The most common side effects of the active ingredient (sildenafil) are: headaches, nasal congestion, flushing, upset stomach, and dizziness. For more information on side effects and other safety information, see Important Safety Information.
The most common side effects of the active ingredient (sildenafil) are: headaches, nasal congestion, flushing, upset stomach, and dizziness. For more information on side effects and other safety information, see Important Safety Information.