Botanical
Licorice Root (Glycyrrhiza glabra)
Also known as: Glycyrrhiza glabra, DGL (deglycyrrhizinated), Licorice extract
B
Evidence
Traditional antiviral herb with glycyrrhizin compound showing activity against multiple viruses.
Primary uses
- Antiviral
- Adrenal support
- Sore throat
- Digestive support
How it works
- Glycyrrhizin has antiviral activity
- Supports adrenal function
- Soothes mucous membranes
- Anti-inflammatory effects
Dosage
- Typical range
- 200-400mg standardized extract (non-DGL) for short periods
- Timing
- With meals
- With food
- Yes
- Duration
- Short-term only (2-4 weeks) for whole extract
- Special populations
- Those with viral infections, adrenal fatigue
Forms
- Whole root extract
- DGL
- Tea/decoction
Safety
Common side effects
- Edema
- Headache
- Fatigue
- Elevated blood pressure
Contraindications
- Hypertension
- Heart disease
- Kidney disease
- Hypokalemia
- Pregnancy
Evidence notes
Traditional use with in vitro antiviral evidence
Grade B: Some human trials support key claims; further confirmation needed.
Related in Botanical
Check a full stack
Formulate's free interaction checker lets you paste in any combination of supplements and medications at once — every pairing flags severity, timing, and cited evidence.
Open the checkerMedical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.