**Question:** Drug used to treat tremors in hyperthyroidism is:-

A. Propranolol
B. Carbimazole
C. Thiamine
D. Phenytoin

**Core Concept:**
Hyperthyroidism is a condition characterized by excessive production and secretion of thyroid hormones, leading to various symptoms and signs. One common symptom is tremors, particularly in the hands. Treatment options aim to alleviate symptoms and manage the underlying cause, which is primarily addressed with antithyroid drugs like Carbimazole.

**Why the Correct Answer is Right:**
The correct answer, Carbimazole, is a specific medication used to treat hyperthyroidism by suppressing thyroid hormone production. It is an antithyroid drug that works by inhibiting the synthesis of thyroid hormones, thereby reducing their levels in the bloodstream and alleviating symptoms like tremors.

**Why Each Wrong Option is Incorrect:**

A. Propranolol (a beta-blocker): While beta-blockers are utilized for various cardiovascular conditions, they do not specifically target hyperthyroidism. They may help control tremors indirectly due to their effect on heart rate and blood pressure, but they are not the primary treatment for hyperthyroidism.

B. Thiamine (vitamin B1): Thiamine is essential for various physiological processes but has no direct impact on hyperthyroidism or tremors. It is a B-complex vitamin and not a treatment option for hyperthyroidism.

D. Phenytoin (anticonvulsant): Phenytoin is primarily used for seizure control and does not address hyperthyroidism or its tremors. It is not an appropriate treatment option for this condition.

**Clinical Pearl:**
Hyperthyroidism is usually managed with antithyroid drugs like Carbimazole, which specifically targets the underlying cause. In some cases, beta-blockers may be used for symptomatic relief, but they are not the primary treatment for hyperthyroidism. Thiamine and Phenytoin are unrelated medications and should not be considered for managing hyperthyroidism or its symptoms.