Avanafil (Oral 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 immediately if any of the following side effects occur:

• Blurred vision
• Dizziness
• Headache
• Nervousness
• Pounding in the ears
• Slow or fast heartbeat

• Arm, back, or jaw pain
• Bladder pain
• Bloating or swelling of the face, arms, hands, lower legs, or feet
• Bloody or cloudy urine
• Chest pain or discomfort
• Chest tightness or heaviness
• Difficult or labored breathing
• Difficult, burning, or painful urination
• Fast, irregular, pounding, or racing heartbeat or pulse
• Frequent urge to urinate
• Increased erection
• Lower back or side pain
• Nausea and vomiting
• Pain in the groin or genitals
• Pain, redness, or swelling in the arm or leg
• Rapid weight gain
• Sharp back pain just below the ribs
• Shortness of breath
• Sweating
• Tightness in the chest
• Tingling of the hands or feet
• Unusual tiredness or weakness
• Unusual weight gain or loss

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:

• Feeling of warmth
• Fever
• Muscle aches
• Redness of the face, neck, arms, and occasionally, upper chest
• Sore throat
• Stuffy or runny nose

• Acid or sour stomach
• Belching
• Body aches or pain
• Change in color vision
• Chills
• Cough
• Cough producing mucus
• Diarrhea
• Difficulty having a bowel movement (stool)
• Difficulty moving
• Ear congestion
• Heartburn
• Indigestion
• Joint pain
• Loss of appetite
• Loss of voice
• Muscle pain or stiffness
• Pain or tenderness around the eyes and cheekbones
• Rash
• Shivering
• Sneezing
• Sweating
• Trouble sleeping

• Anxiety
• Bloody nose
• Bone pain
• Burning feeling in the chest or stomach
• Confusion
• Cool, pale skin
• Depression
• Feeling of constant movement of self or surroundings
• Increased hunger
• Itching skin
• Muscle aching or cramping
• Muscle spasms
• Nightmares
• Seizures
• Sensation of spinning
• Shakiness
• Sleepiness or unusual drowsiness
• Sleeplessness
• Slurred speech
• Swollen joints
• Tenderness in the stomach area
• Unable to sleep

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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