Yes. When taking medication, you should investigate possible interactions with an herbal remedy you may be considering. Be careful about mixing herbs and drugs that have similar actions. For example, it may not be a good idea to mix anticoagulant drugs with ginkgo, a natural blood thinner; the herb valerian, a sedative, probably shouldn’t be mixed with prescription sleeping pills. Similarly, avoid mixing herbs and drugs that have opposite actions. Other agents may alter the way a medication is handled by the body. For example, St. John’s wort, a natural remedy for depression, may reduce the effectiveness of some drugs by causing them to be metabolized too quickly. When in doubt, check with your pharmacist about herb/drug interactions. In addition, herbs that can thin blood, such as dong quai, feverfew, supplemental garlic, and ginger could cause problems if taken before surgery as could herbs such as ginseng and licorice root that affect heart rate and blood pressure. Sedative herbs like kava and valerian may increase the effects of anesthesia. It is best to stop taking any of these herbs at least 10-14 days before surgery, and be sure to tell your physician that you’ve been taking them.
Another well know spice in the kitchen cinnamon is also known for it's medicinal properties. While not really an herb I still think it's important to list it in our list of herbs and their uses. Cinnamon actually comes from the inner bark of a tree in the laurel family. It's been used for centuries and was a hot commodity for trade in ancient times. In fact during the first century A.D. in Rome cinnamon was 15 times more expensive than silver. The Chinese were probably the first to use cinnamon as a medicinal herb and used it to treat fevers, and diarrhea. In more modern times cinnamon has been found to stabilize blood sugar levels in diabetics, as it has an insulin kind of effect.