From a libertarian standpoint, I would argue for everyone's right to do drugs.
Or from the negative (ex negativo), who has the right to prohibit it legitimately? Definitely no one!
But would I recommend someone personally to take drugs? Hell no! Stay away from it, especially if you already have some issues with it.
Check out also my new post: https://steemit.com/economics/@llange/the-original-parable-of-the-broken-window-by-frederic-bastiat-1850