Verapamil warnings. This medicine controls high blood pressure, arrhythmia, and angina, but it does not cure these conditions. You should continue to take Verapamil even if you feel well. Before taking verapamil, tell your doctor if you have or have ever had:
- any condition that causes food to move through your digestive system more slowly
- myasthenia gravis (a condition that causes certain muscles to weaken)
- heart failure
- heart, liver, or kidney disease
- muscular dystrophy (an inherited disease that causes weakening of the muscles)
You should also tell your doctor you are taking Verapamil before any type of surgery, including dental procedures.