Don't know if I should be freakin out but my fiancé has been giving Guinness Benadryl to help with his really bad allergies but I looked closely tonight and realized it has acetomeniphean (or however u spell it) in it!! It's an over the counter wal mart allergy med. he has been gettin two pills and this contains 650mg in them. How worries should I be?? I won't be giving him these anymore