Why shouldn't I just treat with preventative treatment in my reptile as I do in my dog?

We do not recommend treating reptiles without testing first.

While it may seem convenient to use preventative antiparasitic treatments in reptiles — particularly as this is common practice in dogs and cats — this approach is not appropriate or safe for reptiles.

Reptiles differ fundamentally from mammals in their physiology, parasite ecology, and response to medications. Treating without a confirmed diagnosis carries real risks.

Why testing first matters

1. Antiparasitic resistance
   Unnecessary or inappropriate treatment can contribute to resistance, reducing the effectiveness of medications when treatment is genuinely required.

2. Adverse or toxic effects
   Reptiles are far more sensitive to many medications than dogs or cats. Studies and clinical experience show that some antiparasitic drugs can cause serious adverse effects, including toxicity and death, when used incorrectly.

3. Different zoonotic considerations
   Parasites and pathogens carried by reptiles — and their relevance to human health — differ significantly from those seen in dogs and cats. Assumptions based on mammalian medicine can be misleading and unsafe.

For these reasons, it is strongly recommended that treatment decisions are based on diagnostic testing and that a veterinary surgeon assesses the risk–benefit balance before any medication is used.

Test first, then treat — not the other way around.