Principles of Drug Therapy Flashcards
Pharmacology? Drugs?
Study of drugs and their interactions with living systems
Any chemical that can affect living processes
Clinical pharmacology? Therapeutics?
Study of drugs in humans
Use of drugs to diagnose, prevent, or tease disease or to prevent pregnancy. The medical use of drugs.
Ideal drug?
Effectiveness, safety, seletivity. Reversible action, predictability, ease of administration, freedom from interactions, low cost, chemical stability, simple generic name. NO DRUG IS IDEAL
Factors that determine the intensity of drug responses?
Administation, pharmacokinetics, pharmacodynamics
Pharmacokinetics?Pharmacodynamics?
Pharmacokinetics is the movement of drugs, the way they move through the body, how it’s absorbed, distributed, metabolized by the liver, and excreted by the kidneys.
Pharmacodynamics is the impact of the drugs on the body.
Controlled substance act of 1970
Class 1: high abuse potential, not currently used for treatment: Heroin, LSD
Class 2: High abuse potential with med uses: morphine, demerol
Class 3: Less abuse such ah lortab
Class 4: Low abuse such as Librium
Class 5: Limited abuse such as Lomotil
Stages of new drug development
Preclinical testing
Clinical testing
Clinical testing?
Phase 1: Evaluating the drug’s metabolism, pharmacokinetics, biologic effects
Phase 2: Therapeutic effectiveness
Phase 3: Safety
Phase 4: Post-marketing surveillance
Chemical drug name
Description of its composition and molecular structure
Generic drug name
Name given by the manufacturer who first develops the drug with approval by USAN council. Only one generic name, lower case
Trade/brand drug name
Name under which a manufacturer markets a drug. Followed with R in a circle, capitalized
Classifications of drugs?
Therapeutic class: the therapy that the drug performs.
Pharmacologic class: the drugs mechanism of actions.
Drug may belong to more than one class.
OTC drugs
Purchased without a prescription. Label must contain plain language, user-friendly format, type large enough to read.
The type includes active ingredients, uses, warnings, directions, inactive ingredients.