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Pharmaceutics
Tablets
39
Biology
Graduate
02/01/2012

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Term
tablet
Definition
-a solid dosage form prepared by compression or molding
Term
tablet categories
Definition
-oral ingestion
-oral cavity
-vaginal tablets
-dispensing tablets (compounding tablets, high amount of drug)
-hypodermic tablets
Term
tablet categories
Definition
-scored tablets
-caplets
-film coated
-sugar coated
-geltab
-gelcap
Term
imprinting
Definition
-required by FDA (1995)
-for all solid dosage forms for human use
-product specific ID codes
-can be embossed, debossed(engraved), or printed
Term
compressed tablets
Definition
-prepared by tablet press with the use of dies and punches
Term
hydraulic press
Definition
-manual operation
-place pre-filled punch/tooling set between plates
-apply pressure
Term
single punch press
Definition
-up to 100 tablets/min
Term
rotary press
Definition
-multi-station
-up to 10k tablets/min
Term
material requirements
Definition
-uniform mix
-flowability
-compactability
-no adhesion to metal tooling
Term
compactability
Definition
-compressability
-bonding
-minimal elastic recovery
Term
common problems
Definition
-weight variation
-content uniformity
-tablet hardness
-mottling
-capping
-sticking and picking
Term
mottling
Definition
uneven distribution of color
Term
ideal tablet size
Definition
100mg to 1g
Term
ideal drug loading
Definition
10% to 50%
Term
ideal strength
Definition
10mg to 500mg
Term
granulation
Definition
a particle size enlargement process after which the initial primary particles can still be identified
Term
wet granulation overview
Definition
-weight and blending
-preparing a damp mass
-screening damp mass into granules
-drying the granulation
-sizing the granulation by dry screening
-adding lubricant and blending
-tableting
Term
weighing and blending
Definition
-active ingredient
-diluent
-binder
-disintegrant
Term
preparing a damp mass
Definition
-use agitated mixer/fluid bed processor
-add water while mixing
-avoid over granulation
Term
drying the granulation
Definition
-oven
-one-pot
-fluid bed systems
Term
sizing the granulation
Definition
-dry screening (12-20 mesh screens)
-target granule size depends on tablet size
Term
adding lubricant
Definition
-mix the lubricant with granulation
-improves flow
-prevents adhesion
Term
one pot
Definition
-entire granulation process completed in one apparatus
-containment of potent drugs
Term
fluid bed system
Definition
-pre blends the formulation though air flow
-sprays liquid binder on powder while circulating
-dries granulated product
Term
dry granulation
Definition
-powder mixture is compacted into large pieces and sized into granules
-ex. slugging,roller compaction
Term
sugar coating
Definition
-smooth finish
-need sealing coats for moisture sensitive drugs
-printing necessary
-multistep process
Term
film coating
Definition
-thin,polymer coating
-durable
-colored or clear
-coating reveals embossment
-in a coating pan or fluid bed
Term
tablet coating
Definition
-gelatin coating
-2 sheets of gelatin by cold shrink process
-made to look like a capsule
Term
multi-compressed tablets
Definition
-multi-layer tablets
-compression coated tablets (tablet within a tablet)
-for aesthetics,compatibility, staged release
Term
molded tablets
Definition
-aka tablet triturates
-30-250mg each
-lactose or sucrose base
-prepared in a mold
Term
effervescent tablets
Definition
-contains sodium bicarbonate and acids
-usually large compressed tablets
-dissolve in water before administration
Term
chewable tablets
Definition
-disintegrates in mouth with or without chewing
-no water needed
-prepared by wet granulation and compression
Term
orally disintegrating tablets
Definition
-dissolve in less than 1 min
-prepared by molding and drying or soft compression
-no water needed
Term
vaginal tablets
Definition
-uncoated bullet shaped
-prepared by direct compression
-dispensed with applicator
Term
most marketed tablets manufactured by
Definition
compression
Term
weight is determined by
Definition
density and powder fill volume
Term
easier to manufacture
Definition
tablet
Term
higher density
Definition
tablet
Term
property that does not impact bioavailability
Definition
thickness
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