Women who are or who may become pregnant must not handle crushed or broken Propecia tablets. The medication could be absorbed through the skin. Propecia is known to cause birth defects in a developing male baby. Exposure to whole tablets should be avoided whenever possible, however exposure to whole tablets is not expected to be harmful as long as the tablets are not swallowed.

• Stop taking Propecia and seek emergency medical attention if you experience an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives).
• Other, less serious side effects have been reported but usually resolve with continued treatment. Continue to take Propecia and notify your doctor if you experience
· decreased libido (sex drive);
· decreased volume of ejaculate;
· impotence (trouble getting or keeping an erection); or
· breast tenderness or enlargement.
• Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.