Phenylephrine nasal Side Effects

Medically reviewed by Drugs.com. Last updated on Dec 25, 2021.

Applies to phenylephrine nasal: nasal solution, nasal spray

Side effects requiring immediate medical attention

Along with its needed effects, phenylephrine nasal 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 while taking phenylephrine nasal:

Symptoms of too much medicine being absorbed into the body

Note: The above side effects are more likely to occur in children because there is a greater chance that too much of this medicine may be absorbed into the body.

Fast, irregular, or pounding heartbeat
headache or dizziness
increased sweating
nervousness
paleness
trembling
trouble in sleeping

Increase in runny or stuffy nose

Side effects not requiring immediate medical attention

Some side effects of phenylephrine nasal 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: