OverviewDectomax (doramectin) 1% Injectable by Zoetis is a long-acting avermectin parasiticide for subcutaneous or intramuscular injection in beef cattle, non-lactating dairy cattle, and swine, providing broad-spectrum control of internal and external parasites. Doramectin is a semi-synthetic avermectin closely related to ivermectin, but with a modified chemical structure that results in a longer half-life and extended duration of activity in cattle — providing a longer window of parasite control compared to standard ivermectin injectable formulations. Dectomax Injectable is effective against gastrointestinal roundworms, lungworms, eyeworms, cattle grubs (warble flies), sucking lice, mange mites, and horn flies. Administered at 1 mL per 110 lbs (50 kg) body weight by SQ or IM injection. The 500 mL vial provides an economical, high-volume supply for herd-level parasite control programs in beef cattle and swine operations.Key Features Doramectin 1% (10 mg/mL) injectable — long-acting avermectin with extended duration of activity vs. standard ivermectin Broad-spectrum control of GI roundworms, lungworms, eyeworms, cattle grubs, sucking lice, mange mites, and horn flies Can be administered SQ or IM — flexible injection route options Longer half-life than standard ivermectin — extended parasite control window Administered at 1 mL per 110 lbs (50 kg) body weight For use in beef cattle, non-lactating dairy cattle, and swine 500 mL vial for economical herd-level parasite control programs Specifications Brand: Zoetis / Dectomax Active Ingredient: Doramectin 1% (10 mg/mL) Drug Class: Avermectin (Macrocyclic Lactone) Form: Injectable Solution (SQ or IM) Dose: 1 mL per 110 lbs (50 kg) body weight Size: 500 mL Species: Beef cattle, non-lactating dairy cattle, swine Best For Fall and spring parasite control programs in beef cow-calf, stocker, and feedlot operations Cattle grub, sucking lice, and mange control where extended duration of activity is desired Operations preferring doramectin's longer half-life over standard ivermectin for extended parasite control Internal and external parasite control in swine operations For use in beef cattle, non-lactating dairy cattle, and swine only. Follow all label directions for dosage, administration route, and withdrawal times. Observe all meat and milk withdrawal periods. Consult your veterinarian for guidance on parasite management and resistance monitoring.
