Drugs & toxicology

Imipramine (+ desipramine) unit converter

Tricyclic antidepressant, monitored together with its active metabolite desipramine

Also known as: Tofranil

Converter

Enter a value in any unit and all other units fill in.

ng/mL mg/L µg/dL

Worked example

237.5 ng/mL (middle of the reference range) = 0.237 mg/L

Conversion formulas

mg/L	mg/L = ng/mL × 0.001	ng/mL = mg/L × 1000
µg/dL	µg/dL = ng/mL × 0.1	ng/mL = µg/dL × 10

Reference range

Unit	Adults
ng/mL	175 – 300
mg/L	0.175 – 0.3
µg/dL	17.5 – 30

Source: Therapeutic Drug Monitoring in Psychiatry (Pharmaceuticals 2024), AGNP reference ranges · Last reviewed: 2026-10-14

Note from the source: AGNP consensus reference range of imipramine plus desipramine 175-300 ng/mL

Frequently asked questions

How do I convert Imipramine (+ desipramine) from ng/mL to mg/L?

mg/L = ng/mL × 0.001. In the other direction: ng/mL = mg/L × 1000.

What is the reference range of Imipramine (+ desipramine)?

For adults the range is 175 – 300 ng/mL (Therapeutic Drug Monitoring in Psychiatry (Pharmaceuticals 2024), AGNP reference ranges). Reference ranges differ between laboratories and partly by sex and age; use the range printed on your lab report.

Which units are used for Imipramine (+ desipramine)?

Common units are ng/mL, mg/L, µg/dL.