Clinical studies have demonstrated that Propecia side effects use is very rare indeed and only happen if a few number of cases. In some cases, the following Propecia side effects (Finasteride) have been notes such as
Allergic Reactions including a bodily rash itching at certain parts of the body
Hives over certain portions of the body swelling of the lips and face
Problems with ejaculation
If you have any of these side effects or any changes in your breasts such as lumps, pain or nipple discharge. You should make sure that you consult your doctor if you see signs of any other adverse reactions.
A very small portion of men suffered from some sort sexual side effects, however each of these occurred in less than 2% of men. Sexual side effects include:
Less desire for sex or loss of libido
Difficulty in achieving an erection or impotence
Decrease in the amount of semen.
These side effects went away in men who stopped taking Finasteride because of them. Additionally, these side effects reduced to a minute amount of 0.3% of men or less by the fifth year of treatment. These side effects however examined in three clinical experiments regarding Propecia usage, each lasting duration of twelve months. Results showed that 1.4% of Propecia patients (n=945) had to stop taking Propecia Finasteride due to adverse reactions or due of Propecia side effects that were considered to be “possible, probably, or definitely” related to the use of the drug. However, of the patients who took a sugar pill (placebo; n=934) 1.6% of patients had to discontinue use due to adverse reactions to treatment.
The only other noted Propecia side effect is that it can affect a blood test called PSA (prostate-specific antigen). This test used for the screening of prostate cancer. If you have a PSA test done, tell your doctor that you are taking pills. Women are pregnant should not take propecia (Finasteride) and if you would like to start treatment and are female, you should consult your doctor. Finasteride treatment will have no adverse effects on future foetuses. If you are pregnant, however it has been showing that the Finasteride could be transmitted to a male foetus, causing a birth defect called hypospadis, where the urethra in a baby male’s foetus opens further down the underside of the penis and not at the tip. It is not recommend that women take Propecia when breastfeeding either as studies examining transmission of Finasteride through breastfeeding have not been conclusive.