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Doramectin

Detailed information about Doramectin

Official label facts Owner quick guide first Marketing clearly labeled
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Pet Owner Quick Guide

Start here: what this medicine is for, what it does, and when it's usually needed.

Usually used for:

For prevention and treatment of infestations caused by larvae of Cochliomyia hominivorax (myiasis), and prevention of reinfestation for 21 days in cattle.

What it does:

For the treatment and control of the following nematode and arthropod parasites in swine: Gastrointestinal Roundworms Hyostrongylus rubidus - Adults Ascaris suum - Adults, and fourth-stage larvae Oesophagostomum dentatum...

When it's needed:

For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.Consult your veterinarian for assistance in the diagnosis, t...

Call your vet sooner if you notice:

  • For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. Not for use in female dairy cattle 20 months of age or older. Do not use in calves to be processed for veal. For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. Not for use in female dairy cattle 20 months of age or older. Do not use in calves to be processed for veal.

Commonly reported reactions:

  • (2 reports)
  • (2 reports)
  • (2 reports)

What to ask your vet today:

  • Is this medicine the right fit for my pet’s current symptoms?
  • Which warning signs mean I should call back right away?
  • How should I handle missed doses or refusal to take the medicine?
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Doramectin

Doramectin

Drug type: Generic ingredient • Branded profile • FDA branded products available

Species: Both

Manufacturer: Zoetis Inc.

Quick Facts

Official label facts first, then secondary summaries. Marketing content is separated below.

Species: Both
Manufacturer: Zoetis Inc.
Form: Injectable Solution, Liquid (Solution), Topical Solution
Identifiers:
ANADA: 200636 ANADA: 200738 ANADA: 200750 NADA: 141061 NADA: 141095 NADA: 141553 NADA: 141616 NDC Package: 20076-0406-2 NDC Package: 20076-2014-9 NDC Package: 30798-315-19 NDC Package: 30798-545-10 NDC Package: 30798-545-13 NDC Package: 30798-545-17 NDC Package: 51072-107-00 NDC Package: 51072-107-01 NDC Package: 51072-107-02 NDC Package: 54771-1685-1 NDC Package: 54771-1685-2 NDC Package: 54771-1685-3 NDC Package: 54771-2718-2
Source metadata:

Warnings / Contraindications

For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. Not for use in female dairy cattle 20 months of age or older. Do not use in calves to be processed for veal. For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. Not for use in female dairy cattle 20 months of age or older. Do not use in calves to be processed for veal.

  • High: For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. Not for use in female dairy cattle 20 months of age or older. Do not use in calves to be processed for veal. For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. Not for use in female dairy cattle 20 months of age or older. Do not use in calves to be processed for veal.
Source metadata:

Adverse Reactions

Snapshot first, detailed rows second. This section summarizes signal data and is not a diagnosis.

Tap or hover a reaction to see what it means in plain language.

Tracked signals
32
Reported cases
30
Serious reports
22
Species represented
2
Most Reported Reactions
Reaction Cases Species Serious cases
2 Cat, Dog 2
2 Cat, Dog 1
2 Cat, Dog 1
1 Dog 1
1 Dog 1
1 Cat 1
1 Dog 1
1 Cat 1

Species coverage: Dog (21) Cat (11)

View detailed reaction table
Reaction Species Seriousness Frequency Reports
Dog Non-serious - 1
Cat Serious - 1
Dog Non-serious - 1
Dog Non-serious - 1
Cat Serious - 1
Dog Serious - 1
Cat Serious - 1
Dog Serious - 1
Cat Serious - 1
Dog Non-serious - 1
Dog Non-serious - 1
Dog Serious - 1
Cat Serious - 1
Dog Serious - 1
Dog Serious - 1
Dog Serious - 1
Dog Serious - 1
Dog Serious - 1
Dog Serious - 1
Dog Non-serious - 1
Cat Serious - 1
Dog Non-serious - 1
Cat Serious - 1
Dog Non-serious - 1
Cat Serious - 1
Cat Serious - 1
Dog Serious - 1
Cat Serious - 1
Dog Serious - 1
Dog Serious - 1
Dog Unknown - -
Cat Unknown - -
Source metadata:

Storage & Handling

No storage/handling guidance is linked yet.

Source metadata: No source yet.

Documents

Official label facts are separated from secondary summaries.

Official documents: 28 • Secondary summaries: 0

Official label facts
Secondary summaries

No source yet.

Source metadata:

Promotional Materials (Marketing)

This content is marketing material and not clinical guidance.

No marketing assets are linked yet.

No source yet.

Source metadata: No source yet.
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Technical appendix (vet reference)

Canonical medication sections are above. This legacy block remains available for deeper cross-reference without cluttering the primary workflow.

At a Glance

Quick facts and links to official labeling and safety signals.

Data freshness
  • Medication catalog: Source PetWisePlus | Refreshed Feb 12, 2026, 10:44 PM UTC
  • Animal Drugs @ FDA: Source FDA | Refreshed Feb 16, 2026, 11:00 AM UTC
    Applications/products are imported from FDA export data.
  • Animal Drugs @ FDA previews: Source FDA | Refreshed Feb 9, 2026, 3:05 AM UTC
    Label highlights/doc links are fetched from FDA preview endpoints.
  • Animal Drug Product Listing Directory (NDC): Source FDA | Refreshed Feb 16, 2026, 11:00 AM UTC
    Package/product NDCs from FDA’s electronic listing directory (XLS).
  • openFDA reaction terms: Source FDA openFDA | Refreshed Feb 16, 2026, 11:02 AM UTC
  • openFDA case summaries: Source FDA openFDA | Refreshed Feb 9, 2026, 3:20 AM UTC
Official (FDA)
Identity: Generic ingredient • FDA branded products available
Official FDA brands: DECTOMAX®-CA1 DORACIDE™ DectoGard™ Dectomax® Injectable Solution for Cattle and Swine Dectomax® Pour-on Solution for Cattle Doraject™ VALCOR®
Case-reported brands (openFDA): MSK
Catalog species: Both • FDA-labeled species: Beef, Beef cattle two months of age and older, Calves, Dairy, No Use Class Stated Or Implied, No use class stated or implied, Replacement dairy heifers under 20 months of age
Rx/OTC: OTC, RX
Form/route: Injectable Solution, Liquid (Solution), Topical Solution • Injection, Intramuscular, Subcutaneous, Topical
Applications: C 141-616 • NADA 141-553 • ANADA 200-636 • ANADA 200-750 • NADA 141-061 • ANADA 200-738 • NADA 141-095
Documents: 21 (FOI: 15) • SPL: 7 • Label highlights • Official documents
Safety (openFDA)
Top reactions: Dog 20 • Cat 8 • View
Case summaries: 9 (showing 8) • View
openFDA reports are unverified and do not prove causation.
Explore
Linked using: Fda_Label (0.95), Fda_Label (0.95), Fda_Label (0.95)
Diagnosis Codes

Diagnosis-code mappings are not available for this medication yet.

Counseling and Monitoring Highlights

Global Pet owner/Vet mode is controlled in the header. This section avoids duplicate in-page persona tabs.

Owner-facing counseling points
  • For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. Not for use in female dairy cattle 20 months of age or older. Do not use in calves to be processed for veal. For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. Not for use in female dairy cattle 20 months of age or older. Do not use in calves to be processed for veal. (Contraindication, High)
Top reaction signals
Accidental exposure (1) Accidental exposure (1) Administration error NOS (1) Ataxia (1) Ataxia (1) Blindness (1) Breathing difficulty (1) Dilated pupils (1) Dilated pupils (1) Disorientation (1) Emesis (1) General illness (1) Hyperaesthesia (1) Inappropriate packaging or design (1) Incorrect route of drug administration (1) Increased sensitivity to light (1)

Identifiers & Packages

Normalized identifiers (NDC/NADA/ANADA) and package metadata from regulator listings.

Identifiers
ANADA: 200636 ANADA: 200738 ANADA: 200750 NADA: 141061 NADA: 141095 NADA: 141553 NADA: 141616 NDC Package: 20076-0406-2 NDC Package: 20076-2014-9 NDC Package: 30798-315-19 NDC Package: 30798-545-10 NDC Package: 30798-545-13 NDC Package: 30798-545-17 NDC Package: 51072-107-00 NDC Package: 51072-107-01 NDC Package: 51072-107-02 NDC Package: 54771-1685-1 NDC Package: 54771-1685-2 NDC Package: 54771-1685-3 NDC Package: 54771-2718-2 NDC Package: 54771-2718-3 NDC Package: 54771-2718-4 NDC Package: 54771-5438-1 NDC Package: 54771-5438-2
Package NDC Product NDC Form / Route Status
20076-0406-2 20076 -
20076-2014-9 20076 -
30798-315-19 30798 -
30798-545-10 30798 -
30798-545-13 30798 -
30798-545-17 30798 -
51072-107-00 51072 -
51072-107-01 51072 -
51072-107-02 51072 -
54771-1685-1 54771 -
54771-1685-2 54771 -
54771-1685-3 54771 -
54771-2718-2 54771 -
54771-2718-3 54771 -
54771-2718-4 54771 -
54771-5438-1 54771 -
54771-5438-2 54771 -
54771-5438-3 54771 -
61133-4004-2 61133 -
61133-4004-3 61133 -

Enriched Documents

Documents are tiered by source trust: Official, Clinical, Manufacturer, Marketing.

Data Sources & Revision History

Every non-trivial field is expected to include provenance and update timestamps.

Official 18 Clinical 0 Manufacturer 0 Marketing 0
Current Field Facts
  • contraindications: For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result… (Official, 2026-02-12)
  • side_effects: Top reported reactions (openFDA): Accidental exposure, Blindness, Death, Labeled drug-species interaction, Lethargy (see also Central nervous system depression… (Official, 2026-02-12)
  • usage: For the treatment and control of the following nematode and arthropod parasites in swine: Gastrointestinal Roundworms Hyostrongylus rubidus - Adults Ascaris su… (Official, 2026-02-12)
Recent Revisions
  • side_effects updated 2026-02-12 22:44 by etl_backfill • Backfilled from existing medication fields
  • contraindications updated 2026-02-12 22:44 by etl_backfill • Backfilled from existing medication fields
  • usage updated 2026-02-12 22:44 by etl_backfill • Backfilled from existing medication fields

FDA Products & Applications (Animal Drugs @ FDA)

Official sponsor/proprietary-name/application-status records linked by active ingredient.

Product Sponsor Application Status Published
DECTOMAX®-CA1
OTC
Doramectin
Injectable Solution • Injection
Label highlights
Official documents
Zoetis Inc. C 141-616 Approved Oct 30, 2025
VALCOR®
RX
Doramectin Levamisole
Injectable Solution • Subcutaneous
Label highlights
Official documents
Zoetis Inc. NADA 141-553 Approved Mar 4, 2025
DORACIDE™
OTC
Doramectin
Topical Solution • Topical
Label highlights
Official documents
Bimeda Animal Health Limited ANADA 200-636 Approved Dec 2, 2024
Doraject™
OTC
Doramectin
Injectable Solution • Subcutaneous, Intramuscular
Label highlights
Official documents
Cronus Pharma Specialities India Private Ltd. ANADA 200-750 Approved Jun 1, 2023
Dectomax® Injectable Solution for Cattle and Swine
OTC
Doramectin
Liquid (Solution) • Intramuscular, Subcutaneous
Label highlights
Official documents
Zoetis Inc. NADA 141-061 Approved Apr 17, 2023
DectoGard™
OTC
Doramectin
Topical Solution • Topical
Label highlights
Official documents
Aurora Pharmaceutical, Inc. ANADA 200-738 Approved Feb 1, 2023
Dectomax® Pour-on Solution for Cattle
OTC
Doramectin
Liquid (Solution) • Topical
Label highlights
Official documents
Zoetis Inc. NADA 141-095 Approved Jul 9, 2018

Data source: FDA Animal Drugs @ FDA (public search export).

What It's For (FDA Label Highlights)

Extracted from FDA Animal Drugs @ FDA product labeling. Always confirm details with your veterinarian.

Composition / specifications
Each milliliter of solution contains 10 milligrams of doramectin.
Label highlights
Indication

For prevention and treatment of infestations caused by larvae of Cochliomyia hominivorax (myiasis), and prevention of reinfestation for 21 days in cattle.

Dosage

1 mL (10 mg doramectin) per 110 lb of body weight (200 mcg/kg) administered by subcutaneous or intramuscular injection in the neck region.

Limitations

FDA page: Open in Animal Drugs @ FDA

Species: Replacement dairy heifers under 20 months of age • Beef cattle two months of age and older
Composition / specifications
5 mg/mL doramectin and 150 mg/mL levamisole hydrochloride
Beef cattle two months of age and older and in replacement dairy heifers less than 20 months of age
Indication

For the treatment and control of gastrointestinal roundworms (adults and fourth stage larvae) - Ostertagia ostertagi (including inhibited larvae), O. lyrata, Haemonchus placei, Trichostrongylus axei, T. colubriformis, T. longispicularis*, Cooperia oncophora, C. pectinata*, C. punctata, C. surnabada, Bunostomum phlebotomum*, Strongyloides papillosus*, Oesophagostomum radiatum, Trichuris spp.*, and Nematodirus helvetianus*; lungworms (adults and fourth stage larvae) - Dictyocaulus viviparus; eyeworms (adults) - Thelazia spp.; grubs (parasitic stages) - Hypoderma bovis and H. lineatum; sucking lice - Haematopinus eurysternus, Linognathus vituli, and Solenopotes capillatus; mange mites - Psoroptes bovis and Sarcoptes scabiei.

*adults only

Dosage

Inject subcutaneously as a single dose at a dosage of 0.2 mg doramectin and 6 mg of levamisole hydrochloride per kg of body weight.

Limitations

FDA page: Open in Animal Drugs @ FDA

Composition / specifications
5 mg/mL
Cattle
Indication

DORACIDE™ Pour-On solution is indicated for the treatment and control of the following species of gastrointestinal roundworms, lungworms, eyeworms, grubs, biting and sucking lice, horn flies, and mange mites in cattle.
Gastrointestinal roundworms
Ostertagia ostertagi (adults and L4, including inhibited larvae)
O. lyrata (adults)
Haemonchus placei (adults and L4)
Trichostrongylus axei (adults and L4)
T. colubriformis (adults and L4)
Cooperia oncophora (adults1 and L4)
C. pectinata (adults)
C. punctata (adults and L4)
C. surnabada (adults)
Bunostomum phlebotomum (adults)
Oesophagostomum radiatum (adults and L4)
Trichuris spp. (adults)
1Efficacy below 90% was observed against adult C. oncophora in some clinical studies.

Lungworms (adults and fourth stage larvae)
Dictyocaulus viviparus
Eyeworms
Thelazia gulosa (adults)
T. skrjabini (adults)
Lice
Biting Lice
Bovicola (Damalinia) bovis
Sucking Lice
Haematopinus eurysternus
Linognathus vituli
Solenopotes capillatus
Grubs
Hypoderma bovis
H. lineatum
Horn Flies
Haematobia irritans
Mange Mites
Chorioptes bovis
Sarcoptes scabiei

Doramectin topical solution has been proved to effectively control infections and to protect cattle from reinfection with Cooperia oncophora, Dictyocaulus viviparus, Ostertagia ostertagi, and Oesophagostomum radiatum for 28 days; and Cooperia punctata and Haemonchus placei for 35 days after treatment.

Doramectin topical solution has been proved to effectively control infestations and to protect cattle from reinfestation with Bovicola (Damalinia) bovis for 77 days and Linognathus vituli for 42 days after treatment.

Management Considerations for Horn Flies
DORACIDE™ Pour-On solution provides 7 days of persistent activity against horn flies. The product should be used as part of an integrated control program and be combined with other methods for extended horn fly control.

Dosage

Administer topically at a dosage of 500 mcg doramectin per kg (227 mcg/lb) of body weight. Each mL contains 5 mg of doramectin, sufficient to treat 22 lb (10 kg) of body weight.

Limitations

FDA page: Open in Animal Drugs @ FDA

Species: No use class stated or implied • No Use Class Stated Or Implied
Composition / specifications
10 mg/mL
Cattle
Indication

For the treatment and control of the following harmful species of gastrointestinal roundworms, lungworms, eyeworms, grubs, sucking lice, and mange mites.

Gastrointestinal Roundworms (adults and fourth stage larvae)
Ostertagia ostertagi (including inhibited larvae)
O. lyrata
Haemonchus placei
Trichostrongylus axei
T. colubriformis
T. longispicularis1
Cooperia oncophora
C. pectinata1
C. punctata
C. surnabada (syn. mcmasteri)
Bunostomum phlebotomum1
Strongyloides papillosus1
Oesophagostomum radiatum
Trichuris spp.1
Lungworms (adults and fourth stage larvae)
Dictyocaulus viviparus
Eyeworms (adults)
Thelazia spp.
Grubs (parasitic stages)
Hypoderma bovis
H. lineatum
Sucking lice
Haematopinus eurysternus
Linognathus vituli
Solenopotes capillatus
Mange Mites
Psoroptes bovis
Sarcoptes scabiei
1adults
It has been proved to effectively control infections and to protect cattle from reinfection with Cooperia oncophora and Haemonchus placei for 14 days, Ostertagia ostertagi for 21 days, and C. punctata, Oesophagostomum radiatum, and Dictyocaulus viviparus for 28 days after treatment.

Dosage

1 mL (10 mg doramectin) per 110 lb of body weight (200 mcg/kg) administered by subcutaneous (SC) or intramuscular (IM) injection in the neck region.

Limitations
Swine
Indication

For the treatment and control of the following species of gastrointestinal roundworms, kidney worms, sucking lice, and mange mites.
Gastrointestinal Roundworms
(adults and fourth stage larvae)
Ascaris suum
Oesophagostomum dentatum
Oesophagostomum quadrispinulatum1
Strongyloides ransomi1
Hyostrongylus rubidus1
1adults
Lungworms (adults)
Metastrongylus spp.
Kidney worms (adults)
Stephanurus dentatus
Mange Mites (adults and immature stages)
Sarcoptes scabiei var. suis
Sucking Lice (adults and immature stages)
Haematopinus suis

Dosage

1 mL (10 mg doramectin) per 75 lb of body weight (300 mcg/kg) administered by IM injection only.

Limitations

FDA page: Open in Animal Drugs @ FDA

Species: No use class stated or implied • Beef • Calves, excluding veal calves • Dairy, not breeding age
Composition / specifications
Each milliliter of sterile aqueous solution contains 10 milligrams of doramectin.
Swine
Indication
For the treatment and control of the following nematode and arthropod parasites in swine: Gastrointestinal Roundworms Hyostrongylus rubidus - Adults Ascaris suum - Adults, and fourth-stage larvae Oesophagostomum dentatum - Adults, and fourth-stage larvae Oesophagostomum quadrispinulatum - Adults Strongyloides ransomi - Adults Lungworms Metastrongylus spp. - Adults Kidneyworms Stephanurus dentatus - Adults Sucking Lice Haematopinus suis - Adults and Immature stages Mange Mites Sarcoptes scabiei var. suis - Adults and Immature stages
Dosage
300 micrograms per kilogram (10 milligrams per 75 pounds). Administer as a single intramuscular injection.
Limitations
For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism.
Cattle
Indication
For the treatment and control of the following in cattle: Gastrointestinal roundworms: Ostertagia ostertagi (Adults and fourth-stage larvae) Ostertagia ostertagi (Inhibited fourth-stage larvae) Ostertagia lyrata (Adults and fourth-stage larvae) Haemonchus placei (Adults and fourth-stage larvae) Trichostrongylus axei (Adults and fourth-stage larvae) Trichostrongylus colubriformis (Adults and fourth-stage larvae) Trichostrongylus longispicularis (Adults) Cooperia oncophora (Adults and fourth-stage larvae) Cooperia punctata (Adults and fourth-stage larvae) Cooperia pectinata (Adults) Cooperia surnabada (syn. mcmasteri) (Adults and fourth-stage larvae) Bunostomum phlebotomum (Adults) Strongyloides papillosus (Adults) Oesophagostomum radiatum (Adults and fourth-stage larvae) Trichuris spp. (Adults) Lungworms Dictyocaulus viviparus (Adults and fourth-stage larvae) Eyeworms Thelazia spp. (Adults) Grubs Hypoderma bovis Hypoderma lineatum Lice Haematopinus eurysternus Linognathus vituli Solenopotes capillatus Mange mites Psoroptes bovis Sarcoptes scabiei Dectomax injectable solution has been proved to effectively control infections and to protect cattle from reinfection with Cooperia oncophora and Haemonchus placei for 14 days; Ostertagia ostertagi for 21 days; and Cooperia punctata, Oesophagostomum radiatum, and Dictyocaulus viviparus for 28 days after treatment.
Dosage
200 micrograms per kilogram (10 milligrams per 110 pounds). Administer as a single subcutaneous or intramuscular injection.
Limitations
Not for use in female dairy cattle 20 months of age or older. Do not use in calves to be processed for veal. For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism.

FDA page: Open in Animal Drugs @ FDA

Species: No Use Class Stated Or Implied
Composition / specifications
5 mg/mL
Cattle
Indication

For the treatment and control of the following species of gastrointestinal roundworms, lungworms, eyeworms, grubs, biting and sucking lice, horn flies, and mange mites in cattle.

Gastrointestinal roundworms

  • Ostertagia ostertagi (adults and L4, including inhibited larvae)
  • O. lyrata (adults)
  • Haemonchus placei (adults and L4)
  • Trichostrongylus axei (adults and L4)
  • T. colubriformis (adults and L4)
  • Cooperia oncophora (adults1 and L4)
  • C. pectinata (adults)
  • C. punctata (adults and L4)
  • C. surnabada (adults)
  • Bunostomum phlebotomum (adults)
  • Oesophagostomum radiatum (adults and L4)
  • Trichuris spp. (adults)

1Efficacy below 90% was observed against adult C. oncophora in some clinical studies.


Lungworms (adults and fourth stage larvae)
Dictyocaulus viviparus
Eyeworms
Thelazia gulosa (adults)
T. skrjabini (adults)
Lice
Biting Lice
Bovicola (Damalinia) bovis
Sucking Lice
Haematopinus eurysternus
Linognathus vituli
Solenopotes capillatus
Grubs
Hypoderma bovis
H. lineatum
Horn Flies
Haematobia irritans
Mange Mites
Chorioptes bovis
Sarcoptes scabiei

Doramectin topical solution has been proved to effectively control infections and to protect cattle from reinfection with Cooperia oncophora, Dictyocaulus viviparus, Ostertagia ostertagi, and Oesophagostomum radiatum for 28 days; and Cooperia punctata and Haemonchus placei for 35 days after treatment.

Doramectin topical solution has been proved to effectively control infestations and to protect cattle from reinfestation with Bovicola (Damalinia) bovis for 77 days and Linognathus vituli for 42 days after treatment.
Dosage

Administer topically at a dosage of 500 mcg doramectin per kg (227 mcg/lb) of body weight. Each mL contains 5 mg of doramectin, sufficient to treat 22 lb (10 kg) of body weight.

Limitations

FDA page: Open in Animal Drugs @ FDA

Species: Beef • Calves, excluding veal calves • Dairy, females Under 20 months of age
Composition / specifications
Each milliliter of solution contains 5 milligrams of doramectin.
Cattle
Indication
For treatment and control of gastrointestinal roundworms: Ostertagia ostertagi (adults and fourth- stage larvae), O. ostertagi (inhibited fourth-stage larvae), O. lyrata (adults), Haemonchus placei(adults and fourth-stage larvae), Trichostrongylus axei (adults and fourth-stage larvae), T. colubriformis (adults and fourth-stage larvae), Cooperia oncophora (adults and fourth-stage larvae), C. punctate (adults and fourth-stage larvae), C. pectinate (adults), C. surnabada (adults), Bunostomum phlebotomum (adults), Oesophagostomum radiatum (adults and fourth-stage larvae), Trichuris spp. (adults); lungworms: Dictyocaulus viviparous (adults and fourth-stage larvae); eyeworms: Thelazia gulosa (adults), T. skrjabini (adults); grubs: Hypoderma bovis and H. lineatum; sucking lice: Linognathus vituli, Haematopinus eurysternus, and Solenopotes capillatus; biting lice: Damalinia bovis; mange mites: Chorioptes bovis and Sarcoptes scabiei; horn flies: Haematobia irritans; and to control infections and to protect from reinfection with C. oncophora, D. viviparous, O. ostertagi, and O. radiatum for 28 days; and with C. punctate, and H. placei for 35 days after treatment; and to control infestations and to protect from reinfestation with Linognathus vituli for 42 days and with Bovicola (Damalinia) bovis for 77 days after treatment.
Dosage
5 milligrams per 10 kilograms (5 milligrams per 22 pounds).
Limitations
Not for use in female dairy cattle 20 months of age or older. Do not use in calves to be processed for veal.

FDA page: Open in Animal Drugs @ FDA

Official Documents (FDA)

Direct links to FDA-hosted PDFs and SPL packages (when available).

Documents
SPL Packages

FDA page: Open in Animal Drugs @ FDA

Documents
  • Summary

    For the treatment and control of gastrointestinal roundworms (adults and fourth stage larvae) - Ostertagia ostertagi (including inhibited larvae), O. lyrata, Haemonchus placei, Trichostrongylus axei, T. colubriformis, T. longispicularis*, Cooperia oncophora, C. pectinata*, C. punctata, C. surnabada, Bunostomum phlebotomum*, Strongyloides papillosus*, Oesophagostomum radiatum, Trichuris spp.*, and Nematodirus helvetianus*; lungworms (adults and fourth stage larvae) - Dictyocaulus viviparus; eyeworms (adults) - Thelazia spp.; grubs (parasitic stages) - Hypoderma bovis and H. lineatum; sucking lice - Haematopinus eurysternus, Linognathus vituli, and Solenopotes capillatus; mange mites - Psoroptes bovis and Sarcoptes scabiei.

    *adults only

SPL Packages

FDA page: Open in Animal Drugs @ FDA

Documents
SPL Packages

FDA page: Open in Animal Drugs @ FDA

Documents
  • Summary

    Cattle: For treatment and control of gastrointestinal roundworms, lungworms, eyeworms, grubs, sucking lice, and mange mites. It has been proved to effectively control infections and to protect cattle from reinfection with Cooperia oncophora and Haemonchus placei for 14 days, Ostertagia ostertagi for 21 days, and C. punctata, Oesophagostomum radiatum, and Dictyocaulus viviparus for 28 days after treatment.
    Swine: For treatment and control of gastrointestinal roundworms, lungworms, kidney worms, sucking lice, and mange mites.




SPL Packages

FDA page: Open in Animal Drugs @ FDA

Documents
  • Summary
    New indication for persistent control of nematodes in cattle adding protection against Haemonchus placei for 14 days after treatment.
  • Summary
    Provides for the addition of persistent efficacy to protect cattle from reinfection with Cooperia oncophora for 14 days and Oesophagostomum radiatum for 28 days after treatment.
  • Summary

    Adds swine to the previously approved NADA.

  • Summary

    New claims for persistent control of gastrointestinal roundworms and lungworms in cattle.

  • Summary
    For the treatment and control of certain nematode and arthropod parasites in cattle.
  • EA 141-061
  • FONSI 141-061
  • EA 141-061
  • FONSI 141-061
SPL Packages

FDA page: Open in Animal Drugs @ FDA

Documents
SPL Packages

FDA page: Open in Animal Drugs @ FDA

Documents
  • Summary
    This supplement allows the following additional persistent effect indications. DECTOMAX Pour-On solution has been proved to effectively control infestations and to protect cattle from reinfestation with Bovicola ( Damalinia) bovis for 77 days and Linognathus vituli for 42 days after treatment.
  • Summary
    For treatment and control of gastrointestinal roundworms, lungworms, eyeworms, grubs, lice, mange mites and horn flies. To protect cattle from reinfection with Cooperia oncophora, D. viviparus, Ostertagia ostertagi, and O.radiatum for 28 days; and with C. punctata, and Haemonchus placei for 35 days after treatment.
  • Summary
    Provides for addition of a therapeutic claim for Trichostrongylus axei L4 and a persistency claim of 35 days for Haemonchus placei.
  • Summary
    Adds to labeling a new indication for treatment and control of horn fly, Haematobia irritans
  • Summary

    To control infections and to protect cattle from re-infection with Cooperia oncophora and Dictyocaulus viviparus for 21 days, and Ostertagia ostertagi, Cooperia puctata, and oesophagostomum radiatum for 28 days after treatment.

  • EA 141-095
  • FONSI 141-095
SPL Packages

FDA page: Open in Animal Drugs @ FDA

Usage

For the treatment and control of the following nematode and arthropod parasites in swine: Gastrointestinal Roundworms Hyostrongylus rubidus - Adults Ascaris suum - Adults, and fourth-stage larvae Oesophagostomum dentatum - Adults, and fourth-stage larvae Oesophagostomum quadrispinulatum - Adults Strongyloides ransomi - Adults Lungworms Metastrongylus spp. - Adults Kidneyworms Stephanurus dentatus - Adults Sucking Lice Haematopinus suis - Adults and Immature stages Mange Mites Sarcoptes scabiei var. suis - Adults and Immature stages For the treatment and control of the following in cattle: Gastrointestinal roundworms : Ostertagia ostertagi (Adults and fourth-stage larvae) Ostertagia ostertagi (Inhibited fourth-stage larvae) Ostertagia lyrata (Adults and fourth-stage larvae) Haemonchus placei (Adults and fourth-stage larvae) Trichostrongylus axei (Adults and fourth-stage larvae) Trichostrongylus colubriformis (Adults and fourth-stage larvae) Trichostrongylus longispicularis (Adults) Cooperia oncophora (Adults and fourth-stage larvae) Cooperia punctata (Adults and fourth-stage larvae) Cooperia pectinata (Adults) Cooperia surnabada ( syn. mcmasteri ) (Adults and fourth-stage larvae) Bunostomum phlebotomum (Adults) Strongyloides papillosus (Adults) Oesophagostomum radiatum (Adults and fourth-stage larvae) Trichuris spp. (Adults) Lungworms Dictyocaulus viviparus (Adults and fourth-stage larvae) Eyeworms Thelazia spp. (Adults) Grubs Hypoderma bovis Hypoderma lineatum Lice Haematopinus eurysternus Linognathus vituli Solenopotes capillatus Mange mites Psoroptes bovis Sarcoptes scabiei Dectomax injectable solution has been proved to effectively control infections and to protect cattle from reinfection with Cooperia oncophora and Haemonchus placei for 14 days; Ostertagia ostertagi for 21 days; and Cooperia punctata , Oesophagostomum radiatum , and Dictyocaulus viviparus for 28 days after treatment. For treatment and control of gastrointestinal roundworms: Ostertagia ostertagi (adults and fourth- stage larvae), O. ostertagi (inhibited fourth-stage larvae), O. lyrata (adults), Haemonchus placei (adults and fourth-stage larvae), Trichostrongylus axei (adults and fourth-stage larvae), T. colubriformis (adults and fourth-stage larvae), Cooperia oncophora (adults and fourth-stage larvae), C. punctate (adults and fourth-stage larvae), C. pectinate (adults), C. surnabada (adults), Bunostomum phlebotomum (adults), Oesophagostomum radiatum (adults and fourth-stage larvae), Trichuris spp. (adults); lungworms: Dictyocaulus viviparous (adults and fourth-stage larvae); eyeworms: Thelazia gulosa (adults), T. skrjabini (adults); grubs: Hypoderma bovis and H. lineatum ; sucking lice: Linognathus vituli , Haematopinus eurysternus , and Solenopotes capillatus ; biting lice: Damalinia bovis ; mange mites: Chorioptes bovis and Sarcoptes scabiei ; horn flies: Haematobia irritans ; and to control infections and to protect from reinfection with C. oncophora , D. viviparous , O. os

Source: FDA Animal Drugs @ FDA • Reference

Contraindications

For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. Not for use in female dairy cattle 20 months of age or older. Do not use in calves to be processed for veal. For use in Cattle and Swine only. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. Not for use in female dairy cattle 20 months of age or older. Do not use in calves to be processed for veal.

Side Effects

No approved side-effect narrative is linked yet.

openFDA reaction signals are available for Dog 20 and Cat 8 (view top reported reactions).

Top Reported Reactions (openFDA)

Aggregated reaction terms from FDA openFDA reports (not verified; does not prove causation).

Dog
Neurologic
Seizure NOS (4) Tiredness (lethargy) (4) Tremors (4)
Effectiveness
Lack of efficacy (endoparasite) - heartworm (1) Lack of efficacy (endoparasite) - heartworm (1) Lack of efficacy (endoparasite) - heartworm (1) Lack of efficacy (endoparasite) - heartworm (1) Lack of efficacy (endoparasite) - heartworm (1) Lack of efficacy (endoparasite) - heartworm (1)
Other
Accidental exposure (11) Blindness (8) Death (4) Labeled drug-species interaction (4) Mydriasis (4) Intentional misuse (1) Intentional misuse (1) Intentional misuse (1) Intentional misuse (1) Intentional misuse (1) Intentional misuse (1)
Cat
Neurologic
Tiredness (lethargy) (1) Unsteady walking (ataxia) (1)
Other
Accidental exposure (3) Breathing difficulty (1) Dilated pupils (1) Hyperaesthesia (1) Not himself/herself (1) Respiratory distress (1)

Data source: FDA openFDA Animal & Veterinary adverse event reports.

Adverse Event Case Summaries (openFDA)

These are individual FDA adverse event reports. They are unverified and do not prove the medication caused the reaction.

Dog, Mixed (Dog), Male, 9 year, 12.655 kilogram • Drug: MSK, Suspension, Oral • Reactions: Lack of efficacy (endoparasite) - heartworm, Intentional misuse • Outcome: Ongoing

  • Report ID: USA-USFDACVM-2025-US-056100
  • Serious AE: Yes
  • Treated For AE: Yes
  • Sex: Male
  • Age: 9.00 Year
  • Weight: 12.655 Kilogram
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Oral
  • Form: Suspension
Reactions Reported:
Lack of efficacy (endoparasite) - heartworm Intentional misuse
Outcomes: Ongoing

Dog, Cattle Dog - Australian (blue heeler, red heeler, Queensland cattledog), Female, 2 year, 17.236 kilogram • Drug: MSK, Suspension, Oral • Reactions: Accidental exposure, Panting, Vomiting, Mydriasis, Disorientation… • Outcome: Ongoing

  • Report ID: USA-USFDACVM-2024-US-051911
  • Serious AE: No
  • Treated For AE: No
  • Sex: Female
  • Age: 2.00 Year
  • Weight: 17.236 Kilogram
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Oral
  • Form: Suspension
Reactions Reported:
Accidental exposure Panting Vomiting Mydriasis Disorientation Unsteady walking (ataxia)
Outcomes: Ongoing

Dog, Boxer (German Boxer), Male, 8 year, 16.783 kilogram • Drug: MSK, Suspension, Oral • Reactions: Blindness, Dilated pupils, Increased sensitivity to light, Shaking, Unable to stand • Outcome: Ongoing

  • Report ID: USA-USFDACVM-2024-US-037925
  • Serious AE: Yes
  • Treated For AE: Yes
  • Sex: Male
  • Age: 8.00 Year
  • Weight: 16.783 Kilogram
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Oral
  • Form: Suspension
Reactions Reported:
Blindness Dilated pupils Increased sensitivity to light Shaking Unable to stand
Outcomes: Ongoing

Dog, Dog (unknown), Unknown • Drug: MSK, Suspension, Oral • Reactions: General illness, Inappropriate packaging or design, Vials, Damaged, Accidental exposure, Incorrect route of drug administration… • Outcome: Recovered/Normal

  • Report ID: USA-USFDACVM-2024-US-014501
  • Serious AE: Yes
  • Treated For AE: Yes
  • Sex: Unknown
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Oral
  • Form: Suspension
Reactions Reported:
General illness Inappropriate packaging or design Vials, Damaged Accidental exposure Incorrect route of drug administration Labeled drug-species interaction
Outcomes: Recovered/Normal

Dog, Dog (unknown), Unknown • Drug: MSK, Suspension, Unknown • Reactions: Lack of efficacy (endoparasite) - hookworm, Administration error NOS • Outcome: Ongoing

  • Report ID: USA-USFDACVM-2023-US-048157
  • Serious AE: No
  • Treated For AE: No
  • Sex: Unknown
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Unknown
  • Form: Suspension
Reactions Reported:
Lack of efficacy (endoparasite) - hookworm Administration error NOS
Outcomes: Ongoing

Cat, Cat (other), Female, 10 year, 4.536 kilogram • Drug: MSK, Suspension, Oral • Reactions: Tremors, Hyperaesthesia, Accidental exposure • Outcome: Recovered/Normal

  • Report ID: USA-USFDACVM-2023-US-007327
  • Serious AE: Yes
  • Treated For AE: Yes
  • Sex: Female
  • Age: 10.00 Year
  • Weight: 4.536 Kilogram
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Oral
  • Form: Suspension
Reactions Reported:
Tremors Hyperaesthesia Accidental exposure
Outcomes: Recovered/Normal

Cat, Cat (other), Unknown • Drug: MSK, Solution, Oral • Reactions: Seizure NOS, Accidental exposure • Outcome: Ongoing

  • Report ID: USA-USFDACVM-2022-US-052816
  • Serious AE: Yes
  • Treated For AE: Yes
  • Sex: Unknown
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Oral
  • Form: Solution
Reactions Reported:
Seizure NOS Accidental exposure
Outcomes: Ongoing

Cat, Cat (other), Male, 2 year • Drug: MSK, Suspension, Unknown • Reactions: Tiredness (lethargy), Not himself/herself, Breathing difficulty, Accidental exposure • Outcome: Outcome Unknown

  • Report ID: USA-USFDACVM-2021-US-048868
  • Serious AE: Yes
  • Treated For AE: No
  • Sex: Male
  • Age: 2.00 Year
  • Case-reported brand: MSK
  • Case-reported manufacturer: MSK
  • Route: Unknown
  • Form: Suspension
Reactions Reported:
Tiredness (lethargy) Not himself/herself Breathing difficulty Accidental exposure
Outcomes: Outcome Unknown

Data source: FDA openFDA Animal & Veterinary adverse event reports.

Overdose Information

No approved overdose-management text is linked yet. If overdose is suspected, contact a veterinarian or emergency clinic immediately.

Storage & Handling

No approved storage guidance is linked yet for this ingredient. Use manufacturer packaging and veterinary guidance for handling/storage.

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