First off...Don't start your cycle. You need to have all of your post cycle therapy planned and obtained. Don't ever begin a cycle without already having everything you need for post cycle. Second you need to do some more research, if you aren't sure of what you need to take. Methyl Masterdrol is a Superdrol clone and Superdrol is notorious for being a very harsh supplement with lots of sides so you need to make sure you know exactly what your doing. Trying searching the post cycle therapy section and check out this website: Post Cycle Therapy. Also look at the logs for other people who have used Superdrol and its many clones and study what they used for post cycle.