Treatment of Preterm Labor: Calcium Channel Blockers (CCBs)

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What are calcium channel blockers?

A calcium channel blocker is a drug used to block the opening of certain types of blood vessels, which allows for increased flow through them. These include coronary arteries and veins. There are many different classes of these drugs, but they all have one thing in common: They’re designed to prevent or slow down the heartbeats so that it doesn’t overwork itself and cause damage.

How do I use nifedipine?

Nifedipine is a prescription medication used to treat preeclampsia, a condition caused when there’s too much amniotic fluid in the uterus. Nifedipine works by preventing the buildup of amniotic fluid and allowing the baby to grow normally. It may also reduce bleeding during pregnancy. Nifedipine can be taken either before or after delivery of your baby.

Who should not take nifedipine?

People with high blood pressure, diabetes, liver disease, kidney problems or other conditions that could lead to dangerous side effects from medications. If you already have high blood pressure or any of these conditions, taking nifedipine might increase your risk of having a stroke or heart attack. Also avoid taking nifedipine if you’ve had seizures in the past.

Why might nifedipine not work for me?

Although nifedipine is effective in many women, it doesn’t work the same way for everyone. Or, you may develop preeclampsia later in your pregnancy than when you started taking it. This could lead to other complications that may require a C-section.

What are the most common side effects of nifedipine?

Nausea, vomiting, headache, swelling in your hands and feet, trouble breathing, blurred vision and a slow heart rate.

How can I prevent or reduce nausea while taking nifedipine?

Eat dry foods (crackers, toast) before taking nifedipine to prevent nausea and vomiting. Also, only take the medication when you’re able to rest and not have to do anything else.