For example, the alkaloid D - tubocurarine, extracted from a liane, Chondradendron tomentosum, is widely used as a muscle relaxant in surgery.    From Wordnik.com.  [Chapter 7] Reference

'Clearance approaches in phar - macodynamics: application to D-tubocurarine'.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Some, like botox and tubocurarine not used much anymore, but was until recently http://en.wikipedia.org/wiki/tubocurarine were discovered as toxins first and used precisely because of their toxic properties.    From Wordnik.com.  [Botox injections interfere with somatic response - The Panda's Thumb] Reference

Obvious examples include nalox - (wanted), metoclopramide-naproxen (the absorp - one for opioid overdose and physostigmine for tion of the latter being hastened by the former for reversal of tubocurarine in anesthesia.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference