Ketorolac (kee'; toe role ak) tromethamine (Toradol), manufactured by Syntex but also marketed by Roche, is the first parenteral nonsteroidal anti-inflammatory drug (NSAID) to become available for analgesic use in the USA. Parenteral indomethacin (Indocin I.V.) has been marketed here since 1985, but only for treatment of patent ductus arteriosus in newborn infants. Other parenteral NSAIDs are available in other parts of the world, but low potency, poor aqueous solubility, and substantial tissue irritation on injection have limited their usefulness. Ketorolac has been approved by the US ...

Testing for drug use has become increasingly common, not only in health care, but also in drug rehabilitation, in the military, at the workplace, after accidents and in the criminal justice system. Performance-enhancing drugs such as anabolic steroids, growth hormone (Genotropin, and others) and erythropoietin (Procrit, Epogen) are not discussed here.

Serious adverse interactions between drugs continue to be reported. Many of these are due to inhibition or induction of cytochrome P450 (CYP) enzymes, particularly CYP3A4. CYP3A is thought to be involved in the metabolism of more than 50 percent of currently prescribed drugs.2 CYP3A4, which is more abundantly expressed than CYP3A5, accounts for most CYP3A activity in vivo.

The FDA has approved nasal spray formulations of the benzodiazepines diazepam (Valtoco — Neurelis) and midazolam (Nayzilam — UCB) for acute treatment of intermittent episodes of frequent seizure activity (seizure clusters). Diazepam rectal gel (Diastat, Diastat AcuDial, and generics) has been used for this indication for many years.

Gamma hydroxy butyrate (GHB) sold in health food stores has recently caused outbreaks of gastrointestinal illness, central-nervous-system (CNS) depression, and seizures.

The Medical Letter review of Palladone (hydromorphone HCl) extended-release capsules (March 14, 2005) warned that a lethal dose could be released if the new formulation was taken with alcohol. Because of that risk, the FDA asked the manufacturer (Purdue) to withdraw the drug from the market (FDA News. July 13, 2005; FDC Reports – “The Pink Sheet” July 18, 2005; 67:3).

View the Table: Some Drug Interactions with Drugs for IBD

Gabapentin (Neurontin - Pfizer), which has been available in the US since 1994, is approved by the FDA only for treatment of partial epilepsy and postherpetic neuralgia, but is widely used off-label for a number of other indications, especially neuropathic pain syndromes. According to one report, among Medicaid recipients in Florida receiving gabapentin, 71% of prescriptions were for chronic pain and 8% for seizures and neuralgia ("The Pink Sheet" February 2, 2004; 66:30).

Uterine artery embolization (UAE) is an increasingly used alternative to surgery for treatment of uterine fibroids.

Anxiety disorders (generalized anxiety disorder, panic disorder, social anxiety disorder, and various phobias) are the most common form of psychiatric illness. They can be treated effectively with cognitive behavioral therapy (CBT) and/or pharmacotherapy.