Like all medicines, verapamil natural cause unwanted clinical effects, although not everyone gets them. Verapamil inhibits CYP3A4 metabolism and thereby can increase the serum concentrations of cyclosporine. Verapamil significantly counteracted the effects of quinidine on AV conduction.
Possible side effects of Cardiolen include:
Cardiolen is used to treat diseases such as: Angina, Arrhythmia, Bipolar Disorder, Cluster Headaches, High Blood Pressure, Idiopathic Hypertrophic Subaortic Stenosis, Migraine Prevention, Nocturnal Leg Cramps, Supraventricular Tachycardia.
Dosage may be titrated upward until blood pressure is controlled or to a maximum total daily dose of 5 mg.