Nalmefene hydrochloride 1mg/mL (equivalent to 1mg nalmefene base); per vial; soln for IV, IM, or SC inj. IV route preferable: see full labeling. Reversal of opioid effects: see full labeling.
Nalmefene, another newer agent, has a longer duration than naloxone, which can lead to prolonged and severe withdrawal symptoms. The American College of Medical Toxicology recommends against ...