FreeNotes
Antibiotics: Definition: Antibiotics are a class of drugs used to treat infections caused by bacteria. They either kill bacteria or inhibit their growth and reproduction. Antibiotics are not effective against viral infections, such as the common cold or influenza. Discovery: The first antibiotic, penicillin, was discovered by Alexander Fleming in 1928. This discovery revolutionized medicine … Read more
Addictive drugs are substances that can lead to physical or psychological dependence, causing individuals to crave and use them despite harmful consequences. These substances often affect the brain’s reward system by releasing chemicals that create feelings of euphoria or pleasure, leading to repeated use and, over time, dependence. Types of Addictive Drugs: Stimulants: Examples: Cocaine, … Read more
Principal Usage of Common Medications Painkillers (Analgesics): Principal Usage: Painkillers are used to relieve pain caused by a variety of conditions, such as injuries, surgeries, chronic pain, or illnesses. They can be classified into: Non-prescription (Over-the-counter): These include acetaminophen (Tylenol) and nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen (Advil, Motrin), which help reduce pain and inflammation. … Read more
Drugs are chemical substances that, when consumed or administered, can alter the function of the body, either by enhancing or inhibiting biological processes. They can have therapeutic effects (such as treating or preventing diseases) or cause alterations in mood, perception, and consciousness. Drugs can be classified based on their effects, such as medicinal drugs (used … Read more