Procardia (nifedipine) is a calcium channel blocker used to treat high blood pressure and chest pain.

It relaxes blood vessels so blood flows easier and the heart pumps with less strain. You might see it as immediate‑release tablets or as extended‑release capsules—know the difference because dosing and side effects differ.

Most people take Procardia for hypertension or angina. Doctors choose nifedipine when they want a strong vessel‑relaxing effect. Extended‑release forms are common for daily control; short‑acting pills may be used for sudden chest pain but are less preferred because they can cause rapid blood pressure drops.

How to take it matters. Take extended‑release nifedipine once daily, usually with a glass of water. Don’t crush or chew long‑acting capsules. For immediate‑release tablets follow your doctor’s schedule closely. If you miss a dose, take it when you remember unless it’s near the next dose—don’t double up.

Watch for interactions. Grapefruit juice raises nifedipine levels and can make side effects worse. Other blood pressure medicines, certain antibiotics, and antifungal drugs can also change how it works. Tell your doctor about all prescriptions and supplements.

Common side effects include dizziness, flushing, headache, and swelling in the ankles. Those are usually mild and get better as your body adjusts. Serious signs like fainting, very fast heartbeat, chest pain, or severe shortness of breath need immediate medical care. If your blood pressure falls too low you can feel weak or confused.

Special groups need extra caution. People with severe heart problems, certain liver conditions, or very low blood pressure may not be suitable candidates. Pregnant or breastfeeding people must discuss risks and benefits with a clinician. Older adults can be more sensitive to dizziness and falls.

If you start Procardia, expect routine follow‑ups. Your doctor will check blood pressure, heart rate, and ask about side effects. They may adjust the dose or switch to another calcium channel blocker like amlodipine if needed. Lifestyle steps—diet, exercise, limiting salt, and stopping smoking—boost the drug’s effect.

Practical tips: take it at the same time each day, avoid grapefruit, stand up slowly from sitting to reduce dizziness, and keep a log of your blood pressure at home. Store medicine in a cool, dry place away from children.

Questions to ask your prescriber: Why this formulation? What dose is right for me? What should trigger a call to your office? Knowing these answers makes treatment safer and easier.

We have more guides on blood pressure meds, alternatives like amlodipine, and how to manage side effects. Browse related articles to learn comparisons, costs, and practical tips for daily use.

If you ever feel unusually tired, dizzy, or notice swelling that worsens quickly, call your provider. Don’t stop Procardia suddenly without medical advice because blood pressure can rebound. If you plan surgery or dental work, tell the surgeon you take nifedipine. Keep a current list of medicines and share it with any new clinician. Want help comparing Procardia with other options? Check our comparison articles and patient guides for clear, practical side‑by‑side info.