<unk> (patch) is an anesthetic agent that is FDA approved for the treatment of pain associated with post-herpetic neuralgia.   Common adverse reactions include hypotension, nausea, dermatitis, hypersensitivity, pruritus and urticaria.
Lidocaine 
Etidocaine
Pramocaine
Tocainide
Quinidine
Cinchocaine
Prilocaine
Flecainide