Posted by e-Medical PPT Saturday, July 3, 2010
Barrier contraceptive methods place a physical impediment to the movement of sperm into the female reproductive tract.The most popular barrier method is the male condom, a latex or polyurethane sheath placed over the penis. The condom is also available in a female version, which is made of polyurethane. The female condom has a flexible ring at each end — one secures behind the pubic bone to hold the condom in place, while the other ring stays outside the vagina.
And there are various delivery methods for hormonal contraception. Forms of synthetic oestrogens and progestins combinations commonly used include the combined oral contraceptive pill , the Patch, and the contraceptive vaginal ring.Other methods contain only a progestin . These include the progesterone only pill , the injectables Depo Provera (a depot formulation of medroxyprogesterone acetate given as an intramuscular injection every three months) and Noristerat (Norethindrone acetate given as an intramuscular injection every 8 weeks), and contraceptive implants. The progestin-only pill must be taken at more precisely remembered times each day than combined pills.A single-rod implant called Implanon is approved in the United States. The various progestin-only methods may cause irregular bleeding during use.

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