Find out what treatments are available for Raynaud's
Sildenafil tablets are usually taken three times a day to improve your ability to exercise.
You may need to spend a day in hospital when you start treatment, before returning home and carrying on taking the medicine. How long you can take sildenafil for will depend on your condition. If at any time your condition gets worse, you may be given additional treatment as well as, or instead of, sildenafil.
Sildenafil may not be suitable for you if you: