How much folinic acid is in leucovorin?

How much folinic acid is in leucovorin?

Leucovorin is the calcium salt form of folinic acid (also called 5-formyl-tetrahydrofolate). Because leucovorin is a salt, the amount of “folinic acid” you get depends on whether the product label is expressed as folinic acid (free acid) or as leucovorin (salt).

What does “mg” on the label usually mean—folinic acid or leucovorin?

In most clinical contexts, dosing is listed as leucovorin expressed in milligrams, and the label typically specifies the equivalent amount of folinic acid. To answer precisely for a specific product, you need the exact package/label wording and strength.

Quick conversion rule people commonly use

A commonly used equivalence is:
- 1 mg leucovorin calcium = about 0.88 mg folinic acid (free acid equivalent)

This is the factor used to convert between leucovorin calcium and folinic acid equivalents, but labels and references may vary by manufacturer wording and whether they use “leucovorin” or “folinic acid” units.

Can you tell me the exact leucovorin product and strength?

If you share the product name/strength (for example, “leucovorin calcium injection 50 mg” or the exact label text), I can compute the folinic acid equivalent for that specific dose.