Here's what the manufacturer says about their product:

This has a wide spectrum of activity against bacteria, protozoa, yeasts, fungi and some viruses. It has all of the activity of free iodine but with much reduced irritant sensitising effects, and it does not stain.

Tamodine is suitable for cleaning mouth rot lesions in the mouths of reptiles. These are likely also to need antibiotic treatment from a Veterinary Surgeon and will also benefit from supplementation with ACE-HIGH (this is likely to be necessary as part of a tube feeding program). We suggest that you apply some Tamodine to wet cotton wool and use this to gently cleanse the surface of ulcers or wounds. Once clean, wipe off any excess, and release the animal.

POVIDONE-IODINE COMPOUNDS - Referred to by Holt 1981 (in "Diseases of the Reptilia" Volume 1. edited by J.E.Cooper & O.F.Jackson) as "Probably the most consistently safe antiseptics/disinfectants of value are the
povidone-iodine compounds..."

We would advise against using TAMODINE on amphibia since they can absorb chemicals through the skin.