Pharmacology Flashcards
study of substances that interact w/ living system through chemical process
Pharmacology
How the body handles the drug
Pharmacokinetics
how the drug affects the body
Pharmacodynamics
Study of the relation of the genetic make-up to the response to specific drugs
Pharmacogenomics / Pharmacogenetics
Procurement, preparation and dispensing of drugs.
Pharmacy
Diagnosis, treatment and prevention of diseases.
Pharmacotherapeutics
the study and origin of crude drugs produce from plants, microbes, animals.
Pharmacognosy
Dosage of drugs; amount of drugs to be given
Posology
Amount of drug to be taken at 1 time; “500mg”
Dose
Amount of drug, complete signa.
Dosage
Most commonly used rule, weight in pounds “wt (lb) x adult dose / 150 = infant dose”
Clark’s rule
Age in months
Fried’s rule
Age in year
Young’s rule
Age at your next birthday
Cowling’s rule
Age in year for adult
Bastedo’s rule
the study of drug’s biologic toxins/harmful effects
Toxicology
Lead poisoning
Plumbism
Mercury poisoning
Acrodynia
Silver poisoning
argyria
Copper toxicity
Copperidius
Decreases the absorption of toxic substances
Activated charcoal
Promotes emetic effect/vommiting
Syrup of ipecac
Fluoride overdose, give;
MILK
drug that causes tooth staining, should not be given 6 months pregnant to 9 y/o child.
Tetracycline
Increase/too much in vitamin A/retinol results in
Clefts
Category A is the safest drug to prescribe to pregnant patients, not indicated or the most dangerous drug is category X, Lidocaine is category?
B
Atomic/molecular structure of a compound
Chemical name
Manufacturer’s name
Trade name
Official name of the drug
Generic Name
Generics law of 1988, AN ACT TO PROMOTE, REQUIRE AND ENSURE THE PRODUCTION OF AN ADEQUATE SUPPLY, DISTRIBUTION, USE AND ACCEPTANCE OF DRUGS AND MEDICINES IDENTIFIED BY THEIR GENERIC NAMES
RA 6675
comprehensive Dangerous drug act of 2002
RA 9165
Narcotic analgesics are used in medicine as strong analgesics, for relief of severe or chronic pain, an example of street drug that is contraindicated and illegal drug is:
HEROIN
Combined effect of 2 chemical is much greater than the sum of the effects of each agent given alone
2+2 > 4
synergism
Combined effect of 2 or greater than chemical is equal to the sum of the effect of each agents given alone
2+2 = 4
Addition
when 1 substance that does not normally have a toxic effect is added another chemical, it makes the 2nd chemical much more toxic.
0+2 = toxic effect
Potentiation
Opposite of synergism
Antagonism
Antidote for Acetminophen
N-Acetylcysteine
Antidote for narcotic analgesic
Naloxone “Narcan”
Antidote for Warfarin
Vitamin K
Antidote for Benzodiazepine
Flumazenil
Antidote for anti-cholinergic, anti-muscarinic
Physostigmine
Highest potential of abuse is a schedule number
1
- Never prescribed: marijuana, LSD, heroin, mescaline.
1st local anesth. used
Cocaine
All local anesth. are vasodilators except
Cocaine
the only local anesth. that is used for anti-arrythmia.
Lidocaine
DOC for anaphylactic reaction
Epinephrine
DOC for acute seizure attack
Diazepam
(Sedative, anticonvulsant)
Brand name of diazepam
Valium
herbal medicine that has High fluoride content
Tsaang Gubat
Anti-hypercholesterolemia
Simvastatin (-statin)
Herbal medicine: Yerba buena is a
Analgesic
Herbal medicine good for antiseptic/mouthwash
Bayabas
Movement of drug from site of administration to central compartment & to its exent
Absorption
Amount of therapeutically active drug that reaches the systemic circulations. Responsible for effectiveness and safety of medications.
Bioavailability
Lipid-solubule =
Absorbable
most convenient, easiest safest, most unpredictable, least effective, simplest route of administration
ORAL
Solid, breakdown into smaller parts
Disintegration
Dissolved into liquid
Dissolution
Absorption happens in?
small Intestine
Normal gastric emptying is __ hrs
rate at which drug is delivered to small intestine
4
Function of stomach?
Digestion
Rapid uptake and metabolism of an agent into inactive compounds by the liver, after enteric absorption and before it reaches systemic circulation.
1st Pass effect
Main organ for metabolism
Liver
Bypasses the hepatic circulation, no 1st pass effect, high bioavailability.
Sublingual
-under your tongue
Bioavailability is unpredictable
Rectal
Main site of gas exchange
Alveoli
Local anesth. administered topically
Best
Benzocaine
Topical
Tetracaine
Local Anesth.
Lidocaine
Allows titration of drug, 100% bioavailability rapid and complete -> Fastest onset of action.
Disadvantage: Overdose
Intravenous
Area for intramuscular administration for children
Vastus lateralis
Area for intramuscular administration for adult
Deltoid - Fast onset
gluteus maximus.
Subcutaneous administration is administered in
Hypodermis 45degrees
Best site of administration of Insulin
Abdomen
Longest time for the absorption of medication
INTRADERMAL
- used in skin testing
- always bevel up w/ wheal formation
- 0-15 degree
Higher to lower concentration
Passive diffusion
DOC for parkinsons disease
Levodopa
Cell drinking, uptake of macromolecules
Pinocytosis
cell eating is
Phagocytosis
Ability of the drug to move from the circulatory system to its target tissues
Distribution
Chemical inactivation of drug to a more soluble compound essential for drug elimination
Metabolism or also known as “Biotransformation”
most common reaction in your drug metabolism
Reduction oxidation process.
most important stage: Oxidation
Main/most important organ for excretion
Kidney
Most commonly used kidney function test
Creatinine clearance, BUN,
Most specific/definitive kidney function test- Inulin clearance
lidocaine, erythromycin excretes in
BILE
Drug that cause cholestatic hepatitis
Erythromycin Estolate
Time required to change the amount of drug in the body into 1/2
Half-life
Amount of drug eliminated is dependent on the concentration of drug in plasma fluid
1st-Order kinetics
Amount of drug eliminated is independent on the concentration of drug in plasma fluid
Zero kinetics
Rate at which the active drug is removed from the body (L/hr)
Clearance
Ability of drug to bind to receptors
Affinity
Ability of drug to produce a physiologic change during drug-receptor interaction
Intrinsic activity
Strongest bond and irreversible
Covalent bond
Weakest type of bond
Hydrophobic
Drug that binds and activates a receptor
Agonist
Drug that binds to a receptor but does not cause activation: Intrinsic activity 0
Antagonist
Unusual response to a drug which cannot be explain by known mechanism
Idiosyncrasy
unknown cause
Idiopathic
Decreased responsiveness after prolonged drug administration
Tolerance
form of tolerance Rapid decrease in responsiveness
Tachyphylaxis
Adverse effect idiosyncratic effect is type
B
expected effect in therapeutic dose
Side effect
unexpected effect outside their dose
Adverse effect
Cell mediated type of hypersensitivity reaction
Type 4 - Delayed hypersensitivity reaction
Cell that is in charge for cell mediated immunity
T-Cell (t-lymphocytes)
Type of hypersensitivity reaction that are antibody-mediated.
TYPE
1 - Anaphylaxis
2 - Cytotoxic
3 - Immune complex
antibodies came form?
Plasma cell
Plasma cell came from?
B-cell (B-lymphocytes)
B cell is in charge for _____ immunity
Humoral
Mast cell is the richest / major source of?
Histamine
DOC for anaphylactic shock/reaction
Epinephrine
SLE, Rheumatoid arthritis, Glomerulonephtitis, serum sickness, local arthus reaction is what type of hypersensitivity reaction?
Type 3 immune complex
anemia, thrombocytopenia is responsible for what type of hypersensitivity reaction
Type 2 - Cytotoxic
contact dermatitis, allograft reaction, thyroiditis is what type of hypersensitivity reaction
Type 4 - delayed
Prescription writing:
Identification of PX: name, address, date, age.
Superscription
Prescription writing:
Body, name of medication, dose.
Inscription
Instruction to pharmacist, quantity of drug.
Subscription
Instruction to patient, dosage. Signatura.
Transcription
BID
two times a day
TID
Three times a day
QID
Four times a day
PRN
as needed
HS
Hours of sleep
STAT
immediately
PO
Orally taken
AC
Before meals
PC
after meals
OS
Left Eye
O - EYES
A - EAR
D- Right
S - Left
U - Both
OU
Both eyes
O - EYES
A - EAR
D- Right
S - Left
U - Both
AD
Right ear
O - EYES
A - EAR
D- Right
S - Left
U - Both
1 tablespoon is equivalent to
3 teaspoon or 15ml
1 Grain - 60 mg
1 Teaspoon - 5 ml
1 tablespoon - 15 ml
1% solution - 1g/100ml
1 cc - 1ml (10cc = 10ml)
60 drops “GTT” - 1 teaspoon
1 drop/gtt - 0.06ml
8 ounce - 1 cup