3 Flashcards

1
Q

Polymeric Micelle

A

•they have narrow size distribution
•made of copolymers with surfactant characteristics
•very low cmc, prevent rapid dissociation ,don’t break down easily

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2
Q

Antibody therapy

A

•they’re both targeting group and a drug
•Used to target cancer cells
•the fragments are more effective and cheaper than the whole body
•monoclonal antibodies are generally used

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3
Q

Subunit vaccine

A

•it doesn’t contain the whole microorganism
•can benefit from a delivery system

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4
Q

If a liquid protien formulation prepared at 3.5 ph there is a risk of

A

Denaturation

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5
Q

Biopharmaceuticals

A

•derived from biological source.
•unstable after administration & on storage
•high molecular wt drugs
•eg, heparin, Nucleic acids, carps, vaccines, protien and peptide.

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6
Q

Which host could make the production of recombinant protiens cheaper

A

Plant

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7
Q

Why cyclosporin have resistance to pepsin

A

It’s cyclic& lipophilic

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8
Q

Which media contains lipolysis products

A

FeSSIF

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9
Q

Formulation of liposomes requirments

A

Correct temperature
Correct lipid/water ratio
Added energy to the system

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10
Q

How can polymer drug conjugation reduce aggregation of protein drugs

A

Hydrophilic polymer reducing hydrophobic protien protien interaction

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11
Q

Nanocryctals

A

•amphorous and,or crystalline shape
•surfactants are added in formulation during size reduction to improve stability
•in oral its formulated into tablets and capsules
•in case of tablets ,high nanocryctal drug loading should be avoided

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12
Q

Which are the most difficult drugs to incorporate inside liposomes

A

Intermediate log p drugs;
Log p between 1.7 and 5

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13
Q

How can Nucleic acid drugs/generally protien drugs loaded be incorporated into liposomes

A

Adsorped on the surface of cationic liposomes

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14
Q

Which apparatus is suitable for testing poorly soluble drugs

A

4

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15
Q

Which liposomes have the largest capacity to incorporate Hydrophilic drugs

A

LUV

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16
Q

Which drugs are the easiest to incorporate inside liposomes

A

Highly Hydrophilic
Highly lipophilic

17
Q

Low immunology: poor antibody binding
PEG drug conjugates: improving solubility

A

EPR effect: nanoparticles crossing the endothelial lining of vesicles in cancer tissue
Active targeting: ligand-receptor interaction

18
Q

In sink condition

A

Saturation solubility >10%> conc. of drug in medium

19
Q

Microneedles

A

•transdermal (not subcutaneous)
•no contact with nerve ending , painless
•500-750 Micro meter long
•they can be used for solid and liquid formulations

20
Q

Which microneedle consist of a matrix where the drug is dispersed

A

Dissolving microneedles

21
Q

Why cyclosporin has high permeability to intestinal epithelium

A

Short lipophilic and cyclic

22
Q

Which system can improve drug solubility

A

Dendrimers
Micelle
Liposomes
Drug nanocrystals