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Questions and Answers
What does pharmaceutics study?
The physical, chemical and biological factors which influence the formulation, manufacture, stability and effectiveness of pharmaceutical dosage forms.
Define the term 'dosage form'.
The final form in which the drug is presented to the patients that is unique in its physical and pharmaceutical characteristics.
What is the purpose of a dosage regimen?
The schedule of the dosage that is frequently given or the manner in which the drug is taken.
Which of the following is NOT a reason for the need of dosage forms?
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Match the following dosage forms with their characteristics:
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Aqueous solutions are liquid preparations that contain one or more soluble chemical substances dissolved in water.
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The _____ is the amount of a drug expected to produce the medicinal effect.
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What is a characteristic of aromatic waters?
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What is the term for the science of dosage form design?
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What does ADME stand for?
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Which of the following is NOT a reason for the need of dosage forms?
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___ are liquid preparations of substances that are either insoluble or unstable in the desired vehicle.
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Coated tablets protect a drug substance from gastric acid after oral administration.
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What are the three classifications of dosage forms?
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Which of the following is an example of a semisolid dosage form?
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Aqueous solutions contain one or more soluble chemical substances dissolved in ___.
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What is a dosage regimen?
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Study Notes
Objectives of Pharmacy Course
- Understand dosage forms and routes of administration.
- Explain prescription parts and labelling for compounding.
- Recall Latin numerals and abbreviations in prescriptions.
- Recognize conversions between metric and imperial systems.
- Understand basic pharmaceutical calculations, including % concentration and molarity.
- Describe extemporaneous preparation procedures.
- Define ADME and analyze potential pharmaceutical incompatibilities.
Introduction to Dosage Forms
- Pharmaceutics: The study of dosage form design influenced by physical, chemical, and biological factors.
- Dosage form: The presentation format of the drug to patients, characterized by unique physical and pharmaceutical features.
Key Terminology
- Dose of a drug: Expected amount to produce medicinal effects in adults.
- Dosage regimen: Schedule or manner of drug administration (e.g., three times daily).
Importance of Dosage Forms
- Ensures safe and convenient delivery of accurate dosages.
- Protects drugs from atmospheric oxygen and moisture (e.g., coated tablets).
- Shields drugs from gastric acid after oral intake.
- Conceals unpleasant tastes and odors of drugs (e.g., syrup, capsules).
Characteristics of Dosage Forms
- Depends on drug solubility:
- Solutions for soluble substances.
- Suspensions for insoluble compounds.
- Enables controlled drug release mechanisms for extended action (e.g., controlled-release tablets).
- Facilitates optimal drug action via topical, rectal, or inhalation routes.
Classification of Dosage Forms
-
Liquid Dosage Forms:
- Solutions: Homogeneous mixtures of solute in solvent.
- Colloids (Dispersion)
- Suspensions
- Emulsions
-
Semisolid Dosage Forms:
- Ointments, creams, pastes
-
Solid Dosage Forms:
- Powders, granules, tablets, capsules
Liquid Dosage Forms
-
Solution:
- A homogenous mixture of solid, liquid, or gas in another liquid (e.g., water).
- Utilizes specific therapeutic effects of soluble substances.
-
Examples of Solutions:
- Antibacterial topical solutions (e.g., benzalkonium chloride) used for skin treatment.
- Aromatic waters: Clear solutions of volatile oils used as flavoring or in emulsion/suspension bases.
- Mixtures: Often aqueous, can be solutions or suspensions.
Objectives of Pharmacy Course
- Understand dosage forms and routes of administration.
- Explain prescription parts and labelling for compounding.
- Recall Latin numerals and abbreviations in prescriptions.
- Recognize conversions between metric and imperial systems.
- Understand basic pharmaceutical calculations, including % concentration and molarity.
- Describe extemporaneous preparation procedures.
- Define ADME and analyze potential pharmaceutical incompatibilities.
Introduction to Dosage Forms
- Pharmaceutics: The study of dosage form design influenced by physical, chemical, and biological factors.
- Dosage form: The presentation format of the drug to patients, characterized by unique physical and pharmaceutical features.
Key Terminology
- Dose of a drug: Expected amount to produce medicinal effects in adults.
- Dosage regimen: Schedule or manner of drug administration (e.g., three times daily).
Importance of Dosage Forms
- Ensures safe and convenient delivery of accurate dosages.
- Protects drugs from atmospheric oxygen and moisture (e.g., coated tablets).
- Shields drugs from gastric acid after oral intake.
- Conceals unpleasant tastes and odors of drugs (e.g., syrup, capsules).
Characteristics of Dosage Forms
- Depends on drug solubility:
- Solutions for soluble substances.
- Suspensions for insoluble compounds.
- Enables controlled drug release mechanisms for extended action (e.g., controlled-release tablets).
- Facilitates optimal drug action via topical, rectal, or inhalation routes.
Classification of Dosage Forms
-
Liquid Dosage Forms:
- Solutions: Homogeneous mixtures of solute in solvent.
- Colloids (Dispersion)
- Suspensions
- Emulsions
-
Semisolid Dosage Forms:
- Ointments, creams, pastes
-
Solid Dosage Forms:
- Powders, granules, tablets, capsules
Liquid Dosage Forms
-
Solution:
- A homogenous mixture of solid, liquid, or gas in another liquid (e.g., water).
- Utilizes specific therapeutic effects of soluble substances.
-
Examples of Solutions:
- Antibacterial topical solutions (e.g., benzalkonium chloride) used for skin treatment.
- Aromatic waters: Clear solutions of volatile oils used as flavoring or in emulsion/suspension bases.
- Mixtures: Often aqueous, can be solutions or suspensions.
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Description
This quiz assesses your understanding of various dosage forms and routes of administration in pharmacy. You'll also explain prescription components and recognize the Latin numerals and abbreviations used in prescriptions. Test your knowledge on pharmaceutical calculations and metric-imperial conversions.
