Nifedipine is used to treat high blood pressure. It relaxes your blood vessels so your heart does not have to pump as hard. Nifedipine increases the supply of blood and oxygen to the heart to control chest pain (angina). If taken regularly, nifedipine controls chest pain, but it does not stop chest pain once it starts. Your doctor may give you a different medication to take when you have chest pain.
More about Nifedipine
Nifedipine is a calcium channel blocker and works to lower blood pressure by interfering with the normal role of calcium in the heart and blood vessels. By blocking calcium’s entry into the heart muscle and blood vessels, nifedipine causes blood vessels to relax or dilate and contraction of the heart to slow. Thus, blood pressure is lowered and your heart does not have to pump as hard. It increases the supply of blood and oxygen to the heart to control chest pain (angina).
How does it work?
This medicine is prescribed for those who are suffering from high blood pressure because it partially blocks the calcium channels in the cells of the heart and blood vessels. These calcium channels are small energy gates across cell membranes that convey the electrical signals used by muscles to contract and relax. It’s also partially blocking the calcium channels within the cell membranes of sperm. This affects sperm function rather than production. A man taking nifedipine produces a normal amount of sperm, and the sperm appear functional when viewed through a microscope. But in vitro tests show that these sperm cannot fertilize an egg.
Before taking nifedipine, tell your doctor if you:
- are pregnant or planning to become pregnant;
- suffer from liver problems;
- suffer from diabetes;
- suffer from porphyria;
- have suffered from a heart attack less than one month ago;
- have a blockage in the gut or suffer from inflammatory bowel disease.
Side effects of Nifedipine
If you have any of the following serious side effects, stop taking nifedipine and contact your doctor:
- difficulty breathing, closing of the throat; swelling of the lips, tongue, or face;
- unusually fast or slow heartbeats;
- severe dizziness or fainting;
- swelling of the legs or ankles.
Other, less serious side effects include:
- increased urination;
- headache, fatigue, or tiredness;
- vivid or abnormal dreams;
- nausea or constipation.
Side effects other than those listed here may also occur. So please contact to your doctor.
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