Standard Dosing for Lipitor (Atorvastatin)
Lipitor treats high cholesterol and prevents cardiovascular events in adults and children over 10 with specific conditions. Dosing starts at 10-20 mg once daily, titrated to 40-80 mg based on LDL goals, lipids, and risk factors. Take any time of day with or without food.[1]
Dosing by Patient Group
Adults: Initial 10-20 mg daily for most; 40 mg for those with severe hypercholesterolemia or diabetes plus CVD risk. Max 80 mg. Adjust after 2-4 weeks.[1]
Children (10-17 years, heterozygous familial hypercholesterolemia): Start at 10 mg daily; max 20 mg.[1]
Elderly or renal/hepatic impairment: No dose change needed, but monitor closely; avoid in active liver disease.[1]
How to Adjust and Monitor Dosing
Check lipids 2-4 weeks after starting or changing dose, then periodically. Goal is LDL <100 mg/dL (or lower for high-risk patients). If goals unmet, intensify lifestyle changes or add drugs before max dose.[1]
Common Missed Dose Instructions
Skip if close to next dose; do not double up. Restart schedule normally.[1]
Why Dosing Varies and Interactions
Higher doses (40-80 mg) for aggressive LDL reduction, but increase myopathy risk. Avoid with strong CYP3A4 inhibitors like itraconazole (limit to 20 mg); caution with fibrates or niacin.[1] Grapefruit juice raises levels—limit to 1 quart daily.
Lipitor vs. Other Statins' Dosing
Lipitor's potency allows lower mg equivalents: 10 mg Lipitor ≈ 20 mg simvastatin or 40 mg pravastatin for similar LDL drop.[2]
[1]: Lipitor Prescribing Information (FDA)
[2]: DrugPatentWatch.com Statin Comparison