Some household products use enzymes to speed up chemical reactions: enzymes in biological washing powders break down protein, starch or fat stains on clothes, and enzymes in meat tenderizer break down proteins into smaller molecules, making the meat easier to chew.nzymes differ from most other catalysts by being much more specific. Enzyme activity can be affected by other molecules: inhibitors are molecules that decrease enzyme activity, and activators are molecules that increase activity.
Most men with premature ejaculation respond to daily treatment with SSRIs, and some respond really well, says Ira Sharlip, M.D., a clinical professor of urology at the University of California, San Francisco, and a spokesman for the American Urological Association.
Mifeprex is used after a woman is already pregnant. Plan B One-Step is an emergency contraceptive. It is used to prevent pregnancy. While some people do feel that pregnancy begins at the time of conception, many doctors and the FDA do not describe Plan B One-Step as an abortion pill but as emergency contraception.ach pill contains levonorgestrel, a synthetic version of the hormone progestin. Levonorgestrel has been used in birth control pills for over 35 years. Plan B One-Step contains a higher dose of levonorgestrel than that in regular birth control pills.