MOH's National Population Health Survey 2024 reported hyperlipidaemia prevalence of 30.5% among Singapore residents aged 18 to 74. Lipid-lowering treatment — usually built around a statin when medication is needed — is one of the best-studied interventions for preventing heart attacks and strokes. This guide explains the medications used in Singapore, who needs them, and what to monitor.
How cholesterol medications work
The goal of treatment is to lower LDL cholesterol (LDL-C) — the "bad" cholesterol that drives plaque build-up in arteries. The ACE Lipid Management ACG and Healthier SG Lipid Disorders Care Protocol recommend a risk-based approach: the higher your overall cardiovascular risk, the lower your LDL-C target needs to be.
Singapore LDL-C targets by risk tier:
- Low risk: < 3.4 mmol/L
- Intermediate risk, or lower-risk diabetes / CKD: < 2.6 mmol/L
- High risk (e.g., diabetes with complications, established atherosclerotic cardiovascular disease): < 1.8 mmol/L
- Very high risk (post-acute coronary syndrome, recurrent events): < 1.4 mmol/L
LDL-C above 4.9 mmol/L warrants evaluation for familial hypercholesterolaemia and may need specialist referral. The greater the LDL drop, the lower the future cardiovascular event rate — each 1 mmol/L reduction translates to roughly a 22% lower risk of a major vascular event over 5 years.
Statins: foundation therapy
Statins inhibit HMG-CoA reductase, the rate-limiting enzyme in cholesterol synthesis. They are the foundation of lipid-lowering treatment because no other class has the same depth of outcome evidence.
Common in Singapore:
- Atorvastatin 10–80 mg once daily — high-intensity at 40–80 mg (lowers LDL ≈ 50%).
- Rosuvastatin 5–40 mg once daily — most potent per mg; high-intensity at 20–40 mg (lowers LDL ≈ 55%).
- Simvastatin 10–40 mg in the evening — moderate-intensity at 20–40 mg; many drug interactions limit use at higher doses.
- Pravastatin, fluvastatin, lovastatin — lower-intensity options, occasionally used in patients with significant drug interactions or intolerance.
Statins are generally taken once daily; rosuvastatin and atorvastatin can be taken at any time of day, while shorter-acting statins (simvastatin, lovastatin) work best in the evening.
Strengths: robust mortality and morbidity reduction, low cost (generic), well-studied across decades.
Side effects to watch for:
- Muscle aches (myalgia) — affects 5–10% of patients in clinical practice. Often resolves on switching statins or lowering the dose. True rhabdomyolysis (severe muscle damage) is rare.
- Raised liver enzymes — transient ALT rise in 1–3% of patients; clinically significant hepatotoxicity is very rare.
- New-onset diabetes — a small increase in incidence (about 1 extra case per 250 patients-years), mostly in patients with pre-diabetes. The cardiovascular benefit far outweighs this risk.
- Drug interactions — simvastatin is most prone; rosuvastatin and pravastatin have the cleanest interaction profile.
Add-on oral therapies
Ezetimibe
Blocks intestinal cholesterol absorption. Typical dose 10 mg once daily. Adds an extra 15–20% LDL-C reduction on top of a statin, with no meaningful side-effect profile. Singapore guidelines recommend adding ezetimibe before doubling the statin dose if a patient is close to target but not quite there.
Fibrates
Primarily lower triglycerides; modest effect on LDL. Used in patients with high triglycerides (above 5.6 mmol/L) at risk of pancreatitis, or as an add-on for mixed dyslipidaemia. Common in Singapore: fenofibrate. Avoid combining gemfibrozil with statins (raises rhabdomyolysis risk).
Bile acid sequestrants
Cholestyramine and colesevelam — rarely used now as they are less convenient and have many drug interactions. Occasionally useful in pregnancy when statins are contraindicated.
Injectable options
PCSK9 inhibitors
Monoclonal antibodies that block PCSK9, increasing LDL-receptor recycling. Available in Singapore: evolocumab (Repatha) and alirocumab (Praluent). Self-injected every 2 or 4 weeks. Lower LDL by an additional 50–60% on top of a statin. Indicated for very high-risk patients (post-MI, recurrent events, familial hypercholesterolaemia) who can't reach target on oral therapy.
Funding is limited to selected indications. ACE guidance recommends evolocumab for Medication Assistance Fund coverage in defined high-risk or familial hypercholesterolaemia situations; alirocumab and inclisiran do not have the same MAF coverage for hypercholesterolaemia.
Inclisiran
A small interfering RNA (siRNA) that silences PCSK9. Given every six months after a loading dose. Access and funding should be checked with the treating specialist because local coverage differs from PCSK9 monoclonal antibodies.
Monitoring plan
Standard Singapore monitoring schedule once on stable therapy:
- Lipid panel at baseline, then 8–12 weeks after starting or changing therapy. Repeat every 6–12 months once at target.
- Liver function tests (ALT) at baseline. Routine surveillance is no longer recommended unless symptoms develop — but check if you start a new interacting drug.
- Creatine kinase (CK) only if there are muscle symptoms — routine CK monitoring is not recommended.
- HbA1c annually, especially in patients with pre-diabetes.
Managing statin-associated muscle symptoms
If you develop muscle aches on a statin:
- Confirm it's actually statin-related by stopping for 4 weeks and re-challenging — about 60% of patients tolerate the re-challenge.
- Switch to a different statin — moving from simvastatin to rosuvastatin or pravastatin often works.
- Try alternate-day dosing of rosuvastatin or atorvastatin (long half-life).
- Use a low-dose statin plus ezetimibe rather than a high-dose statin alone.
- Consider specialist non-statin options if statins are genuinely intolerable.
True statin intolerance — defined as failing two or more statins at lowest tolerated dose — is uncommon. Many cases of muscle ache turn out to be nocebo effect (expecting the side effect), and patients tolerate the same statin under blinded conditions.
Drug interactions to know
- Simvastatin with amlodipine — limit simvastatin to 20 mg if also on amlodipine.
- Simvastatin or atorvastatin with macrolide antibiotics (clarithromycin, erythromycin) — temporarily hold the statin or switch antibiotic.
- Statins with grapefruit juice — affects simvastatin and atorvastatin most; rosuvastatin and pravastatin are safer.
- Fibrates with statins — fenofibrate is preferred over gemfibrozil; use the lowest statin dose that achieves target.
Special populations
- Pregnancy: statins are contraindicated. Plan to stop statins three months before conception if attempting pregnancy.
- Chronic kidney disease: atorvastatin, pravastatin and fluvastatin do not require dose reduction; rosuvastatin needs careful dosing if eGFR is below 30.
- Older adults: evidence supports continuing statins in patients up to age 75 for primary prevention; for those over 75, the benefit-vs-burden conversation depends on overall life expectancy and frailty.
- Patients of South Asian or East Asian descent: may need lower rosuvastatin doses (start at 5 mg) due to differences in drug metabolism.
MediSave and adherence in Singapore
Hyperlipidaemia is covered under the MediSave Chronic Disease Management Programme (CDMP). Under the current MediSave500/700 scheme, patients may use up to S$500/year from MediSave for outpatient treatment of selected chronic conditions, or S$700/year if they meet the complex chronic disease criteria. Generic statins are inexpensive — a month's supply of atorvastatin 20 mg or rosuvastatin 10 mg typically costs S$5–20.
Adherence tips:
- Take your statin at the same time every day (after dinner or before bed are easy anchors).
- Use a 7-day pill organiser and a phone reminder.
- Bring all current tablets to every consult for medication review.
- Do not stop a statin yourself — the relapse rate of cardiovascular events after stopping is meaningful and avoidable.
When to see a doctor
Speak to a doctor if:
- You are not at your LDL-C target after 8–12 weeks on current therapy.
- You have new or severe muscle pain, dark urine or significant weakness — these can signal rhabdomyolysis and need urgent assessment.
- You develop unexplained fatigue, jaundice or right-upper-quadrant abdominal pain — possible liver-related side effects.
- Your LDL-C is above 4.9 mmol/L or you have a family history of early heart attack — consider testing for familial hypercholesterolaemia.
- You are planning pregnancy on a statin.
A short teleconsult is usually enough to review your lipid panel, optimise your statin, add ezetimibe if needed and arrange MediSave-claimable refills. $15 nett with an SMC-registered GP; same-day medication delivery available.
Frequently asked questions
Will I have to take a statin for life?
For most patients with established atherosclerotic disease or high cardiovascular risk, yes — the benefit accumulates over years and reverses if treatment stops. Patients on a statin purely for borderline primary prevention may be able to step down or stop if lifestyle changes lower their LDL into target range, with regular re-checks.
Are natural supplements like red yeast rice as good as a statin?
Red yeast rice contains low-dose monacolin K (chemically identical to lovastatin) and can lower LDL by 15–25%, but content varies widely between brands and quality control is poor. It can also cause the same muscle and liver side effects as a pharmaceutical statin. A standardised, dose-titrated statin from a doctor is safer and more predictable.
How long does it take for cholesterol medication to work?
LDL-C drops within 2–4 weeks of starting a statin, and by 6–8 weeks you are usually at the new steady state. Re-check the lipid panel 8–12 weeks after starting or changing therapy.
Should I take a statin if my LDL is "only mildly elevated"?
It depends on your overall cardiovascular risk, not the LDL number alone. A 60-year-old smoker with hypertension and an LDL of 3.6 mmol/L has very different risk from a 35-year-old non-smoker with the same LDL. Doctors use cardiovascular risk calculators (e.g., MOH-endorsed SG-FRS) to decide whether treatment is justified.
Does MediSave cover cholesterol medications in Singapore?
Yes — hyperlipidaemia is covered under the MediSave CDMP. Patients can claim up to S$500/year (S$700/year for those with multiple chronic conditions) from their own or a family member's MediSave account towards consultations and approved medications.
Sources reviewed
- MOH: National Population Health Survey 2024 Report
- ACE: Lipid management - focus on cardiovascular risk
- Healthier SG Primary Care Pages: Lipid Disorders Care Protocol
- ACE: Ezetimibe for primary hypercholesterolaemia
- ACE: PCSK9 inhibitors for treating hypercholesterolaemia
- Cholesterol Treatment Trialists meta-analysis (PubMed)
- CPF: Using MediSave for outpatient treatments
The bottom line
For most patients, a moderate- to high-intensity statin — sometimes paired with ezetimibe — reaches LDL-C target with minimal side effects. The biggest barriers are adherence and nocebo-driven discontinuation rather than the medication itself.
If you would like a Singapore-licensed GP to review your lipid panel, optimise your statin and arrange MediSave-claimable refills, you can book a $15 nett teleconsult and have your medication delivered the same day.
