Liquid diets for weight reduction, once discredited because of their adverse effects, are becoming popular again. Now, formula diets are available through physicians or hospitals as part of a packaged weight-reduction program that includes nutrition education and modification of eating and exercise habits. Three widely used programs are Optifast (Sandoz), Medifast (Nutrition Institute of Maryland, 1840 York Road, Timonium, MD 21093) and HMR (Health Management Resources, 59 Temple Place, Boston, MA 02111).

Dexfenfluramine (Redux - Wyeth-Ayerst) has been approved by the US Food and Drug Administration as an aid to diet for treatment of obesity and maintenance of weight loss. Dexfenfluramine is the dextrorotatory isomer of d,l-fenfluramine (Pondimin), which has been marketed for short-term weight reduction for many years and recently has been widely used in combination with phentermine (Ionamin, and others), a sympathomimetic drug (Medical Letter, 36:107, 1994).

Quetiapine (Seroquel - Zeneca), a dibenzothiazepine derivative, has been approved by the FDA for treatment of schizophrenia and other psychotic disorders. It is a new addition to the 'atypical' antipsychotics, which include olanzapine (Zyprexa - Medical Letter, 39:5, 1997), risperidone (Risperdal) and clozapine (Clozaril). Atypical antipsychotic drugs generally are less likely to cause extrapyramidal symptoms than older drugs such as haloperidol (Haldol, and others) or the phenothiazines.

Thalidomide (Thalomid - Celgene), a synthetic derivative of glutamic acid, has been approved by the FDA for use in treatment of leprosy. Thalidomide was marketed in Europe in 1957 as a sedative but withdrawn four years later after being associated with severe human teratogenicity. The drug has since been found to be effective for several different indications.

The FDA has approved a new low-dose formulation of the tricyclic antidepressant doxepin (Silenor – Somaxon) for treatment of insomnia associated with sleep maintenance. The manufacturer claims that this dose retains the hypnotic effect of doxepin, without typical tricyclic adverse effects. Doxepin is available generically in higher-strength capsules and in a liquid formulation.

The FDA has approved the partial opioid agonist buprenorphine in a transdermal formulation (Butrans – Purdue) for treatment of moderate to severe chronic pain. Buprenorphine has been available in the US for years in parenteral formulations for pain and in sublingual tablets for opioid dependence.1 Transdermal buprenorphine has been available in Europe for several years.2

The FDA has approved a nasal spray formulation of fentanyl (Lazanda – Archimedes) for management of breakthrough pain in adult cancer patients who are already receiving and are tolerant to opioid therapy. Fentanyl is already available in the US for intravenous, intrathecal, epidural, transdermal and oral transmucosal use.

Quzyttir (TerSera), an IV formulation of the second-generation H1-antihistamine cetirizine, has been approved by the FDA for treatment of acute urticaria in patients ≥6 months old. Oral formulations of cetirizine (Zyrtec, and others) have been for sale over the counter for years. Quzyttir is the first parenteral formulation of a second-generation H1-antihistamine to become available in the US; parenteral formulations of two first-generation H1-antihistamines, diphenhydramine (Benadryl, and others) and hydroxyzine (Vistaril, and others), have been available for many...

The oral kinase inhibitor futibatinib (Lytgobi – Taiho) has received accelerated approval from the FDA for treatment of adults with previously treated, unresectable, locally advanced or metastatic intrahepatic cholangiocarcinoma with fibroblast growth factor receptor 2 (FGFR2) fusions or other rearrangements. Accelerated approval was based on the overall response rate and duration of response. Futibatinib is the second drug to be approved for this indication; pemigatinib (Pemazyre) was approved earlier.

Polatuzumab vedotin-piiq (Polivy – Genentech), a CD79b-directed antibody and microtubule inhibitor conjugate, has been approved by the FDA for use in combination with rituximab, cyclophosphamide, doxorubicin, and prednisone (R-CHP) for first-line treatment of diffuse large B-cell lymphoma (DLBCL), not otherwise specified (NOS), or high-grade B-cell lymphoma (HGBL) in adults who have an International Prognostic Index (IPI) score ≥2. The drug was previously approved for use in combination with bendamustine and rituximab for treatment of patients with relapsed or refactory DLBCL,...