University:
York University
Course:
CHEM 2550 | Pharmacology for Health Sciences
Academic year:

2022
Views:

329

Pages:

1
Author:

Niklas

Pharmacodynamics Primary effect (1): Intended / desired response Secondary (2) effect: All other effects besides primary effect- may be desirable/ undesirable. Ex: Morphine ↓ pain ↑ sleepiness. Receptor Theory? How do drugs produce effects? They interact w/ receptor site. V 0 cell Agonists "Turn receptors on" activate receptors by binding w/ receptor site. Ex: B2 agonists. ↑ bronchodilators. Antagonists: "Turn receptors off" - blocking inhibiting response "block" something from happening. EX NAVOXONE Mechanism of Drug Action Stimulation: Enhancement of activity. Ex epinephrine ↑ HR + BP Depression: Reduction of activity Ex: Barbituates. CNS depressants. 3 Imitants: Produces noxious (uncomfortable) affect. Ex: Alcohol on cut/sore Replacement: Replace essential body compounds. Ex: insulin Cytotoxic: Kill invading parasites / cancers. Ex: Anti cancer, antibiotics. Modification of immune status