Before a drug is sold and released to the public, what measures must scientists take to ensure the safety of a drug and why are these steps taken?

Phase I- The drug must be tested on animals and tissue culturesPhase II - The drug is tested on healthy volunteers in small dosesPhases III- The drug is tested on sick patients in small dosesSmall doses are used intially to check that the drug is not toxicEfficacy of the drug is monitoredThe trial is double blind neither doctor nor patient knows who has the drugA placebo is given to some patients

SG
Answered by Saranya G. Biology tutor

2443 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

What is the difference between mitosis and meiosis?


Describe how a nerve impulse travels from neurone A to neurone B.


What are the word and chemical equations for photosynthesis?


Which of these is a correctly balanced equation for respiration? C6H12O6 + 3O2 → CO2 + 3H2O C6H12O6 + 6O2 → 6CO2+ 6H2O C6H12O6 + 6O2 → 6CO2 + 3H2O


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences