I just noticed that we posted replies (above) at exactly the same time and I was about to post the "great minds think alike" thing then I realized that you'd be insulted. Here is your logic:
Psychotropic drugs can cause harm. Therefore, these drugs did cause harm.
If we apply this thinking to another area where you may be less biased we get
People eating peanuts can die. Therefore, peanuts caused the death.
I got another one I remember from college psychology 101..
- the incidences of rape increase during summer months
- ice cream consumption increases during summer months
therefore the increase demand for ice cream is caused by the rapes? The rapist might be tired and hungry a student speculated.
Oh.. just in case. I wasn't that student. It took me a long time but I didn't say anything until I figured out days later that there was no correlation.. it was the weather.