What is a good safety rule when taking antihistamines?
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Dr. Mehmet Oz answered:Take most antihistamines, especially those containing diphenhydramine, only at night. If your main symptom is congestion, try a decongestant instead to avoid drowsiness.Take most antihistamines, especially those containing diphenhydramine, only at night. If your main symptom is congestion, try a decongestant instead to avoid drowsiness. More
