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Jambheceutical definitions
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25
Pharmacology
Professional
12/08/2009

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Term
bioavailability
Definition
the relative amount of administered dose that reaches the general circulation and the rate at which it reaches the general circulation.

intravascular administration is 100% bioavailable vs extravascular (eg oral) which may not be
Term
absorption
Definition
process by which the drug molecules will proceed from the site of administration to the site of measurement.
Term
linear pharmacokinetics
Definition
the directly proportional relationship between the concentration of drug in the body and the dose administered.
Term
(drug) half life
Definition
How long it will take for 50% of the drug to disappear from body. 7 half-lives to eliminate 99% of med from body.
Term
peak plasma concentration
Definition
the highest plasma concentration of drug in the body for the dose that is administered.
Term
Pharmaceutics consists of what sciences?
Definition
Physical Pharmacy, Dosage Forms, biopharmaceutics, pharmacokinetics, Industrial pharmacy
Term
Physical Pharmacy
Definition
understanding and applying the principles of physical chemistry and mathematics in characterizing important properties of solid and liquid therapeutic agents as well as inactive ingredients. These properties are in turn used to help in development, formulation, manufacturing and evaluation of various dosage forms
Term
micromeritics
Definition
science and study of small particles. A part of physical
Term
cGMP
Definition
current good Manufacturing Practices
Term
GLP
Definition
good laboratory practices
Term
biopharmaceutics
Definition
the study of the factors influencing the bioavailability of a drug and the use of this information to optimize pharmacological and therapeutic activity of drug pdts.
Term
pharmacokinetics
Definition
the study of kinetics of absorption, distribution, metabolism and elmination (ADME) of drugs and their corresponding pharmacologic, therapeutic or toxic responses in man and animals
Term
Onset of Action
Definition
The time (units) at which the administered drug reaches the therapeutic range or it begins to produce the effect
Term
Duration of Action
Definition
the time span (units) beginning the onset of action up to the termination of action
Term
Therapeutic Range
Definition
the plasma or serum concentration (ug/ml; ng/ml; etc) range, within which, the drug is likely to produce the therapeutic activity or effect.
Term
Termination of Action
Definition
the time (units) at which the drug concentration in the plasma falls below the minimum effective concentration (MEC)
Term
adsorption
Definition
the accumulation/binding of atoms, molecules or particles on the surface of a material
Term
Delta Hv- Molar heat of vaporization
Definition
heat absorbed by 1 mole of liquid when it passes into the vapor phase. in cal/g or cal/mol
Term
Boiling Point
Definition
temperature at which vapor pressure of a liquid equals the atmospheric pressure
Term
Equilibrium/Saturation Solubility
Definition
MAXIMUM amount (mg, g) of a solute or drug that is present in a solution form per unit volume (mL or L) of a solvent at a constant temperature and pressure
Term
equilibrium condition
Definition
the condition when the rate of transfer of a solid in to the solvent and the rate of deposition of solute molecule from the solvent on to the solid crystal become equal
Term
solubility
Definition
the maximum amount (mg) of solute present in a solution form per unit volume (mL, L) of a solvent at a constant temperature and pressure, following the attainment of the equilibrium condition.
Term
polymorphism
Definition
phenomenon where a substance may be capable of xtallizing in more than one xtalline form.
Term
Enantiotropic
Definition
When the change from one polymorphic form to another form is reversible by varying temperature or pressure.
Term
Monotropic
Definition
When the transition from one (polymorphic) form to another takes place in only one direction, ie metastable to stable OR one polymorphic form is unstable at all temperatures and pressures.
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