I live in Mexico and just started a similar product called Kuka Flex Verde.
Started yesterday morning with first pill and last night before bed 12 hours later, no pain this morning from PMR. Will continue until I see my doctor on the 18th. I cannot take prednisone so this has been the only thing so far that has helped my pain. Not sure it is available in the USA. Will keep you updated as to what the doctor says but need to take something to keep moving.