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How many milligrams of antihistamine can a person take at one time?
Wiki User
∙ 16y ago
Antihistamine is a class of drugs rather than a specific drug. If you are referring to Benadryl, the most common antihistamine, the maximum dose is 25mg to 50mg three to four times a day, with a daily maximum of 300 mg. However, this is just the general guide; it varies from patient to patient. You should consult a qualified physician with any medication questions.
Wiki User
∙ 16y ago
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How many milligrams can you take of antihistamines to make you drowsy?
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