For a new drug to reach the market 4 phases must be completed 12 steps and about many years of testing before the drug prooves that it is 95% effective or more in some cases this proves :

This proves that the production of drug is very tough job.

Explanation:

This proves that new drug will take huge amount of time to reach to the market after complete evaluation of the drug. This drug passes through various phases in order to check its effectiveness for the disease for which it is formed. If the drug has effectiveness more than 95%, this drug will be allowed to supply to the market otherwise, its supply will be stopped.

wellness is the state of being in good health, especially as an actively pursued goal.