Table 2.

Maximum skin test concentrations of drugs used for anesthetic induction (from Brockow [1])

Drug (concentration)	Skin prick test (dilution factor)	Intradermal test (dilution factor)
Midazolam (5 mg/ml)	5 mg/ml (pure)	0.5 mg/ml (1:10)
Propofol (10 mg/ml)	10 mg/ml (pure)	1 mg/ml (1:10)
Ketamine (10 mg/ml)	10 mg/ml (pure)	1 mg/ml (1:10)
Thiopental (25 mg/ml)	25 mg/ml (pure)	2.5 mg/ml (1:10)
Etomidate (2 mg/ml)	2 mg/ml (pure)	0.2 mg/ml (1:10)
Morphine (10 mg/ml)	1 mg/ml (1:10)	0.01 mg/ml (1:1000)
Fentanyl (0.05 mg/ml)	0.05 mg/ml (pure)	0.005 mg/ml (1:10)
Remifentanil (0.05 mg/ml)	0.05 mg/ml (pure)	0.005 mg/ml (1:10)
Sufentanil (0.005 mg/ml)	0.005 mg/ml (pure)	0.0005 mg/ml (1:10)
Alfentanil (0.5 mg/ml)	0.5 mg/ml (pure)	0.05 mg/ml (1:10)
Atracurium (10 mg/ml)	1 mg/ml (1:10)	0.01 mg/ml (1:1000)
Cisatracurium (2 mg/ml)	2 mg/ml (pure)	0.02 mg/ml (1:100)
Rocuronium (10 mg/ml)	10 mg/ml (pure)	0.05 mg/ml (1:200)
Mivacurium (2 mg/ml)	0.2 mg/ml (1:10)	0.002 mg/ml (1:1000)
Pancuronium (2 mg/ml)	2 mg/ml (pure)	0.2 mg/ml (1:10)
Vecuronium (4 mg/ml)	4 mg/ml (pure)	0.4 mg/ml (1:10)
Suxamethonium (50 mg/ml)	10 mg/ml (1:5)	0.1 mg/ml (1:500)