PHARMACODYNAMICS 1 Flashcards
Mechanism in which drug exert its effects without binding to proteins/receptors
Non-Target Protein Mediated
Mechanism based on colligative properties or depend on the no. of solute particles
Colligative Mechanism
Example of a drug that has colligative mechanism
Mannitol (Osmotic diuretic)
Mechanism also known as Direct chemical interaction
Chemical Reaction
Why are aluminum hydroxide and magnesium hydroxide are combined together in antacids?
To cancel out their effects. Aluminum (constipation) magnesium (diarrhea)
They are used in heavy metal poisoning
Chelation / Chelating agents
Penicillamine (Heavy metal antagonist) is used to treat?
Wilson’s disease (copper poisoning)
Chelating agent used to treat iron poisoning
Deferoxamine
Dimercaprol or British anti-Lewisite is a chelating agent that is used to treat?
Arsenic/Gold/Lead/Mercury poisoning
Drug that is an example of ion exchangers that is used to treat hyperlipidemia / lower bile salts
Cholestyramine
Drug used to treat cyanide poisoning + chemical result
Sodium thiosulfate
Sodium thiocyanate
(T/F) Counter fit incorporation produces an effect on enzymes
False (has no effect on enzymes)
Also known as false incorporation
Counterfeit incorporation
Examples of counterfeit incorporation drugs
5-FU/Fluorouracil (Antitumor) (replaces uracil)
Carmustine (Antitumor) (will bind with guanosine)
(T/F) Counterfeit incorporation is prone to cell destruction/ altered biologic activity
True
Counterfeit incorporation drug that is an antibiotic that inhibits folic acid (B9) in bacterial cells
Sulfonamides
Refers to biologic site of action of drug proteins
Target Protein Mediated
Proteins that maintain the cells shape “Exoskeleton”
Structural proteins (Microtubule)
Examples of target protein mediated that inhibits microtubule synthesis
Griseofulvin (Antifungal)
Vinca Alkaloids (prevents polymerization tubules)
Colchicine (Anti-inflammatory)
Etoposide (Anticancer)
Proteins that mediates transmission of endogenous chemical signals
Regulatory Protein
Example of regulatory molecules
Transports/Channels
Enzymes
Carrier Molecules
Receptors
Regulatory: they are proteins in transmembrane signaling and ionic composition regulation
Ion Channels / Transports
Ca Channel: L-Type is locater in?
Cardiac Muscles
Na+ channels are usually related to the muscles. what are the examples of Na channel blockers
Local Anesthetics
Carbamazepine
Phenytoin