Plendil is primarily used to treat hypertension (high blood pressure) and to prevent stable angina (chest pain). By maintaining optimal blood pressure levels, it significantly reduces the risk of life-threatening events such as strokes and myocardial infarctions. In Tanzania and across Africa, where the prevalence of hypertension is rising, Plendil serves as a reliable daily treatment to protect heart health and improve the quality of life for patients with chronic vascular conditions.
Available Product Formulations
Plendil is available in extended-release tablet forms to ensure consistent blood levels over 24 hours:
- Plendil 5mg: Extended-release tablets containing 5mg of Felodipine.
- Plendil 10mg: Extended-release tablets containing 10mg of Felodipine.
Uses
The main applications for Plendil include:
- Hypertension Management: Long-term control of high blood pressure, either alone or in combination with other anti-hypertensives.
- Angina Pectoris: Treatment of stable angina by reducing the frequency and severity of chest pain attacks.
- Cardiovascular Protection: Lowering systemic vascular resistance to protect the heart and kidneys from pressure-related damage.
How to Use
Plendil must be taken consistently to be effective.
- Dosage: The typical starting dose is 5mg once daily. Your doctor may increase this to 10mg once daily based on your blood pressure response.
- Duration: This is a long-term maintenance medication. It should be taken indefinitely unless otherwise directed by a healthcare professional.
- Administration: Tablets must be swallowed whole with water. Do not crush or chew them, as this destroys the extended-release mechanism.
Side Effects
Common side effects may include flushing, headache, or swelling of the ankles (edema). Some patients may experience dizziness or a rapid heartbeat during the initial days of treatment. If these symptoms persist, worsen, or if you develop swollen gums (gingival hyperplasia), consult your healthcare provider immediately.
Interactions
Plendil interacts significantly with certain foods and medications:
- Grapefruit Juice: Do not take Plendil with grapefruit juice, as it significantly increases the drug's concentration in the blood, raising the risk of severe side effects.
- CYP3A4 Inhibitors/Inducers: Medications like ketoconazole, erythromycin, or carbamazepine can alter how your body processes Felodipine.
- Food: It should be taken on an empty stomach or after a light meal not high in fat or carbohydrates for optimal absorption.
Warnings
Key safety warnings for Plendil users:
- Liver Function: Patients with impaired liver function may require a lower dose, as Felodipine is processed by the liver.
- Heart Conditions: Use with caution if you have specific heart valve issues or severe heart failure.
- Pregnancy: Plendil is generally not recommended during pregnancy or breastfeeding; consult a doctor for safer alternatives.
- Dizziness: It may cause dizziness; avoid driving or operating heavy machinery until you know how the medication affects you.
A Summary Table of Important Information
| Detail |
Information |
| Active Ingredient |
Felodipine |
| Dosage Frequency |
Once daily, preferably in the morning |
| Starting Time |
Daily, at the same time each day |
| Duration of Use |
Chronic / Long-term |
| Common Side Effects |
Ankle swelling, flushing, headache |
| Major Warning |
Avoid Grapefruit Juice; Do not crush tablets |
How Plendil Works
Felodipine is a member of the dihydropyridine class of calcium channel blockers. It works by selectively inhibiting the transmembrane influx of calcium ions into the smooth muscle cells of the peripheral resistance arteries. By blocking these calcium channels, Felodipine prevents the contraction of vascular smooth muscle, leading to vasodilation. This reduction in peripheral vascular resistance directly lowers systemic blood pressure. Because of its high vascular selectivity, Plendil has minimal effects on cardiac conduction or contractility at therapeutic doses, making it an effective vasodilator that does not significantly suppress heart function.
