Topical Analgesics

Lidoderm patch 5% lidocaine Apply up to three patches to intact skin Cover the most painful area Once-daily application per 24 hours (12 hours on/12 hours off) Patches may not be reused May cut into smaller patches Duragesic (Fentanyl Transdermal System) Do not cut into smaller patches (released from a drug reservoir) Each patch lasts 3 days 5 pads per box: cost about $80/box Start with the lowest dose. Comes in 25 ug, 50 ug, 75 ug, 100 ug/hour. Ela max 4% lidocaine EMLA cream 2.5% lidocaine/2.5% prilocaine FDA labeling change 1998 Capsaicin cream 0.025% and 0.075% Zonalon (Doxepin HCl)

Local anesthesia - Topical application, local infiltration, and field block Post Graduate Medicine 1999