Pharmaceutical Science
Pharmaceutical science encompasses the design, development, testing, and regulation of medicines to treat disease, drawing on chemistry, biology, and clinical research.
What You Need to Know
Key Concept Diagram
Drug discovery involves identifying compounds that interact with biological targets (receptors, enzymes)
Preclinical trials test safety and efficacy in cell cultures and animal models before human trials
Clinical trials have three phases: Phase I (safety), Phase II (efficacy), Phase III (comparison with existing treatment)
The blood-brain barrier limits which drugs can affect the central nervous system
Drug metabolism in the liver converts drugs into more water-soluble compounds for excretion
Key Vocabulary
Clinical trial
A research study testing a drug in human volunteers to assess safety and effectiveness
Receptor
A protein on a cell surface or inside a cell that binds to a drug or signalling molecule
Blood-brain barrier
A protective barrier between the bloodstream and the brain that limits entry of substances
Pharmacokinetics
The study of how drugs are absorbed, distributed, metabolised, and excreted by the body
Knowledge Check
Select the correct answer for each question. Click "Check Answer" to see if you are right.
Question 1
In drug development, Phase III clinical trials compare the new drug with:
Question 2
The blood-brain barrier is significant in drug development because:
Question 3
Preclinical trials are conducted before human trials to:
Key Concepts Summary
- ●Drug discovery involves identifying compounds that interact with biological targets (receptors, enzymes)
- ●Preclinical trials test safety and efficacy in cell cultures and animal models before human trials
- ●Clinical trials have three phases: Phase I (safety), Phase II (efficacy), Phase III (comparison with existing treatment)
- ●The blood-brain barrier limits which drugs can affect the central nervous system
- ●Drug metabolism in the liver converts drugs into more water-soluble compounds for excretion