Страна: Австралия
Язык: английский
Источник: Department of Health (Therapeutic Goods Administration)
Propylthiouracil
Phebra Pty Ltd
Medicine Registered
PTU™ 50mg Tablets Page 1 of 4 _Version 06 _ PTU™ 50MG TABLETS _ _ _Propythiouracil _ CONSUMER MEDICINE INFORMATION WHAT IS IN THIS LEAFLET This leaflet answers some common questions about PTU. It does not contain all the available information. It does not take the place of talking to your doctor or pharmacist. All medicines have risks and benefits . Your doctor has weighed the risks of you taking PTU against the benefits they expect it will have for you. IF YOU HAVE ANY CONCERNS ABOUT TAKING THIS MEDICINE, ASK YOUR DOCTOR OR PHARMACIST. KEEP THIS LEAFLET WITH THE MEDICINE. You may need to read it again. WHAT PTU IS USED FOR This medicine is used to treat an overactive thyroid gland. An overactive thyroid gland produces too much thyroid hormone. Too much thyroid hormone is called hyperthyroidism and causes certain symptoms your doctor will have recognised. This medicine may also be used to treat symptoms of hyperthyroidism before surgery or radioactive iodine therapy. This medicine belongs to a group of medicines called antithyroid medicines. This medicine works by stopping thyroid hormone from forming. This medicine may take up to a week to reduce the symptoms of hyperthyroidism. ASK YOUR DOCTOR IF YOU HAVE ANY QUESTIONS ABOUT WHY THIS MEDICINE HAS BEEN PRESCRIBED FOR YOU. Your doctor may have prescribed it for another reason. BEFORE YOU TAKE PTU _WHEN YOU MUST NOT TAKE IT_ _ _ DO NOT TAKE PTU IF YOU HAVE AN ALLERGY TO: • any medicine containing propylthiouracil • any of the ingredients listed at the end of this leaflet • any other similar medicines called thioamide derivatives. Some of the symptoms of an allergic reaction may include: • shor Прочитать полный документ
PRODUCT INFORMATION Product Information- PTU™ 50mg Tablets Page 1 of 4 Version 08 PTU™ 50mg Tablets NAME OF THE MEDICINE Propylthiouracil Chemical Name: 1,2-dihydro-6-propyl-2-thioxopyrimidine-4-one The molecular weight of the compound is 170.2, the molecular formula is C 7 H 10 N 2 OS and the CAS registry number is 51-52-5. Structural Formula : DESCRIPTION Propythiouracil is a thioamide derivative which occurs as a white crystalline powder, odourless with a bitter taste, very slightly soluble in water, sparingly soluble in ethanol and soluble in solutions of alkali hydroxides or ammonia. PTU™ 50 mg Tablets contain 50 mg of the active ingredient propylthiouracil. The inactive ingredients are lactose, magnesium stearate, povidone, sodium lauryl sulphate and maize starch. PTU™ 50 mg Tablets are white, round, biconvex and uncoated. One side is debossed ‘PRESTAB’ and other side is plain. PHARMACOLOGY Category: Antithyroid Propylthiouracil blocks the peripheral conversion of thyroxine (T 4 ) to triiodothyronine (T 3 ) by inhibiting incorporation of iodide into tyrosine. Propylthiouracil is rapidly absorbed. The half-life in plasma approximates 2 hours (in anuric patients T½ 8.5 hours). Protein binding of propylthiouracil is approximately 75%. The drug is metabolized in the liver and is excreted in the bile (primary route) with approximately 30% being excreted in the urine as metabolites or whole drug. Propylthiouracil does not interfere with the action and the release of exogenous thyroid hormone. Clinical response, therefore, does not occur until circulating and colloid-stored thyroid hormone is utilised, and as such depends in part on the a Прочитать полный документ