A low-cost, safe, and effective contraceptive implant
Zarin®, Levoplant, also known as Sino-implant (II), is a subcutaneous contraceptive implant manufactured in China by Shanghai Dahua Pharmaceutical Company Limited. The implant is composed of two thin, flexible rods made of medical grade silicone, each containing 75 mg of levonorgestrel (a synthetic progestin). Each rod consists of a drug core and an external medical silastic tube that is sealed at both ends with medical adhesive. The implant is inserted under the skin of the upper arm.