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The initial release of levonorgestrel is approximately 20 micrograms per day.
Levonorgestrel-releasing intrauterine system (IUS).
The product consists of an inserter and levonorgestrel intrauterine system, which is loaded at the tip of the inserter. Inserter components are an insertion tube, plunger, flange, body and slider. The system consists of a white or almost white hormone-elastomer core, mounted on a T-body and covered in opaque tubing, which regulates the release of levonorgestrel. The white T-body has a loop at one end and two arms at the other end. Brown removal threads are attached to the loop. The T-frame of Mirena contains barium sulphate, which makes it visible in X-ray examination.
Excipients/Inactive Ingredients: Polydimethylsiloxane elastomer; Polydimethylsiloxane tubing (containing silica, colloidal anhydrous); Polyethylene; Barium sulphate; Iron oxide.
