Nifedine 20 mg Tablet SR

Nifedine 20 mg Tablet SR contains 20 mg of nifedipine in each sustained-release tablet. Nifedipine is a calcium channel blocker used to help lower high blood pressure and to reduce chest pain (angina) by relaxing blood vessels and improving blood flow. Because it is an SR tablet, Nifedine 20 mg Tablet SR releases the medicine gradually over time. It is a prescription heart and blood pressure medicine that a clinician may choose when steady blood-pressure control is needed.

How it works: Nifedipine blocks calcium from entering the muscle cells in blood vessel walls, which helps the vessels relax and widen. In the sustained-release tablet form, Nifededine 20 mg Tablet SR gives this effect gradually so blood pressure and chest-pain control can be more even over the dosing interval.

Nifedine 20 mg Tablet SR is a higher-strength sustained-release nifedipine tablet, so it is meant for people whose doctor has already assessed that this dose is appropriate. Compared with lower-strength nifedipine tablets, the 20 mg SR version provides a stronger amount per tablet while still releasing medicine slowly, which may help with smoother control and fewer peaks and dips. A doctor may choose Nifedine 20 mg Tablet SR when a lower dose is not enough or when a once- or twice-daily sustained-release plan fits the treatment goal.

• High blood pressure (hypertension)
• Angina (chest pain)
• Blood vessel relaxation for cardiovascular treatment
• Long-acting blood pressure control as prescribed by a doctor

• Swallow Nifedine 20 mg Tablet SR whole with water; do not crush, chew, split, or break it.
• Take it exactly at the same time each day if your prescriber has told you to take it regularly.
• It may be taken with or without food unless your doctor gives different instructions.
• Do not take an extra dose to make up for a missed dose unless your prescriber tells you to do so.
• Avoid grapefruit or grapefruit juice unless your doctor says it is okay, because it can increase nifedipine levels.
• If the tablet looks like a shell or ghost tablet in your stool, that can happen with some sustained-release tablets and is usually expected.

Each Nifedine 20 mg Tablet SR provides 20 mg of nifedipine in a sustained-release tablet. The dose and how often it is taken depend on the condition being treated and how you respond; for this strength, a clinician may prescribe it once or twice daily, but only your doctor should set the schedule. Do not exceed the daily amount your prescriber recommends; the exact maximum for you depends on your medical situation and other medicines.

Do not change your dose or stop the medicine without speaking to your doctor.

Common side effects of Nifedipine may include:

• Headache
• Dizziness
• Flushing
• Swelling of the ankles or feet
• Nausea
• Tiredness
• Palpitations or feeling your heartbeat more strongly

• Nifedine 20 mg Tablet SR is a higher-strength tablet, so it should be used only under a doctor’s supervision.
• It can lower blood pressure and may cause dizziness, especially when standing up quickly.
• Avoid grapefruit products unless your prescriber approves them.
• Use caution with alcohol, which can increase dizziness and low blood pressure.
• Tell your doctor if you have heart failure, very low blood pressure, a recent heart attack, or severe aortic stenosis.
• Do not use with nitrates or other blood-pressure medicines unless your clinician has reviewed the combination.
• Be careful driving or using machinery until you know how Nifedine 20 mg Tablet SR affects you.

• Grapefruit and grapefruit juice
• Nitrates such as nitroglycerin
• Other blood pressure medicines, including beta blockers and diuretics
• Certain antifungals and antibiotics that can raise nifedipine levels
• Rifampin, which can reduce nifedipine levels

Store Nifedine 20 mg Tablet SR in the original strip or box at room temperature, away from moisture and excess heat, and keep it out of reach of children.