This text is for informational purposes only. Please consult with a doctor or pharmacist before using any medication. Read the manufacturer’s Product Information leaflet that comes with the medication.

Important: If an erection persists for longer than 4 hours, contact a doctor or call 911 at once. Otherwise, go to a hospital emergency room immediately. Treatment for this condition, known as priapism, should be given within six hours, otherwise it can result in irreversible damage to the penis.

Some of the common side effects of alprostadil are:

• The penis can become bruised, scarred, or bent, especially after long-term use of alprostadil
• The skin on the penis may swell, discolor or bruise, become irritated, inflamed, or swollen, itch, bleed, or feel numb, warm, tender, or painful at the site of injection.
• Muscle spasms
• The testes or scrotum can become red, swollen, or painful or develop lumps called spermatoceles.
• Erections can be uncomfortable and painful, and ejaculation may change
• The foreskin and head of the penis can feel tight or swollen
• Urination can change, either passing more urgently and frequently than normal or with pain or difficulty
• Blood can be seen in the urine or at the end of the penis, which could be because the medicine was accidentally injected directly into the urethra
• Pelvic pain, weakness, sweating, nausea, swollen arms or legs, common cold, dry mouth, yeast infection.

Not all side effects are listed here. If these or other unlisted symptoms persist or worsen, consult with a healthcare provider or pharmacist.

Caverject / Viridal can help men with erectile dysfunction achieve a sustainable erection and engage in normal sexual activity. Erectile dysfunction is diagnosed as the inability to achieve and maintain an erection firm enough for satisfactory sexual intercourse. It can be both a short-term and a long-term problem. The primary symptoms include difficulty getting an erection and sustaining the erection right through sexual activity.