Burkholder Tanya H, Jensen James, Chen Hong, Junkins Katherine, Chatfield Jenifer, Boothe Dawn
Veterinary Teaching Hospital, Texas A&M University, College Station, Texas 77843-4466, USA.
J Zoo Wildl Med. 2004 Sep;35(3):395-6. doi: 10.1638/03-047.
Plasma levels of the parasiticide ivermectin were studied by high-performance liquid chromatography in five llamas (Lama glama) after single 200 microg/kg s.c. injections. Ivermectin levels were undetectable in plasma samples drawn up to 4 wk after injection, suggesting that the dosage used was insufficient to reach therapeutic concentrations in this species.