MedDataToolNifedipine is a medication used to treat conditions like vasospastic angina, chronic stable angina, and high blood pressure. It works by relaxing blood vessels, which helps to lower blood pressure and improve blood flow to the heart. You usually take it as an extended-release tablet once a day, starting with a dose of 30 or 60 mg, and the maximum recommended dose is 120 mg. It's important to know that nifedipine can cause low blood pressure, especially when starting the medication or increasing the dose, so monitoring is essential. Additionally, you should avoid taking nifedipine with grapefruit juice, as it can affect how the medication works.
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Uses
- Vasospastic Angina.
- Chronic Stable Angina.
- Hypertension.
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Dosage
Start with 30 or 60 mg once daily.
Swallow tablets whole; do not chew or divide.
Adjust dose based on patient needs.
Monitor blood pressure closely during dose changes.
Maximum recommended dose is 120 mg.
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Side effects
Common
EdemaheadachefatiguedizzinessconstipationnauseaIncreased angina
Serious
myocardial infarctiongastrointestinal obstruction
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Warnings
⚠ Important warnings
- Risk of excessive hypotension, especially with beta blockers.
- Increased angina or heart attack may occur.
- Taper beta blockers before starting nifedipine.
- Rare cases of gastrointestinal obstruction reported.
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Drug interactions
- Beta blockersincreased risk of hypotensionMonitor
- Grapefruit juiceavoid due to interactions.Avoid
Ask about this drug
Answers pulled from the FDA label only.
Medical Disclaimer: This content is provided for informational and educational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider before taking any medication.
Data Source: Publicly available drug labeling information from the U.S. Food and Drug Administration (FDA).
Data Source: Publicly available drug labeling information from the U.S. Food and Drug Administration (FDA).