I had some success with it a few years ago. I do not know why the time limit of two weeks ask the pharmacist. Other issues came into play like major surgery. Then all of my med were changed. Plus compounding the issue was that it was a workers comp injury so the literally controlled everything, to the point of telling me what medicine "I had to take and threatened my job if I did not follow their quacks advice" Give it a try it might work for you. Everyone is different when it comes to medication. Best of luck.