Pharma MT1 Flashcards
Which of the following can occur at therapeutic dosage levels in healthy patients? Allergic reactions Teratogenic effects Idiosyncratic reactions All of the above can occur
All of the above can occur
MRL is an acronym for: Minimum relevant level Maximum residue limit Medicine residue level Medicine registry list
Maximum residue limit
Usually for mixing these types of real drugs into the medicated feedstuff, commercial feed compounders need to have a prescription for Medicated Feedstuff (Veterinary Written Direction). POM-V Pharmacy Medicines (P) Prescription only medicines (POM) AVM-GSL
POM-V
Quantal dose response curves are:
Obtainable from the study of intact subjects but not from isolated tissues
Used for determining the maximal efficacy of a drug
Used in determining the therapeutic index of a drug
Invalid in the presence of inhibitors of the drug studied
Used in determining the therapeutic index of a drug
The adhesive of the granules can be:
Distilled water
Which drugs have to be kept in a locked receptacle with the key in possession of a veterinarian?
Schedule 2 and 3 drugs
What is the first pass effect?
Liver decomposes the orally applied drug
In which book can the indications, effects, and side effects of a given drug be found?
British Veterinary Formulary
The capacity of a drug to cause a particular action?
Specificity
A drug that mediates the reversal of histamine bronchoconstricition (mediated at the histamine receptors) by acting at adrenoceptors (e.g epinephrine)
Physiologic antagonist
Sublingual administration is useful for
Drugs with high first pass metabolism
Which is the most informative name of a drug about the major ingredient?
Approved name
Which effect facilitates the oral bioavailability of medicinal products?
Rapid dissolution from the formulation
According to the Misuse of Drug Regulations (UK) this drug is schedule 3:
Pentobarbitone
The maximal activity specific to a drug
Intrinsic activity
Records should be made within 48 hours of the transaction and kept for a period of at least 5 years
Records on food producing animal treatments
Which technology is appropriate for achieving a pulsatile release of an active substance in a bolus?
Chip controlled diaphragms
Solid, single dose or multidose preparation for oral administration containing dry aggregates of powder particles
Granules
What is the proportion of ionized vs non-ionized molecules of a weak basic drig (pKa=7.4) in the stomach (pH=3.4)?
10,000:1
What “veterinary medicines regulation 2013” category can be supplied by pharmacists without prescription?
NFA-VPS
AVM-GSL
This is the name given to a drug by the manufacturers that produce the drug:
Proprietary name
Most appropriate method for the extraction of water soluble, heat sensitive substances from medicinal herbs
Extraction with ether
Which process can move drugs against a concentration gradient?
Active transport
Two drugs have been examined in animal studies, both have a therapeutic index of 2. It can be assumed that:
The dose response curves will be parallel
None of these
When given in ED50 doses, the 2 drugs are equally safe
When given at ED50 doses, no animals will be killed by the drugs
None of these
Which ingredient is missing from the hard capsule?
Glycerine
Frequently used vehicle in oral powders
Lactose
According to the Regulation fix MRL is established for some of these drugs..
Drugs in table 1
Which statement in NOT true for a first order, one compartment open pharmacokinetic model?
In the course of this process the capacity of organs of metabolism and/or excretion is saturated
At steady state the plasma concentration of a drug (Cpss) is 0.2mg/L. The total maintenance dose if the drug is applied every 8 hours?
4.8 mg
In this kind of prescription the proprietary name of the veterinary licensed medicine is given:
Prescription of a veterinary licensed medicine
Which one is correct? When the pKa of a drug equals the pH of the surroundings
50% ionization occurs
Rectal administration
Minimizes first pass metabolism
A drug that interacts directly with the agonist and not at all or only incidentally with the receptor
Chemical antagonist
According to the theory that agonists and antagonists occupy the same receptor site, an effective antagonist should exhibit:
No intrinsic activity and high affinity
A drug that interacts directly with the against and not at all, or incidentally with the receptor
Chemical antagonist
……… the largest effect a drug can produce, regardless of dose
Maximum efficacy
What is the approximate percentage of a weak base (pKa=8.4) in the non-ionised form in the plasma having a pH of 7.4?
10%
When supplying this drug. one copy of which of the following has to be kept by the registered feed compounder?
Prescription for medicated feedstuff (PMF)
Which of the following can occur at therapeutic dosage levels in healthy patients? Allergic reactions Teratogenic effects (Thalidomide) Idiosyncratic reactions All of the above can occur
All of the above can occur
A drug licensed for humans and included in table 1, and MRL has to be established administered to dairy cattle should have a withdrawal period for milk:
At least 7 days withdrawal period
According to this type of medicinal substance use both sick and healthy animals are treated with a mass (population) administration:
Metaphylaxis
What is the proportion of ionised and non-ionised molecules of a weak acidic drug (pKa=4.4) in blood (pH=7.4)
1000:1
How long do the withdrawal period usually last at minimum for meat, following application of human licensed medicine?
28 days
How long do the withdrawal period usually last for fish at minimum, following application of a human licensed medicine?
500 degree days
The phenomenon in which 2 drugs produce opposite effects on a physiologic system but do not act the same at the receptor site is:
Physiologic antagonism
Two drugs A and B, have the same mechanism of action. Drug A in a dose of 5mg produces the same magnitude of effect as drug B in a dose of 500mg:
Drug A is 100 times more potent than drug B
Which substance is schedule 2 substance?
Fentanyl
Qualitative and quantitative determination of the medicinal substances is not introduced in:
British Veterinary Formulary
The LD50 of a drug is
The dose (mg/kg) that kills 50% of the treated animals
Among the environmental factors that may harm the medicines, this stimulates the oxidation or reduction processes
Light (UV)
This category may play an imprtant role in the prevention of animal disease, but they are not real drugs
Biocides
How long do the withdrawal period usually last for eggs, following application of an official or prepared medicine?
7 days
Which temperature interval is valid if the drug has to be stored at a cool place?
8-15 degrees celsius
What is written in the inscription in the case of prepared preparations?
The name and amount of the ingredients
What “Medicines order 2001 UK” category can be supplied by pharmacists without any prescription?
GSL, P, PML
This name of medicinal substances is given by the pharmacopoeia commission to each compound:
Approved name
Which part of the prescription gives the farmer information on the withdrawal time?
Signature
Which effect facilitates the oral bioavailability of medicinal products?
Rapid dissolution from the formulation
Which is an example for substitution therapy?
Administration of thyroxin for the treatment of hypothyroidism
What is characteristic for a drug molecule, which has been metabolised in the phase II of biotransformation procedure?
Losing of activity
Drug allergies
Can develop when the patient may or may not have been exposed to the drug previously
When comparing drugs with respect to the intensity of response, the drug that produces the greatest maximum effect is the one with the highest
Efficacy
The pharmacist can supply these drugs only if presented with a valid prescription from the practitioner:
POM Prescription only medicine
The effect and side effecst of drugs, as well as the contraindications of their uses are NOT introduced well detailed in:
European Pharmacopoeia
The category drug like substances (non real drugs) includes:
Biocides
Which part of the prescription tells the pharmacist the name and formulation of the drug
Inscription
The oral AUC is the half that of the IV AUC value and for oral administration two fold higher dose was used. What is the bioavailability (F) value of the drug?
0.25
Which of the follwing is an action of a non-competitive antagonist?
Decreases the maximum response to an agonist
Drugs may harmfully interact with useful intestinal microbes. In which species is the effect the least significant?
Dogs
If drug A has a greater efficacy than drug B, then Drug A…
Is capable of producing a greater maximum effect than drug B
A drug that blocks the action of epinephrine at its receptors by occupying those receptors without activating them
Pharmacological antagonist
In this type of prescription the prorietary name of a vet-licensed medicine is given
Prescription of a veterinary licensed medicine
Which one is incorrect? Factors maintaining drug allergy are:
Preparation with rapid absorption after IM or SC administration
The major part of the text must be in the veterinarian’s own handwriting
Special preparation
This name of medicinal substances is given by the manufacturers
Proprietary name
The oral AUC is the 25% of that of the IV AUC value and for the IV administration two fold higher dose was used. What is the bioavailability (F) value of the drug?
0.5
Which part of the prescription gives the owner the information about the dosages of an animal?
Signature
Mark the reaction, which is NOT characteristic for type I, immediate or anaphylaptic drug allergy reaction:
Immune complex formation
A drug licensed for humans and included in annex I and III administered to dairy cattle should have a WP for milk
At least 7 days withdrawal period
Vehicle in licking stones
Sodium chloride
How long do the withdrawal period usually last for fish at minimum, following application of an official or prepared medicine?
500 degree days
For which category is not true, usually it develops after repeated administration?
Idiosyncrasy
Which substance is a schedule 3 substance?
Phenolbarbitol/phenobarbitone
A dosage from appropriate for the preparation of medicated feedstuff?
Premix
Specific receptor antagonists can best be described as having
affinity but little or no efficacy for the receptor
Antagonists are drugs that
Block tissue receptor sites
Defined as treatment of clinically diseased animals and prevention of spreading diseases in herd
Metaphyllaxis
Drugs can be used as non-divided powders:
Only drugs with broad therapeutic margin
These drugs are always POM medicines
Controlled drugs
Examine the graph: what is the efficacy relationship between drug A and C?
A is more efficious
Which effect facilitates the oral bioavailability of medicinal products?
Rapid dissolution from the formulation
Which ingredient is missing from the hard capsule?
Glycerine
These drugs are natural compounds of practically harmless substances, which do not require a withdrawal period
Drugs in Annex II
At steady state the plasma concentration of a drug (Cpss) is 1mg/L. The total body clearance is (CL) 100ml/min. What is the maintenance dose if the drug is applied in every 12 hour?
72mg