intro to pharm Flashcards
what are the 3 different names for drugs?
- chemical (what the drug is made up of)
- generic name (always lower case, cheaper than brand names, a pharmaceutical company names these drugs)
- trade/ brand name (begin w/ capital letter, commercial or property name, could have more than 1 name)
what is pharmacokinetics?
describes the absorption, distribution, metabolism, and excretion of drugs
what are the 4 processes of pharmacokinetics? (ADME)
- absorption: how will it get in, movement of the drug from site of administration to various tissues of the body
- distribution: where will it go, movement of a drug by circulatory system to intended site of action
- metabolism (biotransformation): how is it broken down, the change that occurs in a drug into a more of less potent form
- excretion: how does it leave, the elimination of a drug or metabolites through varies part of the body
where does metabolism primarily take place?
the liver
what is first pass effect?
when drug metabolism occurs before the drug enters the bloodstream (Having it’s therapeutic effect)
what is drug toxicity?
occurs when drug level exceeds the therapeutic range and may be from drug overdose (intentional, non-intentional)
what is the difference between potency and efficacy of a drug?
potency: amount of drug needed to elicit a certain response (a drug that is more potent will deliver a therapeutic affect at a lower dosage)
efficacy: the maximal response that can be elicited by the drug (maximal response to symptoms)
what is agonist and antagonist drugs?
agonist: drugs that occupy receptors and activate them
antagonists: drugs that occupy receptors but do not activate them. these block receptor activation by agonists
what is a synergistic effect of 2 drugs?
when 2 drugs work together and the combined effect is greater than the effect of the 1 drug alone
what is the benefit of transdermal medications?
delivers constant, controlled amount of medication into the skin and into the bloodstream which then achieve a prolonged systemic affect
what are the 6 rights of medication administration?
- right patient
- right medication
- right dose
- right time
- right route
- right documentation
what are the routes for administration and time until meds are effective?
- intravenous (IV): 30-60 sec
- intramuscular (IM) 10-20 mins
- subcutaneous (SQ) 15-30 mins
- oral: 30-90 mins
- transdermal: variable, minutes to hours
what is the highest abuse drug category?
schedule 1
what is the lowest abuse drug category?
schedule 5
what is drug half life?
the amount of time it takes for amount of drug in body to be reduced by 1/2