Table 1.

Comparison of contraindications and precautions for use associated with anticholinergic agents and glucagon used as premedications for gastrointestinal endoscopy

	Glucagon	Anticholinergic
Contraindications	Patients with suspected pheochromocytoma	Patients with haemorrhagic colitis
		Patients with glaucoma
	Patients with a history of hypersensitivity to this drug	Patients with impaired micturition due to prostatic hypertrophy
		Patients with serious heart disease
		Patients with paralytic ileus
		Patients with a history of hypersensitivity to this drug
		Patients with bacterial diarrhoea (relative contraindication)
Precautions with use	Patients with an insulinoma	Patients with prostatic hypertrophy
	Elderly patients with known heart disease	Patients with congestive heart failure
	Diabetic patients	Patients with cardiac arrhythmias
	Patients with hepatic disease associated with impaired glucose release, such as cirrhosis	Patients with ulcerative colitis
		Patients with hyperthyroidism
		Patients in high temperature environments