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Raynaud’s Phenomenon

Symptoms and Treatments

 Treatment Action Most common side effects

Calcium Channel Blockers


Nifedipine (Adalat®)
Amlodopine (Norvasc®)
Diltiazem (Cardizem®)
Felodipine (Plendil®)

Relax blood vessels Flushing, headache, dizziness, constipation, low blood pressure, swelling in the legs, palpitations.

Angiotensin II Receptor Antagonists

Losartan (Cozaar®)

Block constriction of blood vessels Headache, respiratory tract infection, dizziness, tiredness, dry cough.

Beta-adrenergic Blockers


Relax blood vessels

Dizziness, headache, drowsiness, tiredness, light-headedness, palpitations, nausea.




Unclear Nausea, dizziness, headache, vomiting.

Scleroderma Medications Guide (Canada)