One in ten cannabis users are dependent on the drug, according to some estimates.
Quetiapine is an antipsychotic drug to treat severe mental illness, but it makes people feel sleepy, so has also been used as a sleeping pill – by prescription and illicitly.
A new study has found more than half of those in drug treatment have cognitive impairments – meaning treatment won't work for them.
A new study has looked at why some ice users suffer psychosis and others don't.
Benzodiazepines are used by many people despite their associated risks and harms.
West Australian Labor leader Mark McGowan said his state has the "worst rate of methamphetamine usage in the country". We asked the experts to check the evidence.
Without doubt, crystal methamphetamine, like many drugs (including alcohol) is capable of causing immense harm. But when facts are distorted to create fear and stigma it helps no one.
Regardless of how they are consumed, alcohol and other drugs eventually make their way into the brain via the bloodstream. Once there, they affect how messages are sent through the brain.