The mother should be checked every three to four weeks during the pregnancy so that the lowest possible dose can be given. Too much PTU can cause fetal goiter, hypothyroidism, and mental retardation. Tapozole is a registered trademark of Jones Medical Industries. If you think you are having a reaction to antithyroid drugs, call your doctor immediately. Several pills are taken from one to four times a day, every day for six to 24 months.
Some patients complain that the pills have an unpleasant smell and taste.
There is usually some symptom relief within one to two weeks. In some cases, it can take several months to relieve symptoms. Antithyroid drugs have a relatively low success rate. The likelihood of achieving a permanent remission is increased if the patient takes the medication for one to two years. Within 15 years, the thyroid gland may burn out, resulting in hypothyroidism , and the patient will need thyroid hormone replacement.