Country: Australia
Language: English
Source: Department of Health (Therapeutic Goods Administration)
Levonorgestrel
Bayer Australia Ltd
Medicine Registered
MIRENA ® CMI 1 MIRENA ® (MI·RAY·NA) _ _ _intrauterine levonorgestrel delivery system _ CONSUMER MEDICINE INFORMATION WHAT IS IN THIS LEAFLET This leaflet answers some common questions about Mirena. 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 using Mirena against the benefits they expect it will have for you. IF YOU HAVE ANY CONCERNS ABOUT USING THIS MEDICINE, ASK YOUR DOCTOR OR PHARMACIST. KEEP THIS LEAFLET. You may need to read it again. WHAT MIRENA IS USED FOR Mirena consists of a small T- shaped frame made from a plastic called polyethylene. This carries 52 mg levonorgestrel, a hormone used in many contraceptive pills. This structure provides a system for releasing the hormone gradually into the womb (uterus). There are two fine threads, made of iron oxide and polyethylene, attached to the bottom of the frame. These allow easy removal and allow you or your doctor to check that the system is in place. Mirena may be used as a long term and reversible method of contraception, for the treatment of excessive menstrual bleeding (menorrhagia) or for protection from endometrial hyperplasia (excessive growth of the lining of the womb) during hormone replacement therapy. It is placed inside the womb where it slowly releases the hormone (at an initial rate of 20 micrograms per 24 hours) over a period of five years or until it is removed. Mirena works in the treatment of excessive monthly bleeding and as protection in oestrogen replacement therapy by slowly releasing the progestogen hormone levonorgestrel, within the womb. Levonorgestrel suppresses the response of the Read the complete document
130313 MIRENA PI 1 PRODUCT INFORMATION MIRENA ® NAME OF THE MEDICINE MIRENA 20 microgram per 24 hours intrauterine delivery system contains 52 mg levonorgestrel, a progestogen, as the active ingredient. MIRENA is also an intrauterine contraceptive device. The levonorgestrel initial release rate is 20 microgram per 24 hours. Levonorgestrel is a white or almost white, odourless or almost odourless, crystalline powder. It is insoluble in water or hexane, slightly soluble in ethanol or acetone, and sparingly soluble in methylene chloride. The chemical name for levonorgestrel is 13 β- ethyl- 17β-hydroxy-18, 19-dinor-17α-pregn-4-en-20-yn-3-one. The CAS registry number for levonorgestrel is 797-63-7. H OH C CH O H H H Chemical Formula: C21H28O2 Molecular Weight: 312.45 Melting Point: 232-239oC DESCRIPTION MIRENA is an intrauterine delivery system (IUS) based on a T-shaped polyethylene frame, with a cylinder containing a mixture of dimethylsiloxane/methylvinylsiloxane (cross-linked) elastomer and levonorgestrel around its vertical arm. The cylinder is covered by a dimethylsiloxane/methylvinylsiloxane (cross-linked) elastomer membrane, which regulates the release of levonorgestrel. It contains a total of 52 mg levonorgestrel. The levonorgestrel IUS consists of a white or almost white drug core covered with an opaque membrane, which is mounted on the vertical stem of a T-body. The T-body has a loop at one end of the vertical stem and two horizontal arms at the other end. Removal threads are attached to the loop. The vertical stem of the IUS is loaded in the insertion tube at the tip of the inserter. The IUS and inserter are essentially free of visible impurities. 130313 MIRENA PI 2 Excipients Dimethylsiloxane/methylvinylsiloxane (cross-linked) elastomer, Read the complete document