Following a moderate use of molly pills or other molly substances, an individual will most likely first experience euphoria. This euphoria characterizes a classic “high.” Individuals may also experience side effects like sleep problems, anxiety, and irritability. However, more aggravating and long-lasting side effects result from consuming molly regularly as well. This does not constitute molly that is pure MDMA, but that which has been mixed with other substances that may be dangerous when combined with MDMA.