Does anyone know of a male contraceptive pill, either on the market or in the works?

Answer 1

This is still being tested, so it not out on the market as of yet. You can read more about it here
http://www.msnbc.msn.com/id/3543478/
This page actually tells about how it will work
http://health.howstuffworks.com/male-bc-pill.htm

Answer 2

Seems the wait maybe almost over.

For the first time, a safe, effective and reversible hormonal male contraceptive appears to be within reach. Several formulations are expected to become commercially available within the near future. Men may soon have the options of a daily pill to be taken orally, a patch or gel to be applied to the skin, an injection given every three months or an implant placed under the skin every 12 months, according to Seattle researchers.

Coviello and her colleagues have found that a male contraceptive that releases testosterone over three months is potentially a safe and practical method of contraception. The Seattle researchers have been testing a sustained-released, testosterone micro-capsule, which consists of a thick liquid administered by injection under the skin.

Hope this helps.

Answer 3

Researchers are presently working on a nasal spray contraceptive expected to be equally effective for men and women. The spray. used once a day, releases a substance known as LHRH (Lutenising Hormone-Releasing Hormone) which is produced in both female and male bodies. In the woman it controls ovulation and tn the man, sperm production. The spray has been tested in West Germany and is now under study’ in Sweden, Brazil and Chile.