The short answer
Have glycyrrhizin-containing licorice reviewed before combining it with oral triamcinolone. Licorice root guidance cautions against corticosteroid co-use because electrolyte and blood-pressure problems may worsen.
What this answer covers
Oral Glycyrrhiza glabra root preparations containing glycyrrhizin. Deglycyrrhizinated products and topical preparations require separate assessment.
- Supplement or preparation
- Glycyrrhiza glabra
- Medication ingredient
- triamcinolone
Confirm which triamcinolone you use
This advice concerns plain triamcinolone tablets taken by mouth. Creams, nasal products and injections often contain a different triamcinolone form and have different exposure. Ask your pharmacist to check the full ingredient and route before applying this advice.
Check what kind of licorice is in the product
Confirm Glycyrrhiza glabra root and whether glycyrrhizin has been removed. Root extracts, ordinary licorice products and deglycyrrhizinated products should not be treated as interchangeable.
Why the precaution exists
Licorice can increase blood pressure and disturb potassium balance. A controlled study found a blood-pressure increase in healthy adults, and EMA guidance advises against the specified licorice preparations with corticosteroids. It did not measure this exact combination.
Discuss symptoms and monitoring
Tell your clinician about swelling, rising blood pressure or new weakness, and ask whether potassium testing is appropriate. Do not try to correct a suspected imbalance with potassium supplements or by spacing licorice a few hours from the steroid.
Evidence and practical considerations
Side effects & toxicity
A conditional avoidance/review precaution is supported by species-matched root guidance and oral triamcinolone electrolyte warnings, not by an exact-pair clinical trial.
- Exact scope
- Oral Glycyrrhiza glabra root preparations containing glycyrrhizin. Deglycyrrhizinated products and topical preparations require separate assessment. with Plain triamcinolone tablets taken orally, exact RxCUI 10759; other forms and routes require separate product assessment.
- Medication form and route
- oral
- Timing or duration
- Dose and duration matter; bone guidance principally concerns prolonged systemic treatment.
What remains uncertain
- No exact co-use outcome trial. Licorice does not inhibit every steroid’s inactivation; triamcinolone has little mineralocorticoid activity and the magnitude of additive risk is unknown.
Factors that may matter: exact formulation and route; dose and duration; other medicines; supplement preparation; individual nutritional or electrolyte status.
Read the supporting source summaries
Source 1: official product label
swissmedicinfo-pro.ch · Source check Sep 10, 2026
Population: Patients prescribed oral plain triamcinolone.
Risks depend on dose and duration. Lists osteoporosis, muscle weakness, protein catabolism, sodium/fluid retention and potassium loss. Advises protein- and vitamin-rich diet. Specifically names Hypericum perforatum as an inducer that can reduce triamcinolone effect. CYP3A4 inhibitors can reduce clearance. Monitor potassium with potassium-losing medicines and replace if needed.
How this applies: Exact RxCUI 10759 IN identity supported by ingredient name and RxNav record. German professional information translated for scoped oral-product conclusions.
Plain triamcinolone has little mineralocorticoid activity. This is not an acetonide, diacetate or hexacetonide label; topical, inhaled and injected products cannot be assigned the same exposure or precautions automatically. No universal supplement spacing or dose is established.
Source 2: official herbal assessment
ema.europa.eu · Source check Sep 10, 2026
Population: Users of the specified licorice root preparations, including Glycyrrhiza glabra.
Advises against co-use with corticosteroids or other medicines aggravating electrolyte imbalance. Recognizes blood-pressure increase, water retention and hypokalemia. Explicitly says inhibition of inactivation cannot be assumed for all corticosteroids and notes contrary dexamethasone findings.
How this applies: Species-matched root guidance combined with exact oral label supports conditional electrolyte/BP precaution, not a proven exact-pair interaction rate.
Class precaution is not an exact triamcinolone trial. Does not establish triamcinolone metabolism inhibition or equivalence to deglycyrrhizinated products.
Source 3: original research
pubmed.ncbi.nlm.nih.gov · Source check Sep 10, 2026
Population: Twenty-eight healthy young adults in a randomized nonblinded crossover study.
Home systolic pressure rose during licorice versus control periods, with suppression of renin and aldosterone. The reported changes were 3.1 versus -0.3 mm Hg, not a 3.1 mm Hg between-treatment estimate.
How this applies: Exact study exposure only; no transfer of quantitative effects to triamcinolone.
No triamcinolone co-use. Glycyrrhizic acid exposure is central; the abstract does not establish equivalence of all Glycyrrhiza species, plant parts or deglycyrrhizinated products.
Research assessment: · Open full citations ↗
Review and change history
- Publication status
- Published research summary
- Clinical review
- Not yet recorded
| Date | Update |
|---|---|
| Article prepared | |
| Exact current claim adjudicated against captured originals with explicit oral-formulation boundary; no clinical review asserted. | |
| Research summary published |
Article revision: 220d1ddd8c34d7b3
This guide brings together the evidence records used by our interaction checker. Each finding retains its own preparation limits, research date, and source summaries.
Full citations require verification. Reading this answer and the source summaries does not.
Taking other supplements or medications?
Use the checker to explore your other combinations. Ask a pharmacist to review the exact products, amounts and medical conditions in your complete list.
Open the interaction checkerInformation, not medical advice. Do not change prescribed treatment based on this guide.