Scientists have been working on this for a while and we're closer than ever to an approved birth control pill for men.
One of the drugs, H2-Gamendazole, can stop sperm from maturing. The unfinished sperm fragments are then reabsorbed into the testis, never entering the semen and without sperm, there will be no fertilization.
Another drug, JQ1 was accidentally discovered during cancer research. The drug is able to make cancer and sperm cells forget how to form new cells by blocking two specific brodomain. In a test, mice given the drug were unable to produce offsprings.
In Indonesia, the gendarussa plant has been used for many years by tribesmen in Papua to prevent impregnating their wives. The men would take a cup of tea containing the plant 30 minutes before sex with their wives. Now, scientists have synthesized a pill from the plant which works by weakening the enzymes that allows sperm penetrate the female ovum, thus inhibiting fertilization. The due date for release of the pill in Indonesia is 2016.
For those who don't fancy the pill and vasectomy, the Vasalgel which can last up to 10 years will be handy. The gel is injected into the man's vas deferens to stop sperm from escaping and an injection of a solution easily flushes the gel out, restoring free sperm flow.
Will men love these pills? Only time will tell.