Bendamustine HCl (Treanda - Cephalon), an unusual DNA-alkylating agent that has been used in Europe for many years to treat lymphoma, has now been approved by the FDA for treatment of chronic lymphocytic leukemia (CLL) and non-Hodgkin's lymphoma (NHL).

Acute toxic reactions to drugs of abuse continue to be important problems. Some patients may have mixed intoxications with complex combinations of signs and symptoms.

Changes caused by one drug in the absorption, distribution, metabolism or excretion of another may lead to a pharmacokinetic adverse drug interaction (DN Juurlink et al, JAMA 2003; 289:1652). Additive drug interactions, such as vasodilation caused by both sildenafil (Viagra) and nitrates, can also have adverse effects.

The incidence of oral cancer appears to be increasing, especially in younger patients. Risk factors include use of tobacco and alcohol, and exposure to human papillomavirus. ViziLite Plus (Zila Pharmaceuticals) is a combination device that uses fluorescent light and toluidine blue tissue staining to help dentists identify abnormal changes in the mucous membranes of the oral cavity. Originally developed for detecting abnormal growths on the uterine cervix, in 2001 it received FDA clearance for "identification, evaluation, and monitoring of oral mucosal abnormalities in a patient population at...

Gastroesophageal reflux disease (GERD) is the most common GI condition encountered in the outpatient setting; it affects about 20% of people in the US.