Yes, I very often take marijuana specifically as a pain reliever, it helps me a lot. I really don't like to take medications on a regular basis, because they affect the liver and the kidneys very much. So for me personally, this is a great way out, especially for those who really have liver and kidney problems. I can recommend you as well an article on this subject https://www.smokeandpoke.com/blog/what-are-marijuana-benefits-and-uses/, as there is a lot of useful information about marijuana as a painkiller.