Tapazole belongs to the group of medication known as anti-thyroid medications. As the name suggests, this medication is used to treat hyperthyroidism, also known as the overactive thyroid gland. Hyperthyroidism is a condition in which one’s thyroid gland becomes overactive and starts making excessive amounts of the thyroid hormones. The thyroid gland helps in releasing hormones that help in controlling one's metabolism, heart rate, nervous system, breathing, body temperature, weight, etc. However, when this gland is overactive, all of the functions speed up, causing one to suffer from anxiety, nervousness, rapid heartbeat, tremor, excessive sweating, weight loss, insomnia, etc. Methimazole prevents the over-production of thyroid hormone. This medicine is available in two dosages; methimazole 5mg and methimazole 10mg. You can purchase Tapazole online at Canada Pharmacy for the best price.