Ganoderma lucidum, commonly known as reishi mushroom, has been used for thousands of years in traditional Chinese medicine. Ganoderma contains important constituents that may help to treat high blood pressure, diabetes, infections and hepatitis. Due to its effects in the body, ganoderma may cause dangerous effects in people with certain medical conditions and can cause negative interactions with some prescription medications. Long-term use of ganoderma may also cause certain side effects.
Negative Side Effects
If you use ganoderma for more than three to six months, you may experience some side effects. Common side effects from taking ganoderma include stomach upset, nosebleeds, dry mouth and dizziness, notes the University of Michigan Health System. You may also experience dry throat, itching, nausea and vomiting, says the Memorial Sloan-Kettering Cancer Center. Additionally, you should consult your doctor before taking ganoderma if you’re pregnant or breastfeeding, the University of Michigan advises.
Taking ganoderma may increase your risk of bleeding, because it interferes with blood clotting, according to a medical study cited by the University of Pittsburgh Medical Center. Reishi mushrooms contain adenosine, a substance that could inhibit blood platelets from sticking together and forming clots, explains the Memorial Sloan-Kettering Cancer Center. You should avoid taking ganoderma if you have a medical condition that causes bleeding problems. Also, don’t take ganoderma right before or following surgery and childbirth, the University of Pittsburgh cautions.
Prescription Medication Interactions
Ganoderma may react with certain prescription drugs. If you take blood-thinning medications like anticoagulants or antiplatelets, you shouldn’t take ganoderma due to increased bleeding risks, says the Memorial Sloan-Kettering Cancer Center. These medications include aspirin, Plavix, Coumadin, heparin and others, notes the University of Pittsburgh Medical Center. Also, avoid taking ganoderma if you take a medication to treat high blood pressure, because Reishi mushrooms may enhance the drug’s effects. Other potential drug interactions with ganoderma involve immunosuppressant medications and chemotherapy.