Phenylephrine Side Effects
What should I watch for?
Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse. Do not use this medicine for longer than directed by your doctor or health care professional.
You may get blurred vision. Do not drive, use machinery or do anything that needs clear vision until you know how this medicine affects you.
If this medicine make your eyes sensitive to light, wear sunglasses and avoid bright sun or other bright lights.
Common and Rare 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 as soon as possible if any of the following side effects occur:
Symptoms of too much medicine being absorbed into the body
Less common with 10% solution; rare with 2.5% or weaker solution
fast, irregular, or pounding heartbeat
increase in blood pressure
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:
More common with 2.5 or 10% solution
Burning or stinging of eyes
headache or browache
sensitivity of eyes to light
watering of eyes
Eye irritation not present before use of this medicine
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.