Doramectin
Dectomax is a brand-name veterinary antiparasitic medication containing doramectin, used primarily in cattle and pigs to treat and control internal parasites (such as gastrointestinal roundworms, lungworms) and external parasites (mites, lice, and ticks). It belongs to the macrocyclic lactone class of antiparasitics and is administered via injection or pour-on formulation.
Dectomax is a veterinary antiparasitic used in livestock to treat internal and external parasites including worms, mites, and lice.
Key facts at a glance
- RxNorm
- 73454
- Generic
- Dectomax
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Treats and controls a broad spectrum of internal parasites including gastrointestinal roundworms (such as Ostertagia, Haemonchus, Trichostrongylus), lungworms, and external parasites including warbles, mites, sucking and biting lice, and ticks in cattle and pigs.
Contains doramectin, an endectocide that works by binding to glutamate-gated chloride channels in parasite nerve and muscle cells, causing increased chloride ion flow, resulting in paralysis and death of susceptible parasites.
For veterinary use only in designated animal species. Not for use in female dairy cattle of breeding age. Observe meat and milk withdrawal periods as prescribed. May cause local reactions at injection site. Consult prescribing information for complete species-specific contraindications and safety data.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy