Grapefruit may interact with ivabradine and lead to unwanted side effects. Avoid the use of grapefruit products.
Avoid taking an herbal supplement containing St. John's wort.
Avoid driving or hazardous activity until you know how  ivabradine will affect you. Your reactions could be impaired.
Avoid sudden changes in the intensity of light around you, such as going outside in sunlight after being in a dark place. Allow your eyes time to adjust slowly to the light.
