Buying Norco, Percocet, and Vicodin over the counter online is also a violation of federal and state drug laws. The prescription of these drugs is strictly regulated, and they are only supposed to be sold by licensed pharmacies with prescriptions from a practicing physician. Purchasing these drugs without a valid prescription from a licensed practitioner is illegal, and it can lead to a criminal offense. If caught, offenders can face stiff penalties, including fines and imprisonment.