Pravastatin to Lower LDL - Quick Reference Sheet

Pravastatin to Lower LDL

Created on 07/03/2026 – Quick Reference based on Evidence Review created using AI4L / Opus 4.8 Audit

One of the original statins, pravastatin lowers the harmful cholesterol tied to clogged arteries by roughly a fifth to a third and, backed by strong long-term evidence, cuts heart attacks and major heart events. Water-soluble and gentle, it causes fewer drug interactions and less muscle and blood-sugar trouble than other statins, but lowers cholesterol less than newer, stronger ones. (Full Review)

Protocol

Standard Dose
10–80 mg once daily
40 mg/day is the typical target used in the major outcome trials
Titration
Start 10–20 mg, titrate
Increase toward 40 mg only if needed; flat dose-response reduces muscle and liver effects
Timing
Evening, taken consistently
Traditionally taken in the evening; consistency matters more than exact time
Time to effect
LDL Onset
~2 weeks
LDL lowering is measurable within about two weeks
Full LDL Effect
4–6 weeks
Reaches full effect by roughly four to six weeks
Cardiovascular Benefit
Years
Cardiovascular-event benefit accrues over years of continuous use, not days

Benefits

Contraindications
  • Active liver disease or unexplained persistent transaminase elevations (>3× upper limit of normal)
  • Pregnancy or breastfeeding
  • Prior serious muscle reaction to a statin
Key Interactions
  • Fibrates, especially gemfibrozil
  • Immunosuppressants (cyclosporine)
  • Certain antibiotics and antifungals (clarithromycin, erythromycin, azole antifungals such as itraconazole)
  • Bile-acid sequestrants (cholestyramine, colestipol)
  • High-dose niacin (nicotinic acid, vitamin B3)
  • Red yeast rice
  • Heavy alcohol use

Risk & Side Effects

  • High: muscle symptoms
  • Medium: new-onset type 2 diabetes; elevated liver enzymes
  • Low: rhabdomyolysis; cognitive complaints
  • Speculative: peripheral neuropathy

Monitoring

Marker Target Why
LDL cholesterol (LDL-C) Risk-dependent; often <100 mg/dL, <70 mg/dL for high risk Primary target of therapy
Apolipoprotein B (apoB) <90 mg/dL (lower for high risk) Counts atherogenic particles; often tracks risk better than LDL-C alone
Triglycerides <100 mg/dL (functional); <150 mg/dL conventional Secondary lipid affected by pravastatin; metabolic marker
Liver enzymes (ALT/AST) Within normal limits (ALT often <25–30 U/L functional) Detects hepatic stress from the drug
Creatine kinase (CK) Within normal limits Flags muscle injury (myopathy)
Fasting glucose / HbA1c Glucose <90 mg/dL; HbA1c <5.4% (functional) Screens for the small statin-related diabetes risk
Lipoprotein(a) [Lp(a)] <30 mg/dL (<75 nmol/L) Independent genetic risk marker that refines overall risk

Cadence: Baseline lipid panel and liver enzymes before starting; lipid panel repeated at ~6–12 weeks, then every 6–12 months once stable; liver enzymes and creatine kinase checked as prompted by symptoms.

Qualitative Assessment

  • Absence of new or unexplained muscle pain, tenderness, or weakness
  • Energy levels and exercise tolerance (to catch subtle muscle effects)
  • Absence of dark-colored urine (a warning sign of muscle breakdown)
  • General well-being and any memory or concentration changes