Procardia, which contains the active ingredient nifedipine, is a medication used to treat certain types of angina, which is chest pain caused by reduced blood flow to the heart. It is classified as a calcium channel blocking agent, meaning it works by blocking the entry of calcium ions into smooth muscle cells, leading to vasodilation and decreased blood pressure. Procardia is also effective in stabilizing heart rhythm in certain conditions where the heart is beating too fast or irregularly.
Take Procardia as directed by your doctor, with or without food. Do not consume grapefruit or grapefruit juice while using Procardia. Swallow the tablet whole and do not crush, break, or chew it. If you miss a dose, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and resume your usual dosing schedule. Do not take a double dose to make up for a missed one.
Store Procardia at room temperature between 59 and 77 degrees Fahrenheit (15 and 25 degrees Celsius), away from heat, moisture, and light. Keep the medication out of reach of children and pets.
Procardia's active ingredient is nifedipine.
Do NOT use Procardia if:
Contact your doctor or health care provider immediately if you have any questions or concerns about taking Procardia. It's important to let your doctor know about any medical conditions you may have, especially if you are pregnant, planning to become pregnant, or breastfeeding. You should also inform your doctor of any prescription or non-prescription medications, herbal supplements or dietary supplements you are taking or planning to take, as well as any allergies you may have to medications, foods, or other substances.
Procardia may interact with other medications. It is important to let your healthcare provider know if you are taking any other medications, including barbiturates, carbamazepine, rifampin, beta-blockers, cimetidine, cyclosporine, fluconazole, fluoxetine, imatinib, itraconazole, ketanserin, magnesium salts, quinazolines, quinidine, ranitidine, digoxin, hydantoins, lithium, theophylline, and vinca alkaloids. Your doctor will be able to determine if there are any potential interactions between Procardia and your other medications.
It is important to use caution when taking Procardia as it may cause dizziness or lightheadedness. Do not operate heavy machinery or drive until you know how Procardia affects you. It is also important to maintain good dental hygiene while taking Procardia.
If you are pregnant or planning to become pregnant while taking Procardia, consult with your doctor. Your doctor can help you weigh the risks and benefits of taking Procardia during pregnancy. It is not known whether Procardia passes into breast milk. Consult with your doctor if you are breastfeeding or planning to breastfeed.
All medicines may cause side effects, but many people have no, or minor, side effects.
Check with your doctor if any of these most common side effects persist or become bothersome:
Constipation; dizziness; flushing; giddiness; headache; heat sensation; heartburn; lightheadedness; nausea; weakness.
Seek medical attention right away if any of these severe side effects occur:
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); irregular pulse; shortness of breath; swelling of the feet or hands; tender, bleeding, or swollen gums.
This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider.
Written: Laura Jenkins
Reviewed: Cristina Matera, MD