Pain management 15yrs ago took 40mg daily of methadone 4-10mg tabs.45 days ago i began to tamper down... 0 for13days,how long till withdrawel end,thx?

Withdrawal symptoms: Have you been taking 40mg/day of methadone for 15 years? Was this for chronic pain or a drug treatment program? If you have been tapering dose for 45 days, and 0 mg for 13 days that means you came off drug in about a month. Are you taking any other pain medications now? Talk with your prescriber, withdrawal is tricky and individuals vary. See a pain management psychologist for help. Good luck!