Definition: Drug addiction, also known as substance use disorder (SUD), is a chronic, relapsing brain disease characterized by compulsive drug seeking, continued use despite harmful consequences, and long-lasting changes in the brain. It is both a complex brain disorder and a mental illness. Â Types of Addictive Substances 1. Opioids: Heroin, …
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Central Nervous System (CNS) Stimulants: Definition, Classification, Mechanism of action, uses and Side effects
Definition CNS stimulants are a class of drugs that enhance the activity of the brain and spinal cord, leading to increased alertness, energy, and attention. They can affect various neurotransmitters and are used therapeutically for conditions such as attention deficit hyperactivity disorder (ADHD), narcolepsy, and certain cases of depression. Â Classification …
Local Anesthetic Agents
Local anesthetic agents are medications used to induce reversible loss of sensation in a specific area of the body, without causing loss of consciousness. They are widely employed in various medical procedures to alleviate pain and discomfort. Here’s a detailed note covering their definition, classification, pharmacological actions, doses, indications, and …
Therapeutic activity and pharmaceutical applications of alkaloids
Alkaloids, a diverse group of naturally occurring organic compounds, exhibit various therapeutic activities. Many alkaloids have been harnessed for their pharmacological effects and find applications in various pharmaceutical formulations. Here’s a detailed note on the therapeutic activity and pharmaceutical applications of alkaloids: 1. Analgesic and Antinociceptive Activity – Examples: …
Adrenergic drugs
Adrenergic drugs, also known as adrenergic agonists or sympathomimetic drugs, are medications that mimic or enhance the effects of norepinephrine and epinephrine, which are neurotransmitters and hormones that activate adrenergic receptors in the body. Adrenergic receptors are part of the sympathetic nervous system and play a role in the “fight …
