Medically reviewed by Jessica Swirble, PharmD
Last updated on April 18, 2025
Drug Information | Side Effects | Use & Dosage | Request an Online Prescription
Nifedipine is a prescription medication used to treat high blood pressure (hypertension) and certain types of chest pain (angina).
Nifedipine is prescribed to treat high blood pressure (hypertension) and angina (chest pain).
Nifedipine works by blocking calcium channels in blood vessels and the heart muscle. This causes blood vessels to relax, which helps lower blood pressure and relieve chest pain.
Nifedipine is available as an oral tablet and extended-release tablet.
The dosage and frequency of use depend on the condition being treated, its severity, and how you respond to the medication.
Follow your healthcare provider's instructions regarding dosage and schedule. Do not exceed the prescribed dose or frequency of use without consulting your provider.
Nifedipine is used to manage high blood pressure and angina (chest pain). The effects can be noticeable within a few hours, but it may take several days to achieve optimal symptom reduction.
Continue using nifedipine as prescribed, even if you start feeling better. Regular use according to your prescription is crucial for the management of symptoms.
While nifedipine is primarily used for treating high blood pressure and angina, healthcare providers may prescribe it off-label for other conditions.
Discuss any alternative uses of nifedipine with your healthcare provider.
Nifedipine is available in the following dosage forms:
Nifedipine is a prescription medication. You must have a valid prescription from a licensed healthcare provider to obtain it.
The use of nifedipine can lead to various side effects in some individuals.
Common mild side effects of nifedipine use include:
More severe side effects of nifedipine use can include:
Shortness of breath Swelling of the face, lips, tongue, or throat (angioedema) Chest pain Yellowing of the skin or eyes (jaundice) Fainting
If you experience any severe or concerning side effects while taking nifedipine, contact your healthcare provider right away.
Inform your healthcare provider about any existing medical conditions, allergies, or other medications you are taking before starting treatment with nifedipine. This includes prescription drugs, over-the-counter medications, and dietary supplements, as they may interact with nifedipine.
Tell your provider if you are taking these medications or supplements:
You should also mention medical conditions such as:
If you are pregnant, planning to become pregnant, or breastfeeding, discuss the potential risks and benefits of using nifedipine with your healthcare provider.
Take nifedipine exactly as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment.
Your provider may direct you to avoid grapefruit and grapefruit juice while taking nifedipine, as they can increase the medication's effects, leading to side effects.
Complete the full course of treatment, even if you feel better, to ensure the medication's effectiveness in managing your condition.
In case of a nifedipine overdose, seek medical attention immediately. Symptoms of overdose may include severe dizziness, fainting, rapid heartbeat, or shortness of breath. If you suspect an overdose, contact the poison control helpline at 1-800-222-1222 or call emergency services.
Nifedipine is available in the following forms:
The typical starting dose of nifedipine varies depending on the condition being treated, the severity of symptoms, and individual patient factors. It is crucial to follow your healthcare provider's instructions regarding dosage and administration.
For high blood pressure:
For angina:
The dosage may be adjusted based on the response and tolerance to the medication. Your healthcare provider will determine the most appropriate dose based on your medical history and your response to the medication.
Nifedipine should be taken as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment without consulting your provider.
If you have any questions about your dosage or need adjustments, contact your healthcare provider for guidance. If you want to talk to a provider right away, consider scheduling an online doctor appointment through a telehealth platform like Sesame.
If you miss a dose of nifedipine, take it as soon as you remember unless it is close to the time for your next scheduled dose. In that case, skip the missed dose and continue your regular dosing schedule. Do not double the dose to make up for a missed one.
Take nifedipine around the same time every day to maintain a consistent amount of medication in your body.
Continue taking nifedipine as prescribed by your healthcare provider, even if you start feeling better. It's important to keep taking the medication as directed to manage your condition effectively.
Do not suddenly stop taking nifedipine; this can cause your blood pressure to rise or your angina to worsen.
If you have any concerns or questions about your medication, discuss them with your healthcare provider for medical advice and recommendations.
Store nifedipine according to the instructions provided by your healthcare provider or pharmacist. Keep it at room temperature, away from light and moisture. Ensure the container is tightly closed and out of reach of children.
Do not use expired medication or medications that appear damaged or discolored. If you have any questions about storage, consult your healthcare provider or pharmacist for guidance.