An Obese Patient Asks the Nurse About Using Orlistat (Xenical)

An obese patient asks the nurse about using orlistat (Xenical) for weight reduction. The nurse advises the patient that

A) this drug can cause serious depletion of fat-soluble vitamins and should be used for only several weeks.
B) weight-reduction drugs of any type are used for only those who do not have the willpower to reduce their intake of food.
C) drugs may be helpful in weight loss, but weight gain is likely to recur unless changes in diet and exercise are maintained.
D) the long-term effect of orlistat is not known, and the drug may cause serious side effects such as heart valve problems.