Ganoderma lucidum is used to treat viral infections, such as the flu; heart and liver disease; and asthma and to boost the immune system, according to WebMD. Side effects include dryness and itchiness in the mouth, throat and nasal passages; nosebleeds; bloody stools; and an upset stomach.
Ganoderma lucidum is used to treat high blood pressure and high cholesterol. Some people use it for HIV/AIDS, ulcers, insomnia, kidney disease and chronic fatigue system. Other uses include pain from herpes, poisoning and stomach ulcers. It is possible that chemicals in ganoderma lucidum may help to prevent cancer tumors, states WebMD. Studies suggest that ganoderma lucidum increases the production of T-cells, which are a crucial component in the body's defense system against cancer cell reproduction, according to About.com.
Taking powdered ganoderma lucidum has been associated with toxic effects on the liver, notes WebMD. Drinking wine made from ganoderma lucidum may cause a rash for some people. Women who are pregnant or breastfeeding should avoid ganoderma lucidum, as there is not enough information to determine if it is safe.
People with bleeding disorders should avoid ganoderma lucidum because it can aggravate those conditions. It may lower blood pressure, so people with low blood pressure should not take ganoderma lucidum. Ganoderma lucidum should not be used within two weeks of having surgery, and people with thrombocytopenia should not take it, states WebMD.