THE INVENTION RELATES TO COMPOUNDS OF FORMULA I AND PHARMACEUTICALLY ACCEPTABLE DERIVATES THEREOF, COMPOSITIONS COMPRISING AN EFFECTIVE AMOUNT OF A COMPOUND OF FORMULA I OR A PHARMACEUTICALLY ACCEPTABLE DERIVATIVE THEREOF, AND METHODS FOR TREATING OR PREVENTING A CONDITION SUCH AS PAIN, UI, AN ULCER, IBD AND IBS, COMPRISING ADMINISTERING TO AN ANIMAL IN NEED THEREOF AN EFFECTIVE AMOUNT OF A COMPOUND OF FORMULA I OR A PHARMACEUTICALLY ACCEPTABLE DERIVATIVE THEREOF.