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The side effects of cyproterone acetate (CPA), a steroidal antiandrogen and progestin, including its frequent and rare side effects, have been studied and characterized.It is generally well-tolerated and has a mild side-effect profile, regardless of dosage, when it used as a progestin or antiandrogen in combination with an estrogen such as ethinylestradiol or estradiol valerate in women.
A 2013 meta-analysis concluded that every use of birth control pills is associated with a modest increase in the risk of breast cancer (relative risk 1.08) and a reduced risk of colorectal cancer (relative risk 0.86) and endometrial cancer (relative risk 0.57). Cervical cancer risk in those infected with HPV is increased. [124]
The relative risk was similar to that found for current or recent COCP users (RR 1.16), and, as with COCPs, the increased relative risk decreased over time after stopping, vanished after 10 years, and was consistent with being due to earlier diagnosis or promoting the growth of a preexisting cancer.
Scientists hope findings signal a major breakthrough in tackling leading cause of cancer deaths Lung cancer pill ‘halves risk of death’ Skip to main content
There is a mixed effect of combined hormonal contraceptives on the rates of various cancers, with the International Agency for Research on Cancer (IARC) stating: "It was concluded that, if the reported association was causal, the excess risk for breast cancer associated with typical patterns of current use of combined oral contraceptives was ...
Cancer patients can ward off waves of vomiting after treatment with a relatively cheap anti-nausea pill, but some are running into coverage limits. Doctors say restrictions on the number of tablets patients receive can hurt care. Pharmacy benefit managers say their limits guard against overuse, and they offer workarounds to get more tablets.
People who took the pill had significantly better progression-free survival, meaning that the cancer did not get worse, compared to patients who received chemotherapy, according to a press release ...
However, the overall risk of breast cancer in users and nonusers remains low. [36] Research has also shown a link between cervical cancer and long-term use of combined hormonal contraception, particularly in women with chronic HPV infection of the cervix. [37]