TABLE 1

Premedication Used to Reduce Brown Fat Uptake

Name of medication	Route of administration	Recommended dose	Maximum dose	Time of administration	Comments and precautions
Propranolol (64–67).	Oral	1 mg/kg usually 20–40 mg	40 mg	60–90 min before ¹⁸F-FDG injection	Recommended for patients older than 10 y
Fentanyl (63,64,66)	Intravenous	1.0 μg/kg for patients less than 25 kg	50 μg	10 min before ¹⁸F-FDG injection	Should be injected under the supervision and monitoring of a physician or a trained nurse according to the institutional sedation policy
		0.75 μg/kg for patients less than 25 kg
Diazepam (63,69)	Oral	0.080–0.096 mg/kg	7.5 mg	30–60 min before ¹⁸F-FDG injection	Especially useful for anxious patients