Best place to buy hydrocodone online; accessing PayPal. Buy hydrocodone online. Hydrocodone is used to treat moderate to severe pain. The risk of addiction and dependence is high. When coupled with other substances, especially alcohol, or used in large quantities, it can cause respiratory discomfort and diarrhea. The combination medication Buy Hydrocodone Online is used to treat moderate to severe pain. It contains two types of painkillers: acetaminophen, a non-opioid, and hydrocodone, an opioid (narcotic). Hydrocodone's impact on the brain alters how your body perceives and responds to pain. Acetaminophen reduces fever as well.