Is selling drugs illegal

It depends. Legal (prescription and non-prescription) drugs are generally sold and in pharmacies. Some people view alcohol and cigarettes (nicotine) as legal drugs.

The sale of drugs such as marijuana, cocaine, heroin etc. is illegal and, depending on the amounts being sold, can lead to extensive jail sentences and/or fines. not to mention the confiscation of any money and/or property as the proceeds of crime.