Table 2.

Studies of clinical practice

	Ratio of means of administration IV : IM	Drug of choice	Frequency of use	mean dose in mg (range)	Second injection	Complications / comments
UK 1992[3]	1:1	Diazepam	(Most frequent)	27 (10–80)	26%	1 hypotension
		Haloperidol	▲	22 (10–60)		1 cardiorespitory arrest (60 mg haloperidol + 80 mg DZ)
		Chlorpromazine	I	162 (50–400)		1 tachycardia, 1 hypotension
		Droperidol	I	14 (10–20)	26%
		Paraldehyde	I			1 respiratory distress
		Amytal
		Lorazepam	▼
		Nitrazepam	(Least frequent)
France 1999[10]	0:80	Loxapine	80%	200 mg	6%	2 with acute dystonia
		Droperidol	5%
		Chlorazepate	5%			Mostly people with substance abuse (study in General Emergency Room)
		Cyamemazine			6%
		Diazepam	< 2%
		Sultopride
		Meprobamate