Recent research has linked Pfizer's widely-used Depo-Provera birth control shot to massively increased risk of developing brain tumors — and hundreds of women are suing the pharmaceutical giant over it. According to a press release filed on behalf of the roughly 400 plaintiffs in the class action suit, the lawsuit claims that Pfizer and other companies who made generic versions of the injectable contraceptive knew of the link between the shot and developing brain tumors, but didn't properly warn users. The suit follows a study published by the British Medical Journal last year that found that people who took the […]