SILDENAFIL IS THE ACTIVE INGREDIENT USED IN VIAGRA.
SILDENAFIL IS THE ACTIVE INGREDIENT IN THE COMMERCIALLY AVAILABLE DRUG CALLED “VIAGRA”. THIS MEDICINE IS IN A CLASS OF DRUGS CALLED PDE5-INHIBITORS. ESSENTIALLY THIS DRUG WILL ENHANCE NITRIC OXIDE RELEASE IN THE PENIS, WHICH IS ESSENTIAL FOR AN ERECTION TO TAKE PLACE.
This medicine is strictly contraindicated to take if taken concurrently with nitrates for chest pain or an alpha blocker such as doxazosin, prazosin, or terazosin. If you take anti-hypertensive medications, this medicine may also be contraindicated. Your practitioner will decide if it is safe for you to take this medication.
You need to discontinue the medicine and consult the clinic if you experience these uncommon side effects from this drug:
- Lightheadedness (due to low blood pressure)
- A prolonged erection (called “priapism”)
- Stuffy nose
- Upset stomach
You need to seek emergency medical attention if you experience:
- Swelling of the tongue, hives, tingling/itching in mouth/throat
- Erection lasting longer than 4 hours
- Sudden loss of vision or hearing
- Chest pain
- Difficulty breathing
