Buy Butalbital Online to Approved Pharmacy CarrY-ouT Get fast, hassle-free access to this effective pain reliever without a prescription and receive overnight or same-day delivery options. With a trusted pharmacy service, get reliable and swift shipping straight to your home. Butalbital is a medication that belongs to the class of drugs known as barbiturates. It is often used in combination with other ingredients, such as acetaminophen or caffeine, to treat tension headaches and migraines. Butalbital works by relaxing muscle contractions and reducing pain and tension, making it particularly effective for managing acute headaches.