I've been finding myself craving cathinone stims the past few days.
Unsolicited advice but if someone is really struggling with this particular issue, bupropion would be something worth considering.
It's an antidepressant and it can work quite well for addressing the neurochemical aspect of addiction, but it also happens to be a cathinone derivative itself so aside from how it helps with substance use disorders it's also just a way of legally microdosing a government-approved, pharmaceutical grade Khat substitute.
Bupropion often comes with significant side effects so it's no silver bullet but I think would hit the mark for some people.