[esperent]

Diamorphine is already very safe, has few side effects, and is commonly used as a stronger version of morphine in cancer treatment.

What is diamorphine? Well, it's the scientific name for heroin. However, it differs from the drug in being far purer, being used in a clinical setting, and with carefully controlled dosages. Other than that, it's identical to heroin.

This means we can conclude that the negative aspects of heroin come from impurities, addiction, mental health issues of the users, unsafe injection practices, and unknown strengths resulting in overdose.

You can, with access to medical grade heroin, use it occasionally with no negative side effects. We know this because it is used daily in hospitals around the world.