Tacrolimus (Prograf - Fujisawa), previously called FK506 (Medical Letter, 33:94, 1991), has been approved by the US Food and Drug Administration for primary prevention of organ rejection in patients receiving liver transplants. The drug has also been used as rescue therapy for organ graft rejection unresponsive to cyclosporine (Sandimmune) and other immunosuppressive drugs.

View the Comparison Table: Some Drugs for Gout

Pegaspargase (peg as par jase; PEG-L-asparaginase; Oncaspar - Rh ne-Poulenc Rorer), a polyethylene glycol (PEG) conjugate of L-asparaginase, has been approved by the US Food and Drug Administration for treatment of acute lymphoblastic leukemia (ALL), the most common malignancy of childhood. The new drug is recommended only for patients who have had allergic reactions to asparaginase. Asparaginase is available commercially as Elspar, which is derived from Escherichia coli. A formulation derived from Erwinia chrysanthemi is available on an investigational basis (Ogden Bioservices,...

Rilonacept (Arcalyst – Kiniksa), an interleukin-1 (IL-1) antagonist that has been available for years for treatment of cryopyrin-associated periodic syndromes, has now been approved by the FDA for treatment of recurrent pericarditis and prevention of further recurrences in patients ≥12 years old. It is the first drug to be approved in the US for this indication. Anakinra (Kineret), an IL-1 receptor antagonist FDA-approved for treatment of rheumatoid arthritis, has been used off-label for years for treatment of recurrent pericarditis.

Homeopathic drugs characteristically consist of very large dilutions of "proven" substances. Serial dilutions of 1:10 are designated by the Roman numeral X. ColciGel (Gensco), a prescription homeopathic gel containing a 10,000-fold dilution of colchicine (colchicinum 4X), is now being marketed for topical treatment and prophylaxis of gout.

The tables in this article list drugs used for treatment of cancer in the USA and Canada and their major adverse effects. The choice of drugs in Table I is based on the opinions of Medical Letter consultants. Some drugs are listed for indications for which they have not been approved by the US Food and Drug Administration. In some cases, such as elderly patients or those with many co-morbid illnesses, the regimen of choice might not be suitable. For many of the cancers listed, surgery and/or radiation therapy may be the treatment of choice or may also be part of the management. Anticancer...

The FDA has approved tesamorelin (Egrifta – EMD Serono), an injectable synthetic analog of growth-hormone- releasing factor (GRF), for reduction of excess abdominal fat in patients with lipodystrophy associated with HIV infection. Growth hormone (somatropin – Serostim; EMD Serono) has been available for years for treatment of HIV wasting.

The oral poly(ADP-ribose) polymerase (PARP) inhibitor olaparib (Lynparza – AstraZeneca) has now been approved by the FDA for use in combination with abiraterone (Zytiga, and others) and either prednisone or prednisolone for treatment of adults with deleterious or suspected deleterious BRCA-mutated (BRCAm) metastatic castration-resistant prostate cancer (mCRPC). Olaparib was previously approved by the FDA for treatment of adults with deleterious or suspected deleterious germline or somatic homologous recombinant repair (HRR) genemutated mCRPC who progressed on prior treatment with...

immune globulin (human) has been available for many years in an intramuscular (IM) formulation for prevention of Rh isoimmunization in pregnant Rh-negative women (Medical Letter, 16:3, 1974). Recently, the US Food and Drug Administration (FDA) approved the first intravenous (IV) immune globulin preparation (WinRho SD - Univax), not only for preventing Rh isoimmunization, but also for treatment of immune thrombocytopenic purpura (ITP) in Rh-positive patients.