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A member asked:
I've been given nifedipine for raynauds. how does this work. i've been told it can cause dizziness. i have menieres also?
3 doctors weighed in across 2 answers
It dilates arteries: Nifedipine relaxes the smooth muscle of the walls of arteries. As a result, arteries dilate. This is how Nifedipine lowers blood pressure. In raynaud's the periperal (hands and feet) arteries are the most constricted, and hopefully can be made to allow more blood flow.
Answered 4/24/2015
5.2k views
Vasodilator: Raynaud's is due to spasm of small blood vessels, usually on cold exposure. Nifedipine works by causing the small arteries to dilate. That may cause a fall in blood pressure, leading to dizziness due to not enough blood going to the brain, especially on first standing up. People who have low blood pressure to begin with may not tolerate nifedipine.
Answered 6/30/2014
5.2k views
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