HomeEssential drugs Thyroid hormones and antihypertensive drugs. Propyl Thiouracil. Potassium iodide Thyroid hormones and anti-thyroid drugs: - levothyroxine - propylthiouracil - potassium iodide. Facebook Twitter Share:Thyroid hormones and antihypertensive drugs. Propyl Thiouracil. Potassium iodide Facebook Twitter WhatsApp Pinterest LinkedIn Reddit Tumblr Telegram Email