Which of the following drugs have the opposite effect to the others?
Heroin
Cocaine
Mescaline
Amphetamine
Heroin is a depressant - introduces euphoric sedation (like other opiates, including opium). The other mentioned drugs are stimulant stimulants.
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Answers by country
Heroin
Cocaine
Mescaline
Amphetamine
answers
France
10
Australia
14
Pakistan
15
Greece
16
the United Kingdom
40
the United States
41
Austria
32
India
27
Germany
215
Poland
7621
Switzerland
27