ExoticRx · exoticrx.com/drugs/thyroid-supplement-levothyroxine-compounded
Compounded T4
Synthetic T4 (thyroxine) that converts to active T3. Replaces deficient endogenous thyroid hormone. Compounded for exotic species or precise small-patient dosing.
Transdermal bioavailability is unpublished and may be unreliable. Oral route preferred when feasible. Monitor T4 levels 4-6 weeks after starting. Compounded for reptiles and birds.
Species references:All Bearded Dragon drugsAll Dog (Domestic) drugs
Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.
A dog/cat sample is shown here. Cited dosing for all 2 species — reptiles, birds, pocket pets, livestock, and equine — is free on the per-species pages above. Pro adds the weight-based calculator for every species.
| Species | Route | Dose | Frequency | Evidence | Source |
|---|---|---|---|---|---|
| Dog (Domestic) | PO | 0.02–0.04 mg/kg | q12h | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
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