# Simvastatin in Nigeria

- Source: https://ogbogwu.com/drugs/simvastatin/
- Drug class: HMG-CoA reductase inhibitor (statin) (Cholesterol)
- Also known as: Zocor, Simvor, Simcard
- Prescription required: yes
- On the WHO Model List of Essential Medicines
- Last updated: July 2026

## Price in Nigeria

Simvastatin prices in Nigeria vary by brand, strength, and where you buy it. Confirm the current price with a licensed pharmacy, and always check the product is NAFDAC-registered before you pay.

## What is Simvastatin?

Simvastatin is one of the oldest and most affordable statins, and it remains widely used in Nigeria as a budget-friendly way to lower cholesterol and reduce the risk of heart attack and stroke. It is available as the original brand Zocor (Merck/MSD) and, more commonly, as inexpensive generics such as Simvor and Simcard. For people who need modest cholesterol lowering and want to keep the long-term cost down, simvastatin is often the practical choice.

Simvastatin works like every statin — by blocking HMG-CoA reductase, the liver enzyme that makes cholesterol — which lowers 'bad' LDL cholesterol and helps protect the arteries. Two things set it apart from the newer statins. First, it is best taken in the evening, because the body makes most of its cholesterol overnight and simvastatin does not stay active as long as atorvastatin or rosuvastatin. Second, it interacts with more medicines than the newer statins, which limits its safe dose in certain combinations.

The most important interaction in Nigeria involves amlodipine, one of the country's most prescribed blood pressure medicines: when taken together, the simvastatin dose should not exceed 20mg a day. Grapefruit juice raises simvastatin levels significantly and should be avoided. Because of these limits, doctors often reserve simvastatin for people needing gentler cholesterol lowering, and choose atorvastatin or rosuvastatin when a higher dose or fewer interactions are needed. Genuine simvastatin brands in Nigeria should carry a NAFDAC registration number.

## What is Simvastatin used for?

- Lowering high LDL ('bad') cholesterol and total cholesterol, particularly where modest lowering is enough
- Reducing the risk of a first heart attack or stroke in people at cardiovascular risk
- Secondary prevention after a heart attack, stroke, or angina
- An affordable long-term statin option, especially where cost is a major consideration
- Cholesterol control alongside diet and lifestyle change

## Dosage

Always follow a doctor's or pharmacist's instructions; this is general reference information.

- Adults: The usual starting dose is 10mg or 20mg once daily in the evening, with or without food. Depending on your cholesterol and risk, the dose may be increased to 40mg once daily. The 80mg dose is generally avoided because of the higher risk of muscle problems. If you also take amlodipine, diltiazem, or verapamil, your simvastatin dose should not exceed 20mg daily. Swallow the tablet whole with water.
- Children: Simvastatin is used in children (usually aged 10 and above) only for inherited high cholesterol (familial hypercholesterolaemia), and only under specialist supervision. It is not used for ordinary cholesterol control in children.
- Elderly: Standard doses are used, but doctors often start low and review for muscle symptoms, particularly in frail older adults or those on several other medicines.

Take simvastatin in the evening for best effect, and take it every day — its benefit is on long-term risk, so you will not feel it working. Do not stop because a cholesterol result has improved; the result is good because the medicine is working. Avoid grapefruit and grapefruit juice, which sharply raise simvastatin levels. If you miss a dose, skip it and take the next one at the usual time — do not double up.

## Side effects

Common: Muscle aches or weakness (myalgia) — usually mild; report unusual or persistent pain rather than stopping on your own; Headache; Constipation, abdominal pain, or nausea; Dizziness; Mildly raised blood sugar, and a small increase in the risk of developing type-2 diabetes in predisposed people.

Serious (seek medical help immediately): Severe, unexplained muscle pain, tenderness, or weakness — especially with dark or cola-coloured urine and fever — which may signal rare but serious muscle breakdown (rhabdomyolysis); stop and seek urgent care. This risk is higher at 40mg, with certain interacting drugs, and with grapefruit; Signs of liver problems: persistent nausea, loss of appetite, yellowing of the skin or eyes (jaundice), or dark urine; Severe allergic reaction: swelling of the face, lips, or throat, or difficulty breathing.

When to see a doctor: See your doctor promptly if you develop unusual, widespread, or persistent muscle pain or weakness, especially with dark urine or fever — the risk of muscle problems with simvastatin is higher than with newer statins, particularly at 40mg or with interacting drugs. Seek emergency care for facial or throat swelling or difficulty breathing. Your doctor may switch you to a statin with fewer interactions, such as rosuvastatin, if problems arise.

## Warnings

Do not take if: Do not take simvastatin if you are pregnant, planning pregnancy, or breastfeeding; Do not use if you have active liver disease or persistently raised liver enzymes; Do not take with certain strong interacting medicines (see interactions), which greatly raise the risk of muscle damage; Do not take if you are allergic to simvastatin or any other statin.

Interactions: Amlodipine, diltiazem, and verapamil (common heart and blood pressure medicines) — limit simvastatin to a maximum of 20mg daily when combined; Certain antibiotics (clarithromycin, erythromycin) and antifungals (ketoconazole, itraconazole) must not be taken with simvastatin — they can cause dangerous muscle breakdown; Some HIV medicines (protease inhibitors) are contraindicated with simvastatin; Fibrates (especially gemfibrozil) and high-dose niacin increase the risk of muscle problems; Grapefruit and grapefruit juice sharply raise simvastatin levels and must be avoided; Warfarin — simvastatin can increase the blood-thinning effect; INR should be monitored when starting or changing the dose.

Pregnancy & breastfeeding: Simvastatin is contraindicated in pregnancy and while breastfeeding. Statins block the cholesterol production that a developing baby needs, so they must not be used in pregnancy. Women who could become pregnant should use reliable contraception while taking simvastatin and stop it, informing their doctor, if they plan to conceive or discover they are pregnant. It should not be used while breastfeeding.

## Brands in Nigeria

Well-known NAFDAC-registered brands: Zocor (Merck (MSD), made in United Kingdom); Simvor (Sun Pharma, made in India); Simcard (Cipla, made in India).
Full searchable brand list: https://ogbogwu.com/drugs/simvastatin/brands/

## How to verify it is genuine

1. Check the NAFDAC registration number on the pack — all genuine simvastatin brands sold in Nigeria must carry a valid NAFDAC number
2. Verify the NAFDAC number using the NAFDAC Green Book or the NAFDAC mobile app before you buy
3. Buy only from licensed pharmacies and registered outlets, even for cheaper generics
4. Check the expiry date and that the packaging is sealed, intact, and shows no signs of tampering
5. Genuine tablets should be uniform in size, shape, and colour; discard any that look irregular or discoloured
6. For Zocor, look for Merck/MSD branding; for generics such as Simvor (Sun Pharma) or Simcard (Cipla), check the manufacturer name and batch number

Verify any NAFDAC number free (no login): https://ogbogwu.com/nafdac-checker/

## FAQs

### Why should simvastatin be taken at night?

The body makes most of its cholesterol overnight, and simvastatin does not stay active in the body as long as newer statins like atorvastatin or rosuvastatin. Taking it in the evening lines up its peak effect with your body's peak cholesterol production, so it works better. Newer, longer-acting statins can be taken at any time of day, but for simvastatin, evening dosing matters — make it part of your bedtime routine so you do not forget.

### I take amlodipine for blood pressure — can I take simvastatin too?

Yes, but with an important limit: when simvastatin is taken with amlodipine, the simvastatin dose should not go above 20mg a day, because amlodipine raises simvastatin levels and increases the risk of muscle side effects. This matters a lot in Nigeria, where amlodipine is one of the most prescribed blood pressure medicines. If you need stronger cholesterol lowering than 20mg of simvastatin allows, your doctor may switch you to atorvastatin or rosuvastatin, which do not have the same limit with amlodipine. Always tell whoever prescribes your statin about every other medicine you take.

### Is simvastatin as good as the newer statins?

For modest cholesterol lowering, simvastatin is effective and very affordable, and it has decades of safety data behind it. Its drawbacks are that it must be taken at night, it interacts with more medicines (including amlodipine and grapefruit), and its dose is capped in those situations — which limits how much it can lower cholesterol safely. When someone needs a large reduction in cholesterol, or takes drugs that clash with simvastatin, atorvastatin or rosuvastatin are usually preferred. The best statin is the one that safely reaches your cholesterol target given your other medicines and budget — a decision for your doctor.

## Sources

- NAFDAC Greenbook (official register of approved products in Nigeria)
- WHO Model List of Essential Medicines
- British National Formulary (BNF)
- Nigerian Standard Treatment Guidelines (Federal Ministry of Health)