Steroid Conversion Calculator

Why Use

Different glucocorticoids possess different duration of effect and potency; it is important to consider both factors when converting a steroid.

When to Use

Patients on chronic steroids may need to have their doses converted to another form for drug shortages or availability or formulation (pill, liquid, IV vs oral), for example. Patients receiving a short “burst” dose of steroids may also need conversion based on formulation as well.

Formula

Pearls / Pitfalls

These dose relationships only apply to oral or IV administration. Glucocorticoid potencies may differ greatly following IM or intra-articular administration. Fludrocortisone is not used for glucocorticoid effects (only for its mineralocorticoid properties).

Advice

Remember to consider not just potency but also duration of effect. Dexamethasone typically requires much less frequent dosing due to its very long half-life and duration of action.