Pharmacology is the science of drugs and their effect on living systems. You can find pharmacology present everywhere. In medicine cabinets, when you visit the dentists and when you take any type of medication. Pharmacology is also responsible for painkillers, caffeine drinks and antibiotics. It is the science of what is happening to your body and to the drug itself.
Every medication we take alters the chemistry within our body. The role of pharmacology is to understand why these changes are happening, allowing us to develop better drugs.