What is the primary concern when handling medications like Methimazole?

The primary concern when handling medications like Methimazole is the potential toxicity through skin contact. Methimazole is an antithyroid medication commonly used to treat hyperthyroidism in cats. One of the critical safety considerations with this drug is that it can be absorbed transdermally, meaning that it can enter the body through the skin if there's direct contact. This poses a risk not only to the person handling the medication but also to other pets in the vicinity.

When handling Methimazole, it's essential to wear gloves and take precautions to avoid any skin contact, as unintended absorption can lead to adverse effects. This concern emphasizes the importance of following safety protocols in veterinary settings to ensure both human and animal safety.

Other concerns, such as the cost of treatment or complexity of administration, may be relevant in a broader treatment context, but they do not pose the immediate safety risk that potential toxicity through skin contact does. Fast-acting effects are not particularly associated with Methimazole, as it typically requires time to adjust thyroid levels in the patients treated, making that factor less relevant compared to handling precautions.