What is it?
Guaiacum is an herbal medicine used to treat rheumatism (arthritis, sore and stiff joints).
Other names for Guaiacum include: Guaiacum officinale, Guaiacum sanctum, Guaiac, Guajacum, and Lignum vitae.
Ask your doctor, nurse, or pharmacist if you need more information about this medicine or if any information in this leaflet concerns you.
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 Guaiacum you should take. The amount depends on the strength of the medicine and the reason you are taking Guaiacum. 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 Throw away medicine that is out of date or that you do not need.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.
- Before taking Guaiacum, tell your doctor if you are pregnant or breastfeeding
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:
You may have the following side effects, but this medicine may also cause other side effects. Tell your doctor if you have side effects that you think are caused by this medicine.
- Skin rashes may occur if the herb touches the skin (2)
1. Bradley PR (ed.): British Herbal Compendium vol. 1. British Herbal Medicine Association, Bournemouth, UK; 1992.
2. Mitchell J & Rook A: Botanical Dermatology. Greengrass, Vancouver, BC; 1979.
Last Updated: 10/4/2017