Implanon NXT is a radiopaque, non-biodegradable, progestagen-only, flexible implant preloaded in a sterile, disposable applicator. It is a white to off-white, soft, flexible rod (4 cm in length and 2 mm in diameter).
Each radiopaque implant contains 68 mg of etonogestrel; the release rate is approximately 60-70 μg/day in week 5-6 and has decreased to approximately 35-45 μg/day at the end of the first year, to approximately 30-40 μg/day at the end of the second year and to approximately 25-30 μg/day at the end of the third year. The applicator is designed to be operated with one hand and to help facilitate correct subdermal insertion of the implant.
Excipients/Inactive Ingredients: Implant core: Ethylene vinyl acetate copolymer (28% vinyl acetate, 43 mg), barium sulphate (15 mg), magnesium stearate (0.1 mg).
Implant skin: Ethylene vinyl acetate copolymer (15% vinyl acetate, 15 mg).