Can Benadryl that expired 2 years ago have a negative effect if you take it? And if it's been opened once or twice in the past years, can I still use it? -
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Benadryl Ultratabs Antihistamine Allergy Medicine, Diphenhydramine HCl Tablets, 48 ct 48 Count (Pack of 1)
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Do Certain Over the Counter Drugs have any Effect on the Body? | SiOWfa16: Science in Our World: Certainty and Controversy
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