How do you treat Raynaud's in patients with baseline low blood pressure?  

These can be very challenging patients. I tend to try 2.5 mg amlodipine at night which they can often tolerate. If there is a component of anxiety or stress/emotion to the Raynaud's, particularly in primary Raynaud's, fluoxetine can be useful. Some patients can tolerate half-dose sildenafil (10mg TI...