What is the brand name of lidocaine (transdermal)?
Explanation & Rationale
A. Lidoderm is the brand name for the 5 percent transdermal patch containing lidocaine. It functions as a local anesthetic by blocking voltage-gated sodium channels in neuronal membranes. This stabilizes the membrane and inhibits the initiation and conduction of nociceptive nerve impulses. B. Actos is the proprietary brand name for pioglitazone, a thiazolidinedione used in type 2 diabetes mellitus. It acts as an agonist for the peroxisome proliferator-activated receptor gamma to improve insulin sensitivity. It is pharmacologically unrelated to transdermal lidocaine preparations. C. Lithobid is the brand name for a slow-release formulation of lithium carbonate. It is used primarily as a mood stabilizer in the management of bipolar disorder. It modulates neurotransmission via various intracellular signaling pathways and is not a local anesthetic. D. Dilantin is the brand name for phenytoin, a hydantoin derivative used as an antiepileptic medication. It stabilizes neuronal membranes by promoting sodium efflux or decreasing sodium influx during generation of nerve impulses. It is not the brand name for lidocaine.