Claim: Levomethadone is is not used for pain and is not like methadone.
Evidence: Levomethadone, sold under the brand name L-Polamidon among others, is a synthetic opioid analgesic and antitussive which is marketed in Europe and is used for pain management and in opioid maintenance therapy. 
Levamethadone; l-Methadone; 6R-Methadone; (–)-Methadone; R-(–)-Methadone; D-(–)-Methadone