What side effects may I notice from using guarana?
Side effects that you should report to your prescriber or health care professional as soon as possible: • anxiety or panic reactions • confusion • dizziness, lightheadedness, or fainting spells • fast or irregular breathing or heartbeat (palpitations) • muscle twitching • nausea and vomiting • seizures (convulsions) • trembling Side effects that usually do not require medical attention (report to your prescriber or health care professional if they continue or are bothersome): • diarrhea • frequent passing of urine • headache • nervousness, restlessness • stomach upset Reduce the amount of guarana you take if you get any of these side effects. Let your prescriber or health care professional know about them if they do not go away or if they annoy you.
