Adderall can cause some unexpected side effects, including increased sex drive. In one study, nearly half of participants reported feeling more sexually aroused while taking Adderall. The drug can also lead to increased levels of energy and confidence, which may make people more inclined to engage in sexual activity. Additionally, Adderall may make it difficult to orgasm, leading to longer, more intense sex. While some people may enjoy these side effects, they can also be disruptive or even dangerous. For example, people who are not expecting increased libido may find themselves engaging in risky sexual behavior. As such, it is important to be aware of the potential risks and side effects of Adderall before taking the drug.