Papaverine (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:

• Abdominal pain or tenderness
• Blurred or double vision
• Change in ability to see colors, especially blue or yellow
• Clay-colored stools
• Dark urine
• Decreased appetite
• Deep, slow breathing
• Drowsiness
• Fatigue
• Fever
• Headache
• Insomnia
• Itching
• Loss of appetite
• Nausea and vomiting
• Painful or prolonged erection of the penis
• Skin rash
• Swelling of the feet or lower legs
• Trouble with breathing
• Unusual tiredness or weakness
• Vomiting
• Weakness
• Yellow eyes or skin

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:

• Constipation
• Diarrhea
• Dizziness or lightheadedness
• Fainting
• Fast, pounding, or irregular heartbeat or pulse
• Feeling of constant movement of self or surroundings
• Flushed face
• Itching skin
• Nervousness
• Palpitations
• Pounding in the ears
• Sensation of spinning
• Sleepiness or unusual drowsiness
• Slow or fast heartbeat

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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