The most widely prescribed drugs for multiple sclerosis (beta interferons) have been shown to be only partially effective while carrying high costs and adverse side-effects. However, statins, angiotensin converting enzyme (ACE) inhibitors, and proton pump inhibitors (PPIs), which are effective against lipids, blood pressure, and acid, respectively, are safe, relatively inexpensive, and also have anti-inflammatory and immunomodulating properties that may be beneficial in the treatment of MS.