Most adults take at least one prescription medication for example, for high blood pressure, high cholesterol levels, depression, asthma, diabetes, COPD, or a variety of other reasons, but most people (and many healthcare providers) are totally unaware that medications can have direct negative effects on sexual functioning and performance. This informative and timely book written by three well-known medications experts explores the chemistry behind sexual arousal in men and women and clearly and authoritatively explains how the common categories of prescription and over-the-counter medications and abused substances might be the reason for their declining sexual performance or even interest.