Side Effects Of Common Drugs For Hair Loss Treatment :
Minoxidil : Cause a fall in blood pressure, an increase in the heart rate, and weight gain (fluid retention)
Propecia : May cause birth defects in male baby's sex organs if taken by women. Also, potentially irreversible side effects occurring in the group of people taking the drug are erectile dysfunction, ejaculation disorder (decreased volume of ejaculate) and low libido.
How to re-grow lost hair safely:
Clearly, a natural approach is consider a more safer way of re-growing lost hair compared to those unnatural ways that may involve harsh chemicals that may have serious side effects.
If you are interested in re-growing your lost hair naturally, I would highly recommend this very informative and step and step guide from http://www.regrowmyhair.info