is it safe to take Imitrex after lipo?

Medication interaction with the drugs you mentioned and liposuction do not pose a significant risk in most patients. As with any procedure, you should disclose to your surgeon what medications you take and then follow the pre and post operative care plan they create for you. Best wishes.

That probably won't be a problem if it is pure lipo, but you really need to check with your surgeon to get his/her recommendations as to what is safe to take and what must be avoided in the posstop period.