Table 1.

Pharmacological cognitive enhancement drug use among Norwegian students.

		T1 (N = 9370)		T2 (N = 4783)
Variable		n	%	n	%
Knowledge of stimulant PCE drugs		4077	43.5
Used stimulant PCE drugs to augment cognitive abilities		193	2.1	170	3.6
Source of druga	Pharmacy	57	29.5
	Family/friends	98	50.8
	Acquaintances	42	21.8
	Online	14	7.3
	On the street	5	2.6
	In a store/shop	14	7.3
	Abroad	12	6.2
	Other	9	4.7
Frequency of stimulant PCE drug use past six monthsb	Not used			81	47.6
	1–4 times			46	27.1
	5–50 times			26	15.3
	> 50 times			17	10.0
Knowledge of depressant PCE drugs to ease nerves		2950	31.5
Used depressant PCE drugs prior to exams/presentations		139	1.5	158	3.3
Source of druga	Pharmacy	86	61.9
	Family/friends	30	21.6
	Acquaintances	25	18.0
	Online	3	2.2
	On the street	3	2.2
	In a store/shop	3	2.2
	Abroad	3	2.2
	Other	9	6.5
Frequency of depressant PCE drug use past six monthsb	Not used			89	56.3
	1–4 times			48	30.4
	5–50 times			17	10.8
	> 50 times			4	2.5

Note. PCE = pharmacological cognitive enhancement.

^a Percentages are based on total number of respondents having used enhancement or depressant drugs, 193 and 139, respectively. ^bPercentages are based on total number of respondents having used enhancement or depressant drugs at T2, 170 and 158, respectively.