Health Guide


What is it?

DGL stands for Deglycyrrhizinated Licorice. DGL is used to treat canker sores, heartburn, and ulcers.

Other names for DGL include: Deglycyrrhizinated Licorice.

Ask your doctor, nurse, or pharmacist if you need more information about this medicine or if any information in this leaflet concerns you.

Before Using:

Tell your doctor if you

  • are taking medicine or are allergic to any medicine (prescription or over-the-counter (OTC) or dietary supplement)
  • are pregnant or plan to become pregnant while using this medicine
  • are breastfeeding
  • have any other health problems, such as high blood pressure or heart or blood vessel disease


Talk with your caregiver about how much DGL you should take. The amount depends on the strength of the medicine and the reason you are taking DGL. If you are using this medicine without instructions from your caregiver, follow the directions on the medicine bottle. Do not take more medicine or take it more often than the directions tell you to.

To store this medicine:

Keep all medicine locked up and away from children. Store medicine away from heat and direct light. Do not store your medicine in the bathroom, near the kitchen sink, or in other damp places. Heat or moisture may cause the medicine to break down and not work the way it should work. Throw away medicine that is out of date or that you do not need. Never share your medicine with others.

Drug and Food Interactions:

Do not take DGL without talking to your doctor first if you are taking:

  • Large amounts of milk (5)


  • Before taking DGL, tell your doctor if you are pregnant or breastfeeding

Side Effects:

Stop taking your medicine right away and talk to your doctor if you have any of the following side effects. Your medicine may be causing these symptoms which may mean you are allergic to it.

  • Breathing problems or tightness in your throat or chest
  • Chest pain
  • Skin hives, rash, or itchy or swollen skin

Other Side Effects:

This medicine may also cause other side effects. Tell your doctor if you have side effects that you think are caused by this medicine.


1. Murray MT: Encyclopedia of Nutritional Supplements. Prima Publishing, Rocklin, CA; 1996.

2. Morgan AG, Pacsoo C & McAdam WAF: Comparison between ranitidine and ranitidine plus Caved-S in the treatment of gastric ulceration. Gut 1985; 26(12):1377-1379.

3. Larkworthy W & Holgate PFL: Deglycyrrhizined liquorice in the treatment of chronic duodenal ulcer. Practitioner 1975; 215(1290):782-792.

4. Engqvist A, Von Feilitzen F, Pyk E et al: Double-blind trial of deglycyrrhizinated liquorice in gastric ulcer. Gut 1973; 14(9):711-715.

5. Gibbs CJ & Lee HA: Milk-alkali syndrome due to Caved-S. J R Soc Med 1992; 85(8):498-499.

Last Updated: 7/4/2018
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