There is currently no reliable evidence available for the effectiveness of dandelion for the above uses.
When using dandelion as a diureticdiuretican agent that increases urine flow it should be for occasional use only. When used for flushing of the urinary tract, indigestion, and loss of appetite, you should contact your healthcare provider if symptoms persist for more than 2 weeks.
Dandelion is generally well-tolerated. It may cause stomach upset and heartburn in some people.
Do not use dandelion without consulting your healthcare provider if you suffer from liver disease, gallbladder disease, or intestinal obstruction.
Do not use dandelion in doses of 10g per day or more of dried leaf or dried root if you:
- have heart disease
- have high blood pressure
- have low blood pressure
- have kidney disease
- have liver disease
- have diabetes
- have edema (swelling of the feet, face, and hands)
- are currently using a diuretic medication
Dandelion can slow blood clotting. When it is taken with other medications that affect your body's ability to clot blood, dandelion can increase the chance of bleeding.
You should avoid dandelion if you are allergic to it or to any plants in the Asteraceae/Compositae family, such as ragweed, chrysanthemums, marigolds, and daisies.
There may be an interaction between dandelion and the following medications:
- blood-thinning medications (e.g., warfarin, clopidogrel, ASA)
- potassium-sparing diuretics (e.g., spironolactone, amiloride, triamterene)
- quinolone antibiotics
- medications that are affected by certain liver enzymes (e.g., amitriptyline, haloperidol, ondansetron, propranolol, theophylline, verapamil)
Before taking any new medications, including natural health products, speak to your physician, pharmacist, or other health care provider. Tell your health care provider about any natural health products you may be taking.
*All medications have both common (generic) and brand names. The brand name is what a specific manufacturer calls the product (e.g., Tylenol®). The common name is the medical name for the medication (e.g., acetaminophen). A medication may have many brand names, but only one common name. This article lists medications by their common names. For information on a given medication, check our Drug Information database. For more information on brand names, speak with your doctor or pharmacist.