The FDA has required the addition of information about an increased risk of nonmelanoma skin cancer (basal cell carcinoma [BCC] and squamous cell carcinoma [SCC]) to the labels of products containing the diuretic hydrochlorothiazide.

Aliskiren (Tekturna - Novartis), the first direct renin inhibitor for treatment of hypertension, has been approved for use in a fixed-dose combination with the diuretic hydrochlorothiazide (Tekturna HCT - Novartis). Many angiotensin-converting enzyme (ACE) inhibitors and angiotensin receptor blockers (ARBs) are also available in fixed-dose combinations with hydrochlorothiazide (HCTZ).

The FDA has approved a fixed-dose combination of the angiotensin receptor blocker (ARB) azilsartan and the thiazide-like diuretic chlorthalidone as Edarbyclor (Takeda) for treatment of hypertension

The FDA has approved aliskiren/amlodipine/hydrochlorothiazide (Amturnide) for treatment of hypertension, with no restrictions except that it should not be used for initial therapy. A combination of the direct renin inhibitor aliskiren and the calcium channel blocker amlodipine (Tekamlo) was approved earlier for initial treatment.1Use of combination tablets is, of course, more convenient than taking the components separately, and as long as all the same doses are available and the cost is no greater, there is no reason not to use them.Aliskiren alone or in combination has not been shown to...

Ziac (Lederle), a combination of the beta-blocker bisoprolol fumarate and a very low dose (6.25 mg) of the diuretic hydrochlorothiazide, has been approved for treatment of hypertension by the US Food and Drug Administration (FDA). Bisoprolol, a new cardioselective beta-blocker with no intrinsic sympathomimetic activity, has also been marketed as a single drug (Zebeta - Lederle). The manufacturer is promoting the combination for initial treatment of hypertension with the claim that the low doses of the two drugs used together are effective in lowering blood pressure, but are each too low ...

Many patients with hypertension require more than one drug to control their blood pressure. Tribenzor (Daiichi Sankyo), recently approved by the FDA for treatment of hypertension, combines the calcium channel blocker amlodipine (Norvasc, and others), the angiotensin receptor blocker (ARB) olmesartan (Benicar)and the most commonly prescribed diuretic, hydrochlorothiazide (HCTZ). Tribenzor is not approved for initial therapy, but is recommended for patients not adequately controlled on any 2-drug combination of a calcium channel blocker, an ARB or a diuretic.

Effective treatment of hypertension can prevent organ damage and death. The choice of drugs for initial treatment continues to be controversial.

Most patients with hypertension require more than one drug to control their blood pressure. Exforge HCT (Novartis) is a new 3-drug fixed-dose combination tablet approved by the FDA for treatment of hypertension. It combines the calcium-channel blocker amlodipine (Norvasc, and others) and the angiotensin receptor blocker (ARB) valsartan (Diovan), which are already available in a combination tablet (Exforge), with the most commonly prescribed diuretic hydrochlorothiazide (HCTZ). Exforge HCT is not approved for initial treatment of hypertension, but rather for patients not adequately controlled...

The FDA has approved Byvalson (Allergan), a fixed-dose combination of the beta blocker nebivolol (Bystolic) and the angiotensin receptor blocker (ARB) valsartan (Diovan, and generics), for treatment of hypertension. It is the only combination product that contains nebivolol, and the first to combine a beta blocker with an ARB.

Recent advertisements for indapamide (Lozol - Rorer), an oral antihypertensive/diuretic (Medical Letter, 26:17, 1984), claim that the drug, unlike thiazide diuretics, does not significantly increase serum cholesterol and has a minimal impact on potassium. Indapamide has no thiazide ring but, like chlorthalidone (Hygroton; and others) and hydrochlorothiazide (HydroDiuril; and others), it does have a sulfamoyl benzamide moiety, which is probably responsible for its natriuretic and diuretic effects. Unlike the thiazides, it also has a methylindoline moiety, which apparently decreases...