I am prone to really painful foot cramps that can keep me up at night. I tried Theraworx and while it did eventually help, I had to repeat the spraying several times over about 15 minutes period because as soon as the cramps started to pass they then came back. Admittedly, several sprays a number of times did finally seem to do the job. However, I had been using the leg cramp pills at the drug store and they took just about just as long to work and were a lot cheaper. Maybe it works better for leg cramps though, but I don't experience those.
Bottom Line: Yes, I would recommend this to a friend