drugs imply--- narcotic drugs
medicines imply---therapeutic drugs available on prescription
OTC medicines--- therapeutic drugs available without prescription over the counter
pharma products imply---compounded and dispensed drugs in a pharmacy
See the term "Product development" may mean differ than "drug development "in Pharmacy World . eg in case of Asthama patients use of "Aerosol inhaler" (The medication is typically stored in solution in a pressurized canister that contains a propellant or suspension. ... On activation, the metered-dose inhaler releases a fixed dose of medication in aerosol form through the actuator and into a patient's lungs). So this Pharmaceutical product consists of 2 parts - Aerosol medicine( which is the suspension drug) and Inhaler device ( which is the drug delivery device).
Sometimes it may happen that the newly invented aerosol medicine may require the drug development whereas the inhaler device may not and other times it may hapen that the already established old Aerosol medicine may not require development whereas the newly invented Inhaler drug delivery device may require the development.
So when we say Product development , it may consists of both drug and device development or atleast one of them.
Now in case of only drug development
Preclinical trials mean animal testing and Post marketing surveilance (PMS) means Phase IV trials on humans.
Though I agree that Animal testing results may differ from Human testing results....But many times it happens that the Animal testing results extrapolate to Human testing results..... Therefore regulatory affairs professionals are concerned with post-market surveillance by the FDA at the beginning stages of product development which doesnt mean Preclinical trials (Animal testing).
