Millions of people use a variety of herbs and supplements in their quest for health-including, as many studies show, a significant percentage of people with cancer. Unfortunately, and for various reasons, patients often don't tell their oncologists about it. This can be a serious mistake.
Many people assume that herbs and supplements are "natural" and therefore "safe," which is sometimes true. But there are many situations-particularly for patients receiving chemotherapy-where this assumption can actually be dangerous.
Why is this? Some herbs and supplements can interfere in a variety of ways with the metabolism of chemotherapy and other drugs. For example, garlic, fish oils, evening primrose oil, and gingko all have anticoagulant, that is blood-thinning, effects. St. John's Wort, an over-the-counter herbal remedy used by many people for symptoms of depression, can affect the metabolism of hormones, antibiotics, and chemotherapeutic agents. Echinacea is a widely used herbal immune system stimulant that can interfere with corticosteroids and monoclonal antibody treatments. Studies have also shown that betacarotene supplements can actually increase the risk of lung and prostate cancer in smokers.
These are just a few well-documented examples of how herbs and supplements can be risky when used concurrently with conventional cancer treatments. The "take-home message" is to talk with your physician if you are considering using any herbs or supplements at all, especially while you are undergoing treatment for cancer. Doctors are increasingly becoming aware of the importance of these issues, and are learning how to support patients and families in making informed choices about herbs, supplements, and other complementary and alternative (CAM) therapies. Raising your questions openly is important for both you and the medical team that is providing your care. Don't be bashful about getting your questions answered so you can feel confident and comfortable about all aspects of your care.
Posted
Apr 26 2007, 12:38 PM
by
DrJeremyGeffen