Several injectable products are available for soft tissue augmentation of wrinkles and folds. These fillers are often used in conjunction with botulinum toxin type A (Botox) injections.

The FDA has approved subcutaneous injection of methylnaltrexone (Relistor - Wyeth/Progenics), a selective mu-opioid receptor antagonist, for treatment of opioid-induced constipation in patients with advanced illness (such as incurable cancer or end-stage chronic obstructive pulmonary disease) who are receiving palliative care.

An IV formulation of pantoprazole sodium (Protonix IV - Wyeth-Ayerst), a benzimidazole proton pump inhibitor (PPI), has been approved by the FDA for short-term treatment of Zollinger-Ellison Syndrome (ZES) and gastroesophageal reflux disease (GERD) in patients who cannot take oral drugs. Pantoprazole is the first PPI to be approved for IV use in the US.

Mifepristone (RU 486; Mifeprex - Danco), an antiprogestin, has been approved by the FDA for termination of intrauterine pregnancies of 49 days or less. It is generally used with misoprostol (Cytotec - Searle), an E₁ prostaglandin analog marketed in the USA only for prevention of gastric ulcers.

Mecasermin (Increlex - Tercica), which is injected subcutaneously, has been approved by the FDA for treatment of growth failure in children with severe primary insulin-like growth factor (IGF-1) deficiency. Mecasermin is recombinant human (rh) IGF-1. It has also been approved to treat children with short stature who are deficient in growth hormone (GH), but have developed neutralizing antibodies in response to GH treatment. A similar product, mecasermin rinfabate (Iplex - Insmed), that was approved by the FDA for the same indications was withdrawn from the market due to patent...

Palopegteriparatide (Yorvipath – Ascendis), a parathyroid hormone (PTH) 1-34 analog, has been approved by the FDA for treatment of hypoparathyroidism in adults. The parathyroid hormone analog teriparatide (Forteo, and others), which is approved for treatment of postmenopausal osteoporosis, has been used off-label for treatment of hypoparathyroidism.

Varenicline tartrate (Chantix - Pfizer) is now available for oral treatment of tobacco dependence. Some other drugs for this indication are listed in this article.

Atogepant (Qulipta – Abbvie), an oral small-molecule calcitonin gene-related peptide (CGRP) receptor antagonist ("gepant"), has been approved by the FDA for prevention of episodic migraine in adults. It is the second oral CGRP receptor antagonist to be approved in the US for this indication; the first was rimegepant (Nurtec ODT), which is also approved for acute treatment of migraine. Parenteral CGRP monoclonal antibodies are approved for prevention of migraine (see Table 3).

Montelukast sodium (Singulair - Merck), a leukotriene receptor antagonist, has been approved by the US Food and Drug Administration (FDA) for oral prophylaxis and chronic treatment of asthma in adults and children at least 6 years old. It is the third 'leukotriene modifier' to become available in the USA; zafirlukast (Accolate - Medical Letter, 38:111, 1996) and zileuton (Zyflo - Medical Letter, 39:18, 1997) were marketed previously. Neither zafirlukast nor zileuton has been approved by the FDA for use in children less than 12 years old. Leukotriene modifiers are not recommended for...

Mycophenolate mofetil (CellCept - Roche) has been approved by the US Food and Drug Administration for oral use in preventing organ rejection in patients receiving allogeneic renal transplants. It is being promoted as an improvement over azathioprine (Imuran) for concurrent use with cyclosporine (Sandimmune; Neoral) and corticosteroids.