Green Iguana toxicology & hazards: first-hand veterinary sources (Merck Veterinary Manual; PMC peer-reviewed review)
Source: first-hand veterinary references (Merck Veterinary Manual; a peer-reviewed review of NSAID and opioid pharmacology in reptiles, PMC9420515). These references are non-Open-Access, so the points below are paraphrased derived summaries (numbers and proper nouns preserved, sentences rewritten) per COPYRIGHT_POLICY §3; each point is independently checkable against the cited source.
Claims (derived summary — method: paraphrase)
- Ball pythons are sensitive to many products that are safe for dogs and cats: fipronil-containing dog and cat flea and tick treatments are not formulated for reptiles and are a recognised cause of poisoning in small and exotic animals, so they must never be applied to snakes.
- Snake mites must be treated only with veterinary-approved, reptile-specific products at the correct dose; over-the-counter dog and cat parasite products are a common source of reptile toxicosis.
- Non-steroidal anti-inflammatory drugs (NSAIDs) are used for pain in reptiles, but reptilian dosing is often extrapolated from mammals and varies between species; meloxicam is the most studied NSAID in reptiles yet safe dosing is not fully established, so NSAIDs should be given only under veterinary direction.
- Heavy metals are a recognised reptile hazard: lead (from fishing sinkers, lead shot, old paint, or ceramic-glaze food and water bowls) and zinc (from galvanized cage hardware) can be ingested and cause poisoning, so enclosures should use lead-free, food-safe materials.
- Feed captive-bred prey items; wild-caught rodents may carry pesticide residues or parasites and are best avoided.
- Avoid aromatic cedar and other irritant wood substrates, and guard against thermal burns from unguarded heat sources — both are common reptile housing hazards.
- Iguanas are herbivorous; many common garden and houseplants are toxic or bind calcium — oxalate-rich greens such as spinach, rhubarb and beet greens should be limited because oxalates bind dietary calcium, and any plant should be checked before feeding.