Common wormers are Ivomec, Panacur, Strongid, and Valbazen. Analysis of fecal samples can help determine the parasites present, and what wormer to recommend. Wormers are usually a given orally as a paste, or an injection, either of which can be administered by the owner after training by their veterinarian. Owners should consult with their vets on worming, and anticipate worming anywhere from seasonally to monthly, depending on the locale, season, infestation levels, and llama population per acre. Regular cleanup and disposal of dung piles is practiced by most breeders as a practical method of limiting worm re-infestation and also controlling fly populations.

Most wormers are not safe to give to llamas within 60 to 90 days after breeding and before birthing. Be sure to consult with your veterinarian on a safe worming schedule.