The pharmaceutical industry should have nothing to fear from a harmless plant. One is a business worth nearly countless billions of dollars (and can jack up the price of their products by 5,556 percent on a whim if they feel like it), while the other is a sweet-smelling bud best known for making reggae sound better and naps become more frequent. But big pharma is definitely scared of weed.

According to a new survey from the Centre for Addictions Research of British Columbia, Canada, 87 percent of adult medical cannabis users polled had stopped using prescription medicine and in some cases stopped drinking booze too. The study polled 473 adult medical users in total.

87 percent said they had either given up prescription medicine, alcohol, or other drugs in favor of getting blazed on the herb. Those under forty were deemed more likely to give up all the pleasures of pills and alcohol in favor of consuming marijuana. 52 percent of those polled said they’ve replaced alcohol with cannabis as of late, while 32 percent said they brought in weed as a pinch hitter to get themselves off of street drugs.

The survey seems to reveal a pattern of medical cannabis users ditching more chemical drugs in favor of the virtually side-effect-free cannabis.

“The finding that cannabis was substituted for all three classes of substances suggests,” reads the study, “that the medical use of cannabis may play a harm reduction role in the context of use of these substances, and may have implications for abstinence-based substance use treatment approaches. Further research should seek to differentiate between biomedical substitution for prescription pharmaceuticals and psychoactive drug substitution, and to elucidate the mechanisms behind both.”