Get emergency medical help if you have signs of an allergic reaction to Jalyn (hives, difficult breathing, swelling in your face or throat) or a severe skin reaction (fever, sore throat, burning eyes, skin pain, red or purple skin rash with blistering and peeling).
Stop using this medicine and call your doctor at once if you have:
a light-headed feeling, like you might pass out; or
penis erection that is painful or lasts 4 hours or longer.
Common Jalyn side effects may include:
decreased libido (sex drive);
decreased amount of semen released during sex;
impotence (trouble getting or keeping an erection);
breast tenderness or enlargement;
dizziness; or
runny nose.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Jalyn side effects (more detail)
