Hydrocodone is a very popular painkiller medicine that is especially used to relieve instant pain, it helps people who are suffering the high pain caused by cancer, it has several variants like Hydrocodone ( 5-325 mg, 10-325 mg, 10-500 mg, 10-650 mg, 10-660 mg) and many more variants are available in the market but it is very high price due to the powerful ness, but you can easily purchase Hydrocodone online with or without prescription and take it as you need, in general, the does of the Hydrocodone stay 3-4 hour in a human body, but some stages like liver problem heart problem and in cases of an elder it takes more time to leave.