Excipients: tablets Flashcards
group 1 vs group 2 excpients for tablet preparation
- Group 1
- helps w/ processing and compression characteristics
- diluants, binders, glidants and lubricants
- Group 2
- help give disirable physical character to finished tab
- disintegrants, surfactants, flours, flavours, swetening agents, polymers
- help give disirable physical character to finished tab
what is the purpose of diluent
increase bulk of tablet
lactose
filler/diluent
-anhydrous: spray dried for direct compression
Monohydrate: for wet granulation
microcrystalline cellulose
dilutent, disintegrant, binder
used in direct compression if particles are 100 um, and in granulations if particules are 50 um
Dicalcium phosphate dihydrate
diluent
Excellent flow properties, brittle material
Calcium carbonate Sodium carbonate
diluent
brittle
Starch
diluent, binder or disintegrant
Dextrose, Sucrose, Mannitol, Sorbitol
filler and sweetener used in effervescent and chewable tablets
what is the most common binder
starch mucilage
*Solution binders: added as the granulation fluid, more effective and most common
what are common solution binders
starch mucilage
polyvinylpyrrolidone
gelatin
cellulose derivates (methylcellulose, hydroxypropyl methylcellulose)
what are dry binders for for tablet making
*added before wet granulation
Microcrystalline cellulose (used as binder and diluent)
polyvinylpyrrolidone (PVP)
pregelatinized starch
starch mucilage
solution binder
sucore solution
solution binder
*prob also sweetener
Polyvinylpyrrolidone
solution and dry binder
gelatin
solution binder
used to make shell (hard and sfot gel)
Microcrystalline cellulose
dry binder
diluent
disintegrant
sorbent
starch glyolate
disintegrant
swells on contact with water (super disintegrant)
Croscarmellose sodium
disintegrant
swells on contact w/ water (super disintegrant)
Crospovidone
super disintegrants
swells on contact w/ water
Organic acid (citric acid + tartaric ) + sodium bicarbonate
used in effervesent tabs (disintegrant)
1 : 2 : 3.4
iron oxide
colouring agent
indigo carmine
colouring agent
sodium lauryl sulfate
wetting/solbilubilizing agent
also processing agent for capsules: makes gelatin uniformly cover mold
soluble lubricant
magnesium stearate
insoluble lubricant
also antiadherant for capsule manufacture
calcium stearate
insoluble lubricant
stearic acid
insoluble lubricant
light mineral oil
insoluble lubricant
sodium benzoate
soluble lubricant
PEG 4000 and 6000
soluble lubricant
colloidal silicon doixide
glidant
*helps flow by dec interparticle friction
silicon doxide
viscoity enhancer
*used in rectal doseage forms
talc
glidant
*helps flow by dec interparticle friction
also antiadherant for capsule manufacture
calcium silicate
glidant
*helps flow by dec interparticle friction
magnesium carboante
glidant *helps flow by dec interparticle friction
sorbant * Sorbs oil or oil-drug solutions into powder mixture
docusate sodium
wetting/solubliizing agent
*Facilitates solubilization of water-insoluble drugs, wetting of hydrophobic tablets
lecithin
wetting/solubliizing agent
*Facilitates solubilization of water-insoluble drugs, wetting of hydrophobic tablets
poloxamer
wetting/solubliizing agent
*Facilitates solubilization of water-insoluble drugs, wetting of hydrophobic tablets
polysorbate 80
wetting/solubliizing agent
*Facilitates solubilization of water-insoluble drugs, wetting of hydrophobic tablets
fumed silica
sorbent
sorbs oil or oil-drug solutions into powder mix
kaolin
sorbent
sorbs oil or oil-drug solutions into powder mix
hypromellose
shell for capsules
*plant based option
Hydroxypropyl methylcellulose (HPMC)
shell for capsules
*plant based
pullulan
polysaccharide for capsule shell
paraben
persevative
propylene glycol
plasticizer
cetyl alcohol
plasticizer
surfactants
solubilizing agents
butylated hydroxytoluene
antioxidants
uned in rectal/vag dosage forms
what can be used in sealling step in sugar coating
Shellac
Cellulose acetate phthalate (CAP)
Polyvinyl acetate phthalate (PVAP)
Cellulose acetate phthalate (CAP)
used in sealing step in sugar coating
used in coating for delayed release polymer
Polyvinyl acetate phthalate (PVAP)
used in sealing step in sugar coating
used in for delayed release polymer
shellac
used for sealing of sugar coating but also delayed relase polymer
titanium dixoide
used for colouring
also can be sued at 1% as an opacifier
what is used for immeidate release coating
- cellulose derivates
- hypromellose
- hydroxypropyl cellulose
- vinyl derivates
- polyvinyl alc
- acyrlic acid derivates
- methylmethacrylate copolymer
- methacrylic acid
Hypromellose
used for IR coating
hydroxypropyl cellulose
used for IR coating
polyvinyl alcohol
used in IR coating
*vinyl derivates
Methylmethacrylate copolymer
acrylic acid derivative for IR coating
Methacrylic acid
acylic acid derivate for IR coating
HPMCAS
HPMCP
used in delayed replease coating
**poly(methylacrylic acid): ethyl acrylate (1:1)
used in dealyed released coating
idk she had this ** in the ntoes
rosin
used in DR coating
ehtylcellulose
extended release coating
Forms water permeable membrane for dissolution of drug
ammonio methacrylate copolymer type A and B
extended realse coating
polyvinyl acetate
*when it is polyvinyl acetate phthalate its used for other coatings
ER
glycerin
plasticizer
used in soft shell caps
polyethylene glycol
plasticizer
propylyene glycol
plasticizer
diethyl phthalate
plasticizer
dibutyl sebacate
plastiizier
triethyl citrate
placticizer
tributyl citrate
triacetin
plasticizer
Glyceryl monostearate
anti adherant
high ME PEGS
anti adherants
Sorbitan monooleate
surfactiant
Sodium dodecyl sulfate
surfactant
simethicone
anti-foaming