Side effects of decongestants

Decongestant medicines don't usually have side effects, and any side effects you mayexperience are usually mild. Possibleside effects can include: irritationof the lining of your nose headaches feelingor being sick a dry mouth feeling restless or agitated a rash uncontrollable shaking ( tremor ) problems sleeping ( insomnia ) a rapid and/or irregular heartbeat ( arrhythmia ) noticeable heartbeats( palpitations ) in men, difficulty passing urine These side effects should passafter you stop taking the medication. More serious side effects can also occur, such as hallucinations and severe allergic reactions ( anaphylaxis ), but these are very rare.
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