The only nonprescription product conditionally approved by the FDA for use in cattle to prevent and treat it.

• Dectomax-CA1 is indicated for prevention and treatment of infestations caused by New World screwworm larvae, and prevention of reinfestation for 21 days, with a short, 35-day withdrawal period.

• Supported by multiple studies and trials 1-4 demonstrating the conditional approval of Dectomax-CA1 against New World screwworm larvae.

Learn more

• Help protect your herd— tackle the problem of New World screwworm with Dectomax / Dectomax-CA1.

Image Source: USDA

Dectomax-CA1 is conditionally approved by FDA pending a full demonstration of effectiveness under NADA 141-616.

Important Information: Dectomax / Dectomax-CA1 Injectable for use in cattle have a 35-day pre-slaughter withdrawal period. Do not use in female dairy cattle 20 months of age or older. Do not use in calves to be processed for veal. Use of Dectomax or Dectomax-CA1 in dogs may result in fatalities. Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism.

1

Moya-Borja GE, Muniz RA, Umehara O, Goncalves LCB, Silva DSF, McKenzie ME. Protective efficacy of doramectin and ivermectin against Cochliomyia hominivorax. Veterinary Parasitology. 1997; 72( 2-3): 101-109. https:// doi. org / 10.1016 / S0304-4017( 97) 00082-4

2

Moya-Borja, GE, Oliveira CMB, Muniz RA, Goncalves LCB.( 1993). Prophylactic and persistent efficacy of doramectin against Cochliomyia hominivorax in cattle. Veterinary Parasitology, 1993; 49( 1): 95-105. doi: 10.1016 / 0304-4017( 93) 90228-F

3

Muniz RA, Anziani OS, Ordoñez J, Errecalde J, Moreno J, Rew RS. Efficacy of doramectin in the protection of neonatal calves and post-parturient cows against field strikes of Cochliomyia hominivorax. Vet Parasitol. 1995; 58( 1-2): 155-161. doi: 10.1016 / 0304-4017( 94) 00702-e

4

Anziani OS, Flores SG, Moltedo H, et al. Persistent activity of doramectin and ivermectin in the prevention of cutaneous myiasis in cattle experimentally infested with Cochliomyia hominivorax. Vet Parasitol. 2000; 87( 2-3): 243-247. doi: 10.1016 / s0304-4017( 99) 00167-3

All trademarks are the property of Zoetis Services LLC or a related company or a licensor unless otherwise noted. © 2026 Zoetis Services LLC. All rights reserved. DMX-00242