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Promethazine unit converter

Promethazine level in serum or plasma (drug monitoring; sedierung, Allergie)

Also known as: Promethazin

Converter

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

Worked example

10 nmol/L = 2.84 ng/mL

Conversion formulas

nmol/Lnmol/L = ng/mL × 3.516ng/mL = nmol/L × 0.2844

Good to know

Promethazine is reported in ng/mL or nmol/L. The page converts between the units only.

Reference range

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Source: PubChem: Promethazine · Last reviewed: 2026-10-19

Note from the source: No established reference range; the page converts units only. Mass-to-amount conversion uses a molar mass of 284.4 g/mol. Drug levels must be interpreted by the treating team; this is not a dosing recommendation.

Frequently asked questions

How do I convert Promethazine from ng/mL to nmol/L?

nmol/L = ng/mL × 3.516. In the other direction: ng/mL = nmol/L × 0.2844.

Which units are used for Promethazine?

Common units are ng/mL, nmol/L.

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