Drug General Information (ID: DDIVUXY3PZ)
Drug Name			Arsenic trioxide		Drug Info		Polyethylene glycol (3350 with electrolytes)		Drug Info
Drug Type		Small molecule				Small molecule
Therapeutic Class		Antineoplastics				Laxatives
Structure

Mechanism of Arsenic trioxide-Polyethylene glycol (3350 with electrolytes) Interaction (Severity Level: Major)
Increased risk of ventricular arrhythmias Click to Show/Hide Mechanism Graph
Drug Name		Arsenic trioxide				Polyethylene glycol (3350 with electrolytes)
Mechanism		Prolong QT interval				Electrolyte disturbances
Key Mechanism Factor 1
		Factor Name		Ventricular arrhythmias
		Factor Description		Ventricular arrhythmias are abnormal heart rhythms that cause your heart's lower chambers to pump blood instead of pumping it. This can limit or stop your heart from supplying blood to your body. While some of these arrhythmias are harmless and do not cause symptoms, others can have serious, even fatal, effects on your body.
Mechanism Description		Increased risk of ventricular arrhythmias by the combination of Arsenic trioxide and Polyethylene glycol (3350 with electrolytes)

Recommended Action
Management		Caution is advised when bowel cleansing preparations are prescribed in patients treated with drugs that prolong the QT interval. Monitoring of baseline and posttreatment serum electrolyte levels is recommended, particularly in the elderly. Patients should be instructed to drink plenty of clear liquids before, during, and after the bowel preparation process.

References
1	Hill AG, Parry BR "Hypokalaemia following bowel cleansing with sodium phosphate." N Z Med J 109 (1996): 347. [PMID: 8862361]
2	Product Information. Suclear (polyethylene glycol 3350 with electrolytes). Braintree Laboratories, Braintree, MA.
3	Product Information. Suprep Bowel Prep Kit (magnesium/potassium/sodium sulfates). Braintree Laboratories, Braintree, MA.