
In the laboratory, morphine sulphate capsules were prepared using both a cold and lukewarm preparation technique, two contact and stirring durations (1 min and 20 s) and 4 different filters (cotton filter, Sterifilt, Sterifilt+ and a wheel filter). Our objective was to find “good preparation practices” for slow release morphine sulphate capsules, namely preparation methods that reduce harm, that are evidence-based and acceptable to PWID.

This is particularly true for pharmaceutical drugs that are not meant to be injected.

It is not always easy to advise people who inject drugs (PWID) on how to prepare their drugs in a way that is associated with reduced harm.
