The strong pain reliever hydrocodone is used to treat moderate to severe pain.. Both prescription and over-the-counter versions are offered. If you need hydrocodone, get it online. To purchase hydrocodone, most online pharmacies offer a secure checkout option. This indicates that all transactions are secure and encrypted to protect your personal data. When purchasing hydrocodone online it is important to choose a reliable pharmacy. Additionally, it is important to confirm that the online pharmacy is authorized to sell medications in your state before placing your order.