In a study of the interaction between alcohol and the calcium-channel blocker felodipine (Plendil), the grapefruit juice vehicle for the alcohol appeared to increase felodipine plasma concentrations. Subsequent studies have found that grapefruit juice increases plasma concentrations of several calcium-channel blockers and of some other drugs as well (DG Bailey et al, Clin Pharmacokinet, 26:91, 1994).

Ceftibuten (Cedax - Schering), an oral cephalosporin similar to cefixime (Suprax - Medical Letter, 31:73, 1989), has been approved by the US Food and Drug Administration (FDA) for treatment of acute otitis media, pharyngitis or tonsillitis, and for acute bacterial exacerbations of chronic bronchitis.

Fosfomycin, a broad-spectrum antibiotic used parenterally in Europe for many years, has been approved by the US Food and Drug Administration (FDA) as fosfomycin tromethamine (Monurol - Forest) for single-dose oral treatment of uncomplicated urinary tract infections in women.

Two cholesterol-lowering margarines have been marketed in the USA.

Sirolimus, whlch is structurally related to tacrolimus, has been approved by the FDA for prevention of acute renal transplant rejection. The manufacturer recommends that sirolimus be taken with cyclosporine and corticosteroids.

Bexarotene, a retinoid analog, has been approved by the US Food and Drug Administration for oral treatment of dermatologic manifestations of refractory cutaneous T-cell lymphoma.

Colesevelam hydrochloride (Welchol - Sankyo Pharma), a nonabsorbed hydrophilic polymer that binds bile acids, has been approved by the FDA for reduction of plasma LDL cholesterol in patients with primary hypercholesterolemia.

Many drugs, mostly azole derivatives, are marketed in the USA for topical treatment of vulvovaginal candidiasis. A single-dose, sustained-release formulation of butoconazole nitrate 2% cream (Gynazole 1) is the newest addition. Fluconazole (Diflucan) is approved for single-dose oral treatment.

Palivizumab (Synagis - MedImmune), an injectable monoclonal antibody, has been marketed in the USA since 1999 for prevention of respiratory syncytial virus (RSV) disease in high-risk infants and children.

Formoterol fumarate inhalation powder Foradil Aerolizer, a long-acting beta2-adrenergic receptor agonist, has been approved by the FDA for maintenance treatment of asthma and prevention of exercise-induced bronchospasm. The drug has been available in Europe for many years.