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...
Depends on why you are taking the medication. For a cold or cough different medications are prescribed. The dosage depends on your height and weight and the type of medicine you are taking, some are...
There is no limit to how many times a person can be ill depending on the illness. There are people that go through life with very few periods of feeling unwell, others have continuing or recurring...