PRELIM 02 - Crude Drugs Flashcards
3 sources of crude drugs (PAM)
Plants, Animals, Minerals
Are natural substances which have undergone the process of collection and drying
Crude drugs
Found as sedimentary deposits and as weathering or hydrothermal alternation products of rocks
Clay
Used to stop bleeding and for a condition that involves swelling and sores in the mouth
Kaolin
Used as a treatment for diarrhea; derived from kaolin
Kao-pectate
A soft, siliceous sedimentary rock that is a component in toothpaste and is used as a filter to clarify syrups and sugar
Kieselguhr/Diatomaceous Earth/Diatomite
5 steps for preparation of crude drugs (CHDCG)
Collection, Harvesting, Drying, Curing, Garbling
Ensuring the true natural source of the drug (Steps in crude drug preparation)
Collection
The time wherein the drug in a part of a plant is highest in its content
Collection time
__________ are collected when photosynthesis is active (Collection process)
Flower tops/leaves
____________ are collected when fully matured (Collection process)
Seeds
__________ are collected prior or just about the time of pollination (Collection process)
Flowers
__________ and __________ are collected during dry weather (Collection process) (GO)
Gums, Oleoresin
__________ are collected near its ripening period (Collection process)
Fruits
__________ is collected from citrus fruits (Collection process)
Pectin
__________ is collected from unripe citrus fruits (Collection process)
Protopectin
____________ is collected from citrus fruits that are just ripe (Collection process)
Pectin
__________ is collected from citrus fruits that are overripe (Collection process)
Pectic acid
__________ is collected from the young leaves of marijuana (Collection process)
Cannabidiol
__________ is collected from the mature leaves of marijuana (Collection process)
Cannabicol (THC)
3 equipment used in harvesting (PMB)
Picker, Mower, Binder
Removes moisture to ensure good keeping qualities; it also stops the action of enzymes & other chemical reactions and fixes the active ingredient in a drug product (Steps in crude drug preparation)
Drying
3 types of drying (AAV)
Air drying, Artificial drying, Vacuum drying
Is a special drying process that enhances the properties of the plant’s active ingredient (Steps in crude drug preparation)
Curing
The final step; involves the removal of extraneous matter such as other parts of the plant, dirt, and adulterants (Steps in crude drug preparation)
Garbling
4 factors that affect packing, storage, and preservation (MLTI)
Moisture, Light, Temperature, Insects
4 storage materials that can be used in packing, storage, and preservation (PBSC)
Paper boxes, Barrels, Sacks, Cans
Uses the organs of senses (Evaluation of crude drugs)
Organoleptic
Evaluating the microscopic appearance of a drug (Evaluation of crude drugs)
Microscopic
Involves bioassay procedures, which are assays that uses living animals or excited organs to evaluate the effect of drugs (Evaluation of crude drugs)
Pharmacologic
Rooster is used in the bioassay of __________
Oxytocin
Pigeon is used for the bioassay of __________
Digitalis
Cats are used for the bioassay of __________
Atropine
Involves assay of active constituents using chemicals (Evaluation of crude drugs)
Chemical evaluation
The best method for determining official potency
Titration
Test for cottonseed oil (Chemical evaluation tests)
Halphen’s test
Test for Ergot (Chemical evaluation tests)
Van Urk’s reagent
Test for purine bases (Chemical evaluation tests)
Murexide test
Test for tropane alkaloid (Chemical evaluation tests)
Vitalis test
Positive result for Mayer’s reagent
Cream ppt
Positive result for Dragendorff’s reagent
Orange brown ppt
Using physical constraints to determine the purity of drugs (Evaluation of crude drugs)
Physical
Is measured on air-dried basis (Physical evaluation)
Moisture content
The index of drug composition standardizing liquid drugs (Physical evaluation)
Viscosity
The index of purity (Physical evaluation)
Melting point
Used to determine if drug is optically active; determined at 25°C using sodium lamp as the light source (Physical evaluation)
Optical rotation
Ratio of velocity of the light in vacuum/velocity in the substance (Physical evaluation)
Refractive index
The residue remaining after incineration (Physical evaluation)
Ash content
Approximate measure of the chemical constituents of a drug (Physical evaluation)
Extractives
Arranged alphabetically either in Latin name or in English name (Classification of crude drugs)
Alphabetically
Arranged to taxonomic orders (Classification of crude drugs)
Taxonomic
Based on the pharmacologic action of chief active constituent (Classification of crude drugs)
Pharmacologic
Based on the chemical nature of the most important constituents (Classification of crude drugs)
Chemical
Substandard drug regardless of cause (Adulteration of crude drugs)
Inferiority
Microbial attack (Adulteration of crude drugs)
Spoilage
Impairment in the quality of the drug (Adulteration of crude drugs)
Deterioration
Addition of one article to another; caused by ignorance, carelessness, or accident (Adulteration of crude drugs)
Admixture
May be intentional or deliberate (Adulteration of crude drugs)
Sophistication
An entirely different article is sold or used (Adulteration of crude drugs)
Substitution
Process used to obtain the desirable portion of a drug and eliminate the inert material
Extraction
Extraction uses a selective solvent known as the __________
Menstruum
Refers to the undissolved portion of the drug in the extraction process
Marc
Refers to the product of the extraction process
Percolate/Extractive
Appropriate solvent for fats
Hexane
Appropriate solvent for resins
Alcohol
Appropriate solvent for chlorophyll
Acetone
Appropriate solvent for chrysarobin
Hot benzene
Drugs which contain water soluble active constituents; examples include tannins, sugars, and glycosides (Types of extractives)
Water soluble extractives
Used to determine approximate resin content of drug; the official method for the assay of myrrh and asofoctida (Types of extractives)
Alcohol soluble extractives
May be volatile or non-volatile (Types of extractives)
Ether soluble extractives
Are soluble extractives; represent the volatile oil of the drug (Types of ether soluble extractives)
Volatile ether
Represents resins, fixed oil, and coloring matter (Types of ether soluble extractives)
Non-volatile ether
Uses hot water; has less contact time (Methods of extraction)
Infusion
Soaked in solvent for long period of time regardless of the temperature (Methods of extraction)
Maceration
Continuous extracting process (Methods of extraction)
Percolation
<30°-40°C; uses slow heat (Methods of extraction)
Digestion
Uses boiling water (Methods of extraction)
Decoction
Involves partitioning (Methods of extraction)
Liquid-liquid extraction
Used for volatile substances (Methods of extraction)
Distillation
__________ metabolites are active constituents
Secondary
The process of producing secondary metabolites is known as __________ and __________ (DB)
Drug biogenesis, Biosynthesis
__________ contains cannabidiol and cannabinol
Cannabis sativa
Japanese peppermint has __________% more menthol
40%
__________ contains vinca alkaloids
Catharantus roseus (Chichirica)
__________ are secondary metabolites produced in plants for protection versus infection
Phytoalexins
From Slenda (Examples of phytoalexins)
Resveratrol
From Solanum tuberosum (Examples of phytoalexins)
Scopoletin
A defensive sesquiterpene produced by wild tobacco and capsicum species (Examples of phytoalexins)
Capsidiol
Capsidiol is produced in response to the fungal pathogen __________
Alternaria alternate
Are those that strengthen immune response of plants
Adaptogens