Onegaishimasu. Ibuprofen has been known to produce joint damage in the long run, so it is no magic formula to help with training. People need to know this, they also need to slow down and practice training in a slow and safe way. Everyone needs to adjust themself to the training. Developing an aikido body takes time and is a strong part of the practice.
Just to clarify..... I don't take IB all the time,
but it did help when my shoulder was injured. When I wasn't in so much pain, I could work on my rolling without being afraid and then when I was rolling better, it didn't hurt so much. (I am still a nube so I know nothing but am working on it)