This content has not been reviewed within the past year and may not represent Web MD's most up-to-date information. To find the most current information, please enter your topic of interest into our search box. A dose of Proscar, used to reduce symptoms of enlarged prostate (benign prostatic hyperplasia or BPH), has five times more finasteride than a dose of Propecia, used to reduce male pattern hair loss. " April 13, 2012 -- The baldness drug Propecia and the BPH drug Proscar may cause infertility and more sexual problems than previously thought, the FDA warns. Both drugs are known to cause erectile dysfunction in some men. Now labels on both drugs will include new warnings: There's no definitive proof that either Propecia or Proscar actually causes these problems. But the FDA has received enough reports of these side effects to cause concern. Even if the drugs do cause these sexual side effects, they've been reported in only a small number of men. For example, in Propecia clinical trials, 3.8% of men taking the drug and 2.1% of men getting an inactive placebo reported sexual problems. Moreover, the warnings are based on relatively small numbers of reported problems. It is an oral medication, taken once a day, and available on prescription. It is prescribed to stimulate hair growth in men with male pattern baldness. Propecia’s active ingredient is finasteride, and it was originally developed to treat a condition which causes enlarged prostate glands (benign prostatic hyperplasia). Finasteride works by reducing dihydrotestosterone (DHT) levels in the scalp. The hormone DHT contributes to male pattern baldness, and Propecia medication helps to reverse the hair loss process by decreasing the effect of DHT on the hair follicles. It takes around three months to see any results from using Propecia. It is recommended for men over the age of 18 only and must not be taken by women. Diflucan injection Pictures of ibuprofen tablets Sep 5, 2012. A closer examination reveals it is unclear, just yet, how common these long-term side effects are. Finasteride Propecia has been approved for. Like most prescription medications, Propecia can cause side effects in some men. Find out which side effects it can cause and what you can do to avoid them. Apr 13, 2012. Both Propecia and Proscar may cause male infertility and/or poor semen quality. This side effect lessens or goes away after men stop taking the. Adam Cloe has been published in various scientific journals, including the "Journal of Biochemistry." He is currently a pathology resident at the University of Chicago. This is because finasteride prevents the way that the body responds to and reacts with different hormones. Cloe holds a Bachelor of Arts in biochemistry from Boston University, a M. One of the effects that minor alterations in testosterone can cause is an increase in estrogen production, which can cause these hormonal side effects. These include an increase in breast size and breast tenderness, as well as decreased libido, Rx List notes. View Full Profile There are a number of side effects which are due to the effects that finasteride has on the hormonal balance in the body. Finasteride is used to treat men with benign prostatic hyperplasia (BPH) and male pattern hair loss, also called androgenetic alopecia. Men with BPH usually have difficulty urinating, a decreased flow of urination, hesitation at the beginning of urination, and a need to get up at night to urinate. Finasteride will make these symptoms less severe and reduce the chance that prostate surgery will be needed. It may be used alone or in combination with other medicines such as an alpha-blocker (doxazosin, Cardura®) to treat BPH. For men with hair loss, finasteride will increase the number of scalp hairs but will not increase the amount of body hair. Finasteride blocks the action of an enzyme called 5-alpha-reductase. This enzyme changes testosterone to another hormone that causes the prostate to grow or hair loss in males. It will increase testosterone levels in the body, which decreases prostate size and increases hair growth on the scalp. Propecia side effects Propecia Pro-Pak Oral Uses, Side Effects, Interactions., Side Effects Of Propecia - Superdrug™ Online Doctor Fluconazole 150 mg canadaWhere can you buy bactrimXanax r039Is applicator required for estrace tabletsPropecia bodybuilding Find information about common, infrequent and rare side effects of Propecia Oral. Common and Rare Side Effects for Propecia Oral - WebMD. Propecia, Proscar New Sexual Dysfunction Warnings - WebMD. Finasteride Propecia Side Effects, Dosage & Results. Hi All, I'm 36 and recently began really thinning on top and receeding at temples. I used to have extremely thick hair. Now when it's wet I see a few balding areas! Finasteride, a 5-alpha reductase inhibitor, widely used in the medical management of male pattern hairloss, has been reported to cause sexual side effects. Jul 12, 2012. A new study suggests that for thousands of men, the sexual side effects of Propecia may last for months to years, even after men stop taking the.