Content provided by Cerner Multum, Inc.
What should I avoid while taking cetirizine and pseudoephedrine?
 | Tell your doctor if you regularly use other medicines that make you sleepy (such as other cold or allergy medicine, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression, or anxiety). They can add to sleepiness caused by cetirizine. |
Avoid taking diet pills, caffeine pills, or other stimulants (such as ADHD medications) without your doctor's advice. Taking a stimulant together with pseudoephedrine can increase your risk of unpleasant side effects.
 | Do not use any other over-the-counter cold medication without first asking your doctor or pharmacist. Pseudoephedrine is contained in many medicines available over the counter. If you take certain products together you may accidentally take too much of this drug. Read the label of any other medicine you are using to see if it contains pseudoephedrine. |
 | Cetirizine can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert. |
 | Avoid drinking alcohol. It can increase some of the side effects of cetirizine. |

| Last updated: | June 24, 2008 |
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