Drug class·Corticosteroids·Reviewed June 9, 2026
Oral corticosteroids and supplements: protect bone and minerals.
Longer courses of prednisone and its siblings are associated with calcium and vitamin D depletion and bone loss, plus blood-sugar and potassium effects that touch several supplements. The depletion table below shows what to monitor and what is commonly replaced.
Corticosteroids at a glance.
A quick, data-grounded summary. The per-drug tables are below.
Across the 4 corticosteroids in the NutriStack database (Dexamethasone, Methylprednisolone, Prednisone, and Prednisolone), 8 substances have a documented interaction, 1 of them flagged to avoid or as a serious conflict. Long-term use of some medications in this class is also associated with lower Calcium, Magnesium, Potassium, and Vitamin D; the depletion table shows exactly which drugs. Interactions are documented per drug, and members of a class do not all behave the same, so check your exact medication below. None of this replaces your prescriber's advice.
The corticosteroids we track.
Open any medication for its own full interaction and depletion guide.
Substances that interact with corticosteroids.
Merged across the class, highest severity first. The 'Documented for' column shows which members carry the interaction record; an absent drug means no documented record, not proven safety.
| Substance | Interaction | Documented for | What happens |
|---|---|---|---|
| St. John's Wort | Conflict | Dexamethasone, Methylprednisolone | Dexamethasone: St. John's Wort can induce CYP3A4, and dexamethasone exposure is strongly affected by CYP3A4 activity. Taking St. John's Wort during... |
| Strontium | Caution | All 4 corticosteroids | Dexamethasone: Dexamethasone is a potent glucocorticoid and can contribute to bone loss when exposure is repeated or prolonged. Strontium supplements can... |
| Schisandra | Caution | Dexamethasone, Methylprednisolone | Dexamethasone: Schisandra extract can inhibit CYP3A in humans, and dexamethasone exposure rises markedly when CYP3A4 is inhibited. Adding Schisandra... |
| Calcium | Synergy | All 4 corticosteroids | Dexamethasone: Dexamethasone is the most potent oral glucocorticoid. Even short courses significantly impact calcium balance. Supplementation helps... |
| Potassium | Synergy | All 4 corticosteroids | Dexamethasone: Dexamethasone can precipitate hypokalemia or hypokalemic periodic paralysis in susceptible patients, even though it has little... |
| Vitamin D2 | Synergy | All 4 corticosteroids | Dexamethasone: Dexamethasone is a potent systemic glucocorticoid, and prolonged use can accelerate bone loss. Vitamin D2 can help maintain vitamin D... |
| Vitamin D3 | Synergy | All 4 corticosteroids | Dexamethasone: Dexamethasone rapidly depletes vitamin D stores through CYP24A1 induction. Supplementation is essential. |
| Zinc | Synergy | Prednisone | Prednisone causes zinc depletion through increased urinary zinc excretion, mediated by HPA axis disruption. Chronic corticosteroid use at... |
What corticosteroids can deplete.
Nutrients associated with long-term use somewhere in this class, worst documented severity first. Discuss any replacement with your prescriber.
| Nutrient | Severity | Documented for | Replace with | Monitor |
|---|---|---|---|---|
| Calcium | Significant | All 4 corticosteroids | Calcium | Serum calcium or bone density trend |
| Magnesium | Moderate | All 4 corticosteroids | Magnesium Glycinate | Serum magnesium or RBC magnesium |
| Potassium | Moderate | All 4 corticosteroids | Clinician-guided potassium repletion if serum potassium is low | Serum potassium + kidney function |
| Vitamin D | Moderate | All 4 corticosteroids | Vitamin D3 | 25-OH vitamin D |
Common corticosteroids questions.
Quick answers drawn from the tables above.
What supplements should I avoid with corticosteroids?
Across the class, 1 substance pairing is flagged to avoid or as a serious conflict, including St. John's Wort. The exact risk depends on which medication in the class you take, so check your specific drug's page and confirm with your prescriber.
Do all corticosteroids interact with supplements the same way?
No. Interactions are documented per drug, and the 4 corticosteroids in the database differ in how they are absorbed and cleared. The class table above shows which members carry each record; a drug without a record is undocumented, not proven safe.
Do corticosteroids deplete any nutrients?
Some medications in this class are documented to lower Calcium, Magnesium, Potassium, and Vitamin D with long-term use; the depletion table on this page shows which specific drugs carry each record. Useful biomarkers to monitor include Serum calcium or bone density trend, Serum magnesium or RBC magnesium, and Serum potassium + kidney function. Ask your prescriber before adding a replacement supplement.
Is it safe to take St. John's Wort with corticosteroids?
NutriStack classifies the St. John's Wort and Dexamethasone pairing as conflict: St. John's Wort can induce CYP3A4, and dexamethasone exposure is strongly affected by CYP3A4 activity. Taking St. John's Wort during dexamethasone therapy may lower... The interaction is documented for 2 of the 4 corticosteroids, and severity differs by drug. Always confirm with your prescriber.
Check your whole stack
See how your medication fits your supplements.
NutriStack screens your full routine for interactions and depletions, and updates the moment you change it.