Arthritis can be observed during or after
chemotherapy that involve drugs like doxorubicin, bleomycin, vinblastine, dacarbazine ect. In the TAC combination of chemotherapy drugs that you have stated, it has been used (among the others) Doxorubicin (originally called Adriamycin) that can be associated to arthritis. This kind of arthritis usually has a self-limited course and it resolves on its own although it may last several months before resolving spontaneously. Usually it is not an
inflammatory arthritis meaning that the joints are NOT red, swollen, or hot. If any of these symptoms develop, then it should be performed a detailed workup in order to detect a possible inflammatory arthritis, such as
rheumatoid arthritis (a very rare condition in this situation).
More over, I would suggest you to measure your bone mineral denisty (BMD) by
Dual-energy X-ray absorptiometry (DXA, previously DEXA) since in most of the patients that I have seen undergoing chemio, the pain is mostly due to the
Osteoporosis that have developed secondarily to the treatment with chemiotherapeutic agents.