Clini Launch Research Institute

  Ever wondered why your doctor switches you from one blood pressure pill to another 'similar' one? That's drug classification at work—and it could be the difference between effective treatment and serious side effects.   Pharmacology isn't about memorizing endless drug names. It's about understanding why medications work, how they're grouped, and what makes one drug different from another in the same family.   Let's break down what actually matters.   The Foundation: Two Core Concepts   Before we classify anything, you need to understand the two pillars of pharmacology:   Pharmacokinetics = What your body does TO the drug   Think: How it absorbs, distributes, metabolizes, and eliminates paracetamol from your system.   Pharmacodynamics = What the drug does TO your body   Think: How paracetamol reduces your fever and relieves pain.   These concepts explain the complete journey of any medication—from ingestion to effect to el...