As a narcotic, opioid (morphine-like) medication, hydrocodone has significant abuse and addiction potential. Many people find hydrocodone to be quite addicting.
Hydrocodone abuse is common for a few different reasons. Hydrocodone products are readily available -- this drug is the most frequently prescribed opiate in the United States. Additionally, hydrocodone products are usually fairly inexpensive (especially in generic form). Also, these products are categorized with less stringent rules, compared to many other opiates (such as morphine or oxycodone); this means that prescriptions for hydrocodone products can be phoned or faxed to a pharmacy and may have refills, unlike many other opiates. It also means that healthcare providers are more likely to prescribe the medication.
Hydrocodone addiction may also be common because people often believe that it is safer or perhaps less shameful or embarrassing to abuse prescription medications, compared to "street" drugs. It may also be easier for people to deny (to themselves and others) that they have a problem.
(Click Hydrocodone Addiction to learn more about the dangers of hydrocodone abuse and for a list of signs and symptoms that may indicate an addiction to this medication.)