Statin Intensity Calculator | LDL Response & Dose Classifier

Use this tool to classify a statin regimen, estimate the expected LDL-C lowering band, compare actual response against baseline values, and export a clean summary. It is an educational calculator and not a prescribing order sheet.

Calculator Form

Statin

Choose the prescribed statin molecule.

Dose

Dose options update automatically by statin.

Age (years)

Optional context field for the summary.

Baseline LDL-C (mg/dL)

Enter pre-treatment LDL-C to estimate expected range.

Current LDL-C (mg/dL)

Used to calculate the observed LDL-C reduction.

Target LDL-C (mg/dL)

Optional target for gap analysis.

Baseline non-HDL-C (mg/dL)

Optional extended lipid context.

Current non-HDL-C (mg/dL)

Used for optional non-HDL-C change output.

Duration on therapy (weeks)

Helpful for interpreting early or late follow-up.

Flag possible muscle symptoms or intolerance concern

Notes

Optional short note to include in exports.

Simvastatin 80 mg is intentionally excluded from the standard new-start options in this tool. That dose has important safety restrictions.

Example Data Table

Case	Statin	Dose	Baseline LDL-C	Current LDL-C	Reduction	Calculated Intensity
A	Atorvastatin	40 mg	190	92	51.6%	High
B	Rosuvastatin	10 mg	158	94	40.5%	Moderate
C	Pravastatin	20 mg	146	112	23.3%	Low
D	Pitavastatin	2 mg	171	111	35.1%	Moderate

Formula Used

1. Intensity classification: The selected statin and dose map to a standard intensity band.

2. Actual LDL-C reduction %: ((Baseline LDL-C − Current LDL-C) ÷ Baseline LDL-C) × 100

3. Expected on-treatment LDL-C range: Baseline LDL-C × (1 − expected reduction band)

4. Gap to target: Current LDL-C − Target LDL-C

5. Needed reduction from current: ((Current LDL-C − Target LDL-C) ÷ Current LDL-C) × 100

These formulas summarize expected response bands and do not replace patient-specific clinical judgement, interaction screening, or laboratory review.

How to Use This Calculator

Choose the statin and daily dose.
Enter baseline LDL-C to estimate the expected on-treatment range.
Enter current LDL-C to compare actual response with the selected band.
Add a target LDL-C if you want a gap-to-goal calculation.
Optionally enter non-HDL-C values, duration, age, and a short note.
Press Calculate Intensity to show the result above the form.
Use the CSV or PDF buttons to export the summary.
Review the chart to compare baseline, current, target, and expected LDL-C values.

FAQs

1. What does statin intensity mean?

It describes the expected average LDL-C lowering from a regimen. High intensity usually lowers LDL-C by at least half, moderate by 30% to 49%, and low by less than 30%.

2. Does this calculator prescribe a medicine?

No. It classifies a selected regimen and compares measured lipid changes. Medication choice still depends on diagnosis, tolerance, interactions, pregnancy status, kidney function, and clinician review.

3. Why do I need baseline LDL-C?

Baseline LDL-C allows the calculator to estimate expected on-treatment ranges and compute the actual percentage reduction after treatment values are entered.

4. What if my current LDL-C is higher than baseline?

The tool will show a negative response. That can happen because of data entry errors, poor adherence, timing issues, secondary causes, or inadequate regimen effect.

5. Why is simvastatin 80 mg not listed?

That dose carries major safety restrictions. Many tools leave it out of ordinary starting options and direct users to clinician review instead of routine selection.

6. Can I use non-HDL-C here?

Yes. The form includes optional baseline and current non-HDL-C fields so you can export a broader lipid summary alongside LDL-C response.

7. Is the expected LDL-C range exact?

No. It is a teaching estimate based on intensity bands. Individual response varies with genetics, adherence, dose timing, absorption, interactions, and baseline risk.

8. When should I repeat lipid testing?

This page only summarizes the entered timing. Actual follow-up intervals depend on clinical goals, dose changes, adherence questions, and local practice standards.