Chlorphen-12 Allergy Tablets (100 Count)Chlorpheniramine Maleate 12 mg Extended Release Tablets (100 Count) Expiration Date 03 31 2027 About the Chlorphen 12 Allergy Tablets Extended Release Tablets, 12mg Antihistamine 12 Hour Allergy Relief Treats itchy, watery eyes and throat, Relieves upper respiratory allergies, sneezing, runny nose Regular users find relief for refractory post nasal drip Works for indoor and outdoor allergies Antihistamine of choice for use during pregnancy as per the