Sildenafil (Intravenous Route)

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Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor or nurse immediately if any of the following side effects occur:

• Bloating or swelling of the face, arms, hands, lower legs, or feet
• Bloody nose
• Difficult or labored breathing
• Fever
• Rapid weight gain
• Shortness of breath
• Tightness in the chest
• Tingling of the hands or feet
• Unusual weight gain or loss
• Wheezing

• Burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings

• Blindness
• Blurred vision
• Decreased hearing
• Decreased vision
• Loss of hearing
• Seizures

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

• Acid or sour stomach
• Belching
• Diarrhea
• Difficulty with moving
• Feeling of warmth
• Flushing or redness of the skin
• Headache
• Heartburn
• Indigestion
• Joint pain
• Muscle aching or cramping
• Muscle pains or stiffness
• Nausea
• Pain in the arms or legs
• Redness of the face, neck, arms, and occasionally, upper chest
• Sleeplessness
• Stomach discomfort, upset, or pain
• Swollen joints
• Trouble sleeping
• Unable to sleep
• Unusually warm skin

• Burning feeling in the chest or stomach
• Cough
• Pain or tenderness around the eyes and cheekbones
• Runny nose
• Sneezing
• Stuffy or runny nose
• Tenderness in the stomach area

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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