A certain antihistamine is often prescribed for allergies. A typical dose for a 100-pound person is 25 mg every six hours. Complete parts (a) and (b) below. a. Following this dosage, how many 12.6 mg chewable tablets would be taken in a week? b. This antihistamine also comes in a liquid form with a concentration of 12.6 mg/9 mL. Following the prescribed dosage, how much liquid antihistamine should a 100-pound person take in a week?
From part A we know a person can take 56 tabs (56 x 12.5mg) per week. In liquid form, the single dose is contained in 9mL if solution. If you need 56 doses, you will need 56 x 9 = 504mL.
