Which drug makes your pupils larger?

heroin
cocaine
morphine
codeine
Dilated pupils typically occur as an effect of taking stimulant drugs such as cocaine and amphetamine, while opiates such as heroin, morphine and codeine constrict the pupils.
Przemek
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Very interesting!
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Answers by country

heroin
cocaine
morphine
codeine
answers
flagPakistan
9%
79%
4%
4%
43
flagFrance
23%
69%
7%
0%
13
flagthe Netherlands
28%
66%
4%
0%
21
flagCanada
6%
65%
17%
10%
29
flagSwitzerland
15%
63%
10%
10%
38
flagRepublic of Ireland
16%
63%
13%
6%
30
flagthe United Kingdom
26%
61%
8%
3%
136
flagGermany
19%
57%
8%
14%
398
flagPoland
28%
53%
9%
7%
19274
flagthe United States
19%
53%
15%
9%
238
flagthe Philippines
17%
52%
17%
5%
17
flagItaly
33%
50%
5%
11%
18
flagAustralia
27%
48%
10%
12%
47
flagEgypt
20%
46%
26%
6%
15
flagAustria
19%
45%
17%
17%
51
flagGreece
33%
44%
0%
22%
18
flagUnknown
18%
43%
12%
25%
16
flagNigeria
13%
40%
33%
13%
15
flagIndia
17%
38%
30%
11%
146
flagNorway
46%
38%
15%
0%
13