Peer-reviewed veterinary case report
Transdermal methimazole for treating hyperthyroid cats
By Hoffmann, G et al.·Published in Journal of feline medicine and surgery·2003·Department of Veterinary Clinical Sciences, United States·View original on PubMed →
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Original publication title: Transdermal methimazole treatment in cats with hyperthyroidism.
- Species:
- cat
Plain-English summary
A group of 13 cats with hyperthyroidism (a condition where the thyroid gland is overactive) were treated with a transdermal medication called methimazole, applied to the inner ear. After about 4 weeks, the cats showed clinical improvement and had significantly lower levels of thyroid hormone in their blood. This positive response continued to be observed at a follow-up visit around 5 months later, and no side effects were reported from the treatment. The cats appeared healthier and more comfortable after starting the medication.
People also search for: cat hyperthyroidism treatment · transdermal methimazole for cats · symptoms of hyperthyroidism in cats
Abstract
The objectives of this study were to assess serum thyroxine concentrations and clinical response in hyperthyroid cats to treatment with transdermal methimazole, and to determine if further investigation is indicated. Clinical and laboratory data from 13 cats with hyperthyroidism were retrospectively evaluated. Methimazole (Tapazole, Eli Lilly) was formulated in a pleuronic lecithin organogel (PLO)-based vehicle and was applied to the inner pinna of the ear at a dosage ranging from 2.5mg/cat q 24h to 10.0mg/cat q 12h. During the treatment period, cats were re-evaluated at a mean of 4.3 weeks (recheck-1), and again at a mean of 5.4 months (recheck-2). Clinical improvement was observed, and significant decreases in thyroxine concentrations were measured at recheck-1 (mean: 39.57nmol/L, SEM: 14.4, SD: 41.2) and recheck-2 (mean: 36.71nmol/L, SEM: 13.9, SD: 45.56) compared to pretreatment concentrations (mean: 97.5nmol/L, SEM: 11.42, SD: 39.5). No adverse effects were reported.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/12670432/