Yes. There are many stop smoking aids that can be bought over the counter. Most of these products work by replacing the nicotine without all the other chemicals that are found in tobacco.
These include patches, gums, nasal sprays and lozenges.
There are also vape products (E-cigarettes) that deliver nicotine. Results from these NRT (nicotine replacement therapies) are positive, [popover id=ref3] but some find they just prolong the addiction.