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Pharmaceutics
Parenterals III
31
Biology
Graduate
03/28/2012

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Term
maufacture
Definition
-obtain quality raw materials
-clean/sterilize equipment and containers
-control environment
-prepare bulk product
-filter
-fill
-lyophilize (only for lyophile products)
seal
-sterilize (if not feasible, aseptic process)
Term
lyophilization
Definition
water removal via sublimation from the frozen product
Term
lyophilization advantages
Definition
-processed as a liquid
-stability (processed without elevated temperature and under vacuum)(final product sealed under N2)
-rapid reconstitution
-flexibility in final concentrations
Term
lyophilization disadvantages
Definition
-equipment
-time
-cost
Term
sterilization
Definition
-destruction or removal of all living organisms and their spores
Term
sterilization methods
Definition
-steam
-dry heat
-filtration
-gas
-ionization radiation
Term
steam sterilization
Definition
-METHOD OF CHOICE
-conducted under an autoclave
-steam under pressure to reach 100+degrees C
-N/A for heat labile products, powders (may be damaged), oleaginous products (not penetrated by moisture)
Term
10lb pressure
Definition
115 deg
30 min
Term
15lb
Definition
122 deg
20 min
Term
20lb
Definition
127 deg
15 min
Term
dry heat sterilization
Definition
-conducted in ovens
-higher temp and longer duration than moist heat
-150-170 deg C for 2+ hours
-used when moist heat is not effective or suitable
-powders, oils
-dry apparatus or containers are required
Term
sterilization by filtration
Definition
-physical removal by membranes (0.2 micrometer pore size)
-suitable for heat labile drugs
-removes live/dead microbes and particles
-filter compatibility?
-low cost and fast?
Term
gas sterilization
Definition
-ethylene oxide or propylene oxide
-mixed with CO2 (less flammable)
-interferes with cell metabolism
-conducted in chambers or bags
-requires 4-16 hours
Term
sterilization by ionizing radiation
Definition
-electromagnetic radiation (gamma radiation)
-particle radiation (electron beam)
-requires special equipment and facility
-used for heat/moisture sensitive products
-damage biomolecules through energy activation and free radicals
-can distort/destroy some containers and products
Term
validate the process
Definition
-biological indicators
-filter integrity
Term
biological indicators
Definition
-for terminal sterilization methods
-specifics?
Term
aseptic process
Definition
-if terminal sterilization not feasible
-a process that maintains sterility and particle free
-sterilize raw/intermediate materials separately
-process the remaining steps under aseptic conditions (controlled environment, trained operators with aseptic techniques)
Term
terminal sterilization steps
Definition
-dissolve drug in buffer
-polishing filtration
-fill vials
-autoclave
Term
aseptic process steps
Definition
-dissolve drug in buffer
-sterile filtration
-fill vials aseptically (autoclaved vials)
Term
aseptic air quality specification
Definition
-ISO class 5 (req for all parenterals)
-100 particles/ft3 greater than .5 micrometers
Term
how to achieve ISO class 5 air quality?
Definition
-HEPA filters
-Laminar Air flow
Term
HEPA filters
Definition
-high efficiency particulate air
-efficiency of 99.97% for removing 0.3 micrometer or larger particles
Term
Laminar Air Flow
Definition
-entire body of air moves with uniform velocity along parallel flow lines
-average velocity 100ft/min
Term
small scale
Definition
LAFW with clean rooms
Term
large scale
Definition
-sterile suites
Term
tests unique to parenteral products
Definition
-sterility
-pyrogen
-particulates
-preservative efficacy (multi dose)
-container/closure integrity (ampules)
Term
sterility tests
Definition
-USP 71
-membrane filtration method (preferred)
-direct inoculation method
-growth media (fluid thioglycollate medium for bateria and soybean-casein digest medium for fungi)
-incubation 7 to 14 days
-minimum sample quantity and number of test articles
-antibiotic products
-validation
-do not replace sterilization procedure validation
Term
pyrogen test
Definition
-USP 151
-in rabbits
-inject product (10ml/kg)
-observe change in temperature
-not suitable for products which are pyretic or antipyretic
Term
bacterial endotoxins test
Definition
-USP 85
-limulus amebocyte lysate (LAL)
-gel or color formation in the presence of endotoxings
-simpler, faster, and more sensitive than rabbit test
-ONLY DETECTS ENDOTOXINS from gram negative bacteria
-endotoxin unit (EU)
Term
particular matter visual inspection
Definition
-manual or automated
-particles greater than 50 micrometers
-100% product inspection
Term
particulate matter in injections
Definition
-USP 788
-subvisible particles
-light obscuration method (ex. HIAC/Royco)
-microscopy method
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