This medicine is a phosphodiesterase inhibitor used to treat erectile dysfunction (ED).
Before Using
Some medicines or medical conditions may interact with this medicine. INFORM YOUR DOCTOR OR PHARMACIST of all prescription and over-the-counter medicine that you are taking. DO NOT TAKE THIS MEDICINE if you are also taking or using nitroglycerin or other nitrates in any form. ADDITIONAL MONITORING OF YOUR DOSE OR CONDITION may be needed if you are taking cimetidine, erythromycin, ketoconazole, itraconazole, mibefradil, or an HIV protease inhibitor. Inform your doctor of any other medical conditions or allergies. USE OF THIS MEDICINE IS NOT RECOMMENDED if you have a history of heart conditions, high or low blood pressure, stroke, or retinitis pigmentosa. Contact your doctor or pharmacist if you have any questions or concerns about taking this medicine.
Directions
Follow the directions for using this medicine provided by your doctor. TAKE THIS MEDICINE about 1 hour before sexual activity, although it may be taken from 30 minutes to 4 hours before sexual activity. STORE THIS MEDICINE at room temperature between 59 and 86 degrees F (15 and 30 degrees C) in a tightly-closed container, away from heat and light.
Cautions
DO NOT EXCEED THE RECOMMENDED DOSE without checking with your doctor. DO NOT TAKE THIS MEDICINE MORE THAN once a day. DO NOT TAKE THIS MEDICINE IF YOU TAKE OR USE NITROGLYCERIN, including nitroglycerin tablets, patches, or ointment, OR OTHER NITRATES, such as isosorbide. If you are not sure whether a certain medicine is a nitrate, contact your doctor or pharmacist. USE OF THIS MEDICINE WILL NOT PREVENT the spread of sexually transmitted diseases (STDs), including human immunodeficiency virus (HIV). BEFORE YOU BEGIN TAKING ANY NEW MEDICINE, either prescription or over-the-counter, check with your doctor or pharmacist.
Possible side effects
SIDE EFFECTS that may occur while taking this medicine include headache, flushing, upset stomach, stuffy nose, diarrhea, blurred vision, changes in blue or green vision, or increased light sensitivity. If they continue or are bothersome, check with your doctor. CHECK WITH YOUR DOCTOR AS SOON AS POSSIBLE if you experience prolonged abnormal, painful erections. If you notice other effects not listed above, contact your doctor, nurse, or pharmacist.
Drug interactions
Drug interactions can result in unwanted side effects or prevent a medicine from doing its job. Use our drug interaction checker to find out if your medicines interact with each other.
If you take too much
If overdose is suspected, contact your local poison control center or emergency room immediately.
Additional information
If your symptoms do not improve or if they become worse, check with your doctor. DO NOT SHARE THIS MEDICINE with others for whom it was not prescribed. DO NOT USE THIS MEDICINE for other health conditions. KEEP THIS PRODUCT out of the reach of children. IF USING THIS MEDICINE FOR AN EXTENDED PERIOD OF TIME, obtain refills before your supply runs out.
