Methadone Side Effects. This information should not take the place of medical care and advice from your healthcare provider. Methadone can cause a certain amount of tooth decay but no more than any other opiate.
Use of any drug always carries some risk even medications can produce unwanted side effects. Read more on NSW Health website. These side effects may go away during treatment as your body adjusts to the medicine.
Whether the person is used to taking it.
Get emergency medical help if you have signs of an allergic reaction to methadone. The effects of methadone and buprenorphine can include relief from pain and a feeling of wellbeing but can also cause nausea sleepiness and long term use can have effects on male reproductive health libido and cause sweating and constipation. Tolerancemeaning you might need to take more of the medication for the same pain relief. Methadone has been used to treat heroin addicts for nearly 50 years.