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Does antihistamine have any side effects if you take above the recommended dosage for extended periods of time?
Asked by richardhenry (12692)
June 10th, 2008
I get hay-fever sometimes, and occasionally take 20mg (works perfectly) instead of the recommended 10mg (doesn’t do much).
Are there any side effects to taking an increased dosage? I tend to do it for a three to four week period once a year.
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