Natural or herbal remedies are becoming more and more popular for all sorts of ailments, from arthritis and menopause symptoms to prostate problems, Alzheimer's disease and cancer. But older people can put themselves in danger by taking herbs that turn out to interact badly with their other medications. Many seniors don't tell their doctors that they're trying an herbal remedy, but that can be a big mistake. Always let your doctor know everything you're taking -including herbs, vitamins, minerals and over-the-counter medications. Here are some risky combinations of drugs and natural remedies to avoid:

• Gingko biloba, taken to prevent or treat Alzheimer's disease, can cause excessive bleeding, especially if you're taking ASA (Aspirin) or warfarin every day to prevent blood clots.
  
  
• Other herbs you shouldn't take if you're on warfarin are danshen, devil's claw, dong quai, garlic (in large amounts) and papaya.
  
  

• Glucosamine sulfate, a popular arthritis remedy, can block the effects of insulin, so be careful with it if you're diabetic or overweight.
  

• St. John's Wort, used to relieve depression, can interfere with many medications, including antidepressants and drugs used by people with heart conditions, AIDS or who've had organ transplants. It's best to avoid this herb if you're on antidepressants or any critical long-term medicines.

Remember, since many herbs do have important effects on our bodies, consider them in the same light you would as any medication or drug.