In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.

Symptoms of overdose may include:

drowsiness
nausea
vomiting
seizures
an irregular heart beat
difficulty breathing
painful erection

 

FDA Information

Why is this medication prescribed?

Other uses for this medicine

Dosage and using this medicine

What special precautions should I follow?

What should I do if I forget a dose?

What side effects can this medication cause?

What storage conditions are needed for this medicine?