THE FUTURE
Many of the needle free technologies are in the growth stage. Companies are working on producing devices that are harmless, easier to use & can deliver more types of medicines. Inhalers, nasal sprays, forced air injectors and patches are being developed. In the near future, genetically enhanced foods may prove as an alternative for the delivery of vaccines and other drugs. These include foods like bananas and tomatoes. Actually, bananas are looked as carriers for vaccines to defend against the Norwalk virus and tomatoes for protection against hepatitis B. Besides these novel delivery systems, scientists are also investigating methods for producing long lasting drugs that will minimize the number of needle injections [35,36].