AstraZeneca Pharmaceuticals and Bristol-Myers Squibb were hit with 14 suits in the District of New Jersey on Tuesday claiming that users of diabetes drug saxagliptin face elevated risks of heart failure as a result of using the drug.

According to the plaintiffs, the defendants failed to warn users that the drug—sold under the names Onglyza and Kombiglyze XR—can cause cardiac arrest, congestive heart failure and death.