Table 1.

The 10 adverse events included in this study as manifestations of 5983 drug–drug-event associations

Adverse event	Description
Bradycardia	Heart rate that is slower than normal
Cardiac arrhythmia	An irregular heart beat—too slow and/or too fast
Hyperkalemia	Blood potassium level that is higher than normal
Hypoglycemia	Blood sugar level that is lower than normal
Long QT syndrome	A heart rate disorder that causes fast irregular heart rate
Neutropenia	Abnormally low neutrophil count (a type of white blood cell)
Pancytopenia	Abnormally low red blood cell, white blood cell and platelet count
Parkinsonian symptoms	A collection of symptoms including muscle tremors, muscle stiffness, slow movements, impaired balance and dementia
Rhabdomyolysis	A disorder that causes muscle tissue to breakdown, causing muscle pain and stiffness
Serotonin syndrome	Blood serotonin level that is higher than normal