Hypertension affects 58 million Americans. Dentists frequently encounter patients who are using one or more antihypertensive medications. This study evaluates the incidence of active duty soldiers dispensed antihypertensive medications at a large military installation. Lisinopril was the most frequently prescribed antihypertensive medication during a 2-month period in 1997 and was followed by hydrochlorothiazide, amlodipine, propranolol, felodipine, verapamil, atenolol, diltiazem, terazosin, clonidine, nifedipine, and metoprolol. These 12 drugs accounted for 93.46% of all antihypertensive medications dispensed. In this study, the percentage of active duty soldiers dispensed any antihypertensive medication was 1.51% (30 different medications were dispensed); 0.16% of all soldiers younger than age 30 and 1.25% of all soldiers older than age 30 were prescribed 1 of the 12 most commonly prescribed antihypertensive agents. Considering the same top-12 antihypertensive agents, the percentage of male soldiers younger than 30 who received a prescription was 0.24% and the percentage of male soldiers older than 30 who received a prescription was 4.3%. The percentage for males older than 40 receiving 1 of the 12 medications listed above was 12.05%. Similarly, the percentages for females were 0.27% for younger than 30, 1.87% for older than 30, and 3.51% for older than 40. Active duty males older than age 30 were more than twice as likely to be prescribed an antihypertensive agent than females in the same age group. Male active duty soldiers older than age 40 were more than 50 times more likely to be prescribed an antihypertensive agent than active duty males younger than 30.