Country: Australia
Language: English
Source: Department of Health (Therapeutic Goods Administration)
Methadone hydrochloride
Aspen Pharma Pty Ltd
Medicine Registered
SIGMA METHADONE SYRUP- Consumer Medicine Information SIGMA METHADONE SYRUP _methadone hydrochloride _ CONSUMER MEDICINE INFORMATION (CMI) WHAT IS IN THIS LEAFLET? Please read this leaflet carefully before you take Methadone Syrup. This leaflet answers some common questions about Methadone Syrup. It does not contain all of the available information. It does not take the place of talking to your doctor or pharmacist. All medicines have risks and benefits. Your doctor has weighed the expected benefits of you taking Methadone Syrup against the risks this medicine could have for you. ASK YOUR DOCTOR OR PHARMACIST IF YOU HAVE ANY CONCERNS ABOUT TAKING THIS MEDICINE. KEEP THIS LEAFLET WITH THE MEDICINE. You may need to read it again. WHAT METHADONE SYRUP IS USED FOR Methadone hydrochloride belongs to a group of medicines called opioid analgesics. Methadone Syrup is used for the treatment of severe pain. Your doctor may have prescribed Methadone Syrup for another reason. People who take Methadone Syrup for a long time to treat their pain rarely become addicted to it. However, with time, your body will become used to taking Methadone Syrup and you may experience symptoms due to withdrawal if you suddenly stop taking this medicine. These symptoms may include body aches, diarrhoea, nervousness, shivering, nausea, sleep disturbance, sweating, weakness and fever. If you have not done so already, you should discuss this further with your doctor. BEFORE YOU TAKE IT _ _ _DO NOT TAKE IF: _ You must not take Methadone Syrup if: you have ever had an allergic reaction to methadone hydrochloride (THE ACTIVE INGREDIENT IN METHADONE SYRUP); any other opioid d Read the complete document
SIGMA METHADONE SYRUP- Product Information Page 1 of 10 PRODUCT INFORMATION SIGMA METHADONE SYRUP NAME OF THE MEDICINE: Methadone hydrochloride The chemical name for methadone hydrochloride is (6_RS_)6-(Dimethylamino)-4,4- diphenylheptan-3-one hydrochloride , and the chemical structure is: Molecular formula: C 21 H 27 NO,HCl Relative molecular mass: 345.9 CAS Number: 1095-90-5 DESCRIPTION Methadone hydrochloride is a synthetic opioid analgesic with the general properties of morphine. Methadone is a racemic mixture and levo-methadone is the active isomer. It occurs as odourless, colourless crystals or white crystalline powder. It is soluble in water, freely soluble in alcohol and chloroform; practically insoluble in ether and in glycerol. Methadone Syrup is an oral solution of 5mg/mL methadone hydrochloride. Methadone Syrup also contains the following excipients: caramel, ethanol, glycerol, sodium benzoate, sorbitol solution (70%) (noncrystallising), water-purified and Flavour pharmaceutical 503978A. PHARMACOLOGY The pharmacological actions of methadone are qualitatively similar to those of morphine. Significant quantitative differences are its effective analgesic activity after administration by the oral route and its tendency to show persistent effects with repeated administration. _PHARMACODYNAMIC EFFECTS _ The combination of opioid agonism and N-methyl-d-asparate (NMDA) antagonism by methadone produces an additive analgesic response while limiting opioid tolerance. PHARMACOKINETICS _ABSORPTION _ _ _ Methadone hydrochloride is readily absorbed after Read the complete document