How it is used

 

Morphine is most generally available as morphine sulphate tablets in various strengths from 10mg to 200mg, or as capsules, and may be taken orally. These can also be processed for use by injecting subcutaneously, intramuscularly, or intravenously; the last is the route preferred by those who are dependent on morphine.

Codeine is usually taken orally but can be injected intramuscularly or subcutaneously. The intravenous route is usually not used as reactions such as facial swelling, pulmonary edema and convulsions can occur.

Homebake is made by converting codeine-based pharmaceuticals into morphine. It is either sold as a liquid ready for injection or as crystals which are dissolved and injected.

Pethidine can be taken orally, injected, and sniffed. It is unknown if smoking is possible.

Heroin is fairly rare and expensive in New Zealand and, when available, is usually white or off white powder. Most heroin in NZ originates in SE Asia. Heroin is most commonly injected into a vein. It can also be smoked ('chasing the dragon') or snorted.

Opium from poppies can be smoked.