Apr 17, Diphenhydramine Citrate: 76 mg orally once a day at bedtime Diphenhydramine Hydrochloride: 25 to 50 mg orally every 4 to 6 hours as. Brand and Other Names:Benadryl, Benadryl Allergy Dye-Free LiquiGels, more. mg/5mL (Benadryl Allergy Childrens, PediaCare Children's Allergy. Learn how to take BENADRYL® products with this helpful dosing guide. 2 to 4 chewable tablets (25 mg to 50 mg) every 4 to 6 hours or as directed by a doctor. Q: I take two Benadryl every night to help me sleep. Repeat every bneadryl hours as needed. Uses : -Allergic conjunctivitis due to foods -Mild, uncomplicated allergic skin continue reading of urticaria long pregnant benadryl here angioedema -Amelioration of allergic reactions to blood or plasma manyy -Therapy for anaphylactic reactions adjunctive to epinephrine and other standard measures nenadryl acute manifestations have been controlled. With symptoms of an allergic reaction to a drug, such as hives, difficulty breathing, or facial swelling, the drug should be stopped and medical attention should be sought. Q: I have been taking Benadryl for almost a year to help with allergies and sleep. Sarah Lewis, RPh. Talk to your doctor or pharmacist how many milligrams in benadryl taking Benadryl and other diphenhydramine products if you have any of these conditions:. Megan Vehara, PharmD. Q: My 78 year old father takes Benadryl every day because he has hives that itch terribly and keep him awake at night. If not, you can get a med syringe at drug stores. If under 6 years, don't give products with more than one ingredient in them FDA recommendation Benadryl and other diphenhydramine products can have some serious side effects. Hopefully the doctor will recommend something that will not cause your child any pains. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances. If you think you or your child has taken an overdose, or if someone else may have overdosed on Benadryl, call a poison control center at or call Measure the Dose. Explore Apps. Diphenhydramine 50 mg-QUA, pink.