If you use herbal supplements, it is best to do so under the guidance of a medical professional who has been properly trained in herbal medicine. Now, I am thinking about seeing my doctor today. For example, the herbs kava and comfrey have been linked to serious liver damage. Kaya bili na ng KOI HERBAL CAPSULE! How to drink koi herbal capsule very cautious if you are pregnant or nursing. Koi herbal capsule is safe ?