Tapazole (Methimazole)
Purpose of Medication and Method of Action
Tapazole is indicated for the treatment of hyperthyroidism. It acts by blocking the sysntesis of thyroid hormones.
Side Effects
These include: nausea, epigastric distress, fever, joint pains and edema (swelling of extremities). Rarely Tapazole may produce bone marrow depression, liver damage, or a disorder in insulin production leading to hypoglycemia - all of these potential serious side effects can best be prevented by blood testing.
Drug Interactions
An interaction exists between Tapazole and oral anticoagulants (warfarin, dicumerol) with an increase in anticoagulant effect when Tapazole is added to existing anticoagulant therapy.
Cautions and Contraindications
Tapazole is contraindicated in nursing mothers.
Usual Dose
The usual dose is 15 to 40 mg daily in three divided doses for mild to moderate hyperthyroidism.
Patient Medication Information
These information sheets do not list all known side effects of the medications, only the most common side effects. For a complete list of side effects please contact your local pharmacy or the actual drug manufacturing company.