Podcast
Questions and Answers
What is the primary mechanism by which drugs can enter the brain through the olfactory system?
What is the primary mechanism by which drugs can enter the brain through the olfactory system?
- Paracellular diffusion or axonal transport (correct)
- Endocytosis through the olfactory bulb
- Facilitated diffusion via Bowman’s gland
- Exocytosis from olfactory nerve cells
Why is the olfactory epithelium significant in drug delivery to the central nervous system?
Why is the olfactory epithelium significant in drug delivery to the central nervous system?
- It is an area without the blood-brain barrier. (correct)
- It has a larger surface area than the olfactory bulb.
- It is the only region where drugs can cross via receptor-mediated endocytosis.
- It is a major site for metabolic activity.
What is a major challenge when optimizing delivery systems for intranasal drug delivery?
What is a major challenge when optimizing delivery systems for intranasal drug delivery?
- Ensuring the drugs are stable at room temperature.
- Increasing the viscosity of the drug formulation.
- Decreasing the absorption through the nasal mucosa.
- Avoiding clearance from the olfactory region. (correct)
Which of the following statements about ocular drug delivery is true?
Which of the following statements about ocular drug delivery is true?
What disease condition is mentioned as associated with ocular drug delivery?
What disease condition is mentioned as associated with ocular drug delivery?
What characterizes a generic drug in comparison to its branded counterpart?
What characterizes a generic drug in comparison to its branded counterpart?
Why do generic drug companies often see lower profits compared to branded companies?
Why do generic drug companies often see lower profits compared to branded companies?
What was a significant change in the pharmaceutical landscape during the 90s and 00s?
What was a significant change in the pharmaceutical landscape during the 90s and 00s?
What role do health ministers typically have in relation to generic drugs?
What role do health ministers typically have in relation to generic drugs?
What is the primary factor that triggers the generic business for a drug?
What is the primary factor that triggers the generic business for a drug?
What is an additional benefit of generic drugs for consumers?
What is an additional benefit of generic drugs for consumers?
What is a hallmark of the lifecycle management strategy utilized by pharmaceutical companies?
What is a hallmark of the lifecycle management strategy utilized by pharmaceutical companies?
Which type of drug is described as having identical dose and route of administration as the leading brand?
Which type of drug is described as having identical dose and route of administration as the leading brand?
Which term is accurately defined as what the body does to the drug?
Which term is accurately defined as what the body does to the drug?
What does bioavailability primarily measure?
What does bioavailability primarily measure?
Which process is considered a major determinant of pharmacokinetics?
Which process is considered a major determinant of pharmacokinetics?
What is the significance of the term 'Tmax' in pharmacokinetics?
What is the significance of the term 'Tmax' in pharmacokinetics?
What does the area under the curve (AUC) represent in pharmacokinetics?
What does the area under the curve (AUC) represent in pharmacokinetics?
In the context of intravenous (IV) administration, what aspect of drug absorption is not relevant?
In the context of intravenous (IV) administration, what aspect of drug absorption is not relevant?
What does the term 'duration of action' refer to in pharmacokinetics?
What does the term 'duration of action' refer to in pharmacokinetics?
How is the minimum effective concentration (MEC) defined?
How is the minimum effective concentration (MEC) defined?
What is the primary reason dosage forms are used instead of pure substances?
What is the primary reason dosage forms are used instead of pure substances?
Which of the following is NOT a requirement of dosage forms?
Which of the following is NOT a requirement of dosage forms?
What defines an excipient in a pharmaceutical formulation?
What defines an excipient in a pharmaceutical formulation?
Which function does NOT pertain to the use of excipients?
Which function does NOT pertain to the use of excipients?
Why is sustained release medication an important feature of dosage forms?
Why is sustained release medication an important feature of dosage forms?
What role do excipients play in terms of safety and effectiveness of the drug product?
What role do excipients play in terms of safety and effectiveness of the drug product?
Which of these statements about Nurofen's market strategy is accurate?
Which of these statements about Nurofen's market strategy is accurate?
What is a potential concern regarding the use of excipients like gelatin?
What is a potential concern regarding the use of excipients like gelatin?
What is a primary reason for film coating ibuprofen tablets?
What is a primary reason for film coating ibuprofen tablets?
Which of the following is NOT a requirement for an ideal oral solid dosage form?
Which of the following is NOT a requirement for an ideal oral solid dosage form?
Which of the following dosage forms allows for rapid absorption through the mucous membranes of the mouth?
Which of the following dosage forms allows for rapid absorption through the mucous membranes of the mouth?
What challenge is faced in the formulation of drugs with poor flow properties?
What challenge is faced in the formulation of drugs with poor flow properties?
What is the primary purpose of disintegrants in tablet formulation?
What is the primary purpose of disintegrants in tablet formulation?
Why is it challenging to formulate high-dose, low-potency drugs?
Why is it challenging to formulate high-dose, low-potency drugs?
What type of ingredient is used to provide bulk and compressibility in tablet formulation?
What type of ingredient is used to provide bulk and compressibility in tablet formulation?
Which medication has a significantly lower dosage compared to typical drugs, requiring careful measurement?
Which medication has a significantly lower dosage compared to typical drugs, requiring careful measurement?
What is the significance of the pH level ranging from 4.0 to 5.5 in relation to skin permeability?
What is the significance of the pH level ranging from 4.0 to 5.5 in relation to skin permeability?
Which population group is likely to have reduced skin permeability due to age-related factors?
Which population group is likely to have reduced skin permeability due to age-related factors?
What mechanism is primarily used by microneedles to enhance drug delivery through the skin?
What mechanism is primarily used by microneedles to enhance drug delivery through the skin?
How does transdermal delivery facilitate systemic effects for potent drugs?
How does transdermal delivery facilitate systemic effects for potent drugs?
What is a potential outcome when using drug delivery patches?
What is a potential outcome when using drug delivery patches?
Which pathway is described as a 'cutaneous first-pass' mechanism?
Which pathway is described as a 'cutaneous first-pass' mechanism?
What is a primary feature of the LidoSiteâ„¢ delivery system?
What is a primary feature of the LidoSiteâ„¢ delivery system?
What aspect of skin physiology significantly impacts drug absorption?
What aspect of skin physiology significantly impacts drug absorption?
Flashcards
Pharmacokinetics (PK)
Pharmacokinetics (PK)
The study of how the body affects a drug, including absorption, distribution, metabolism, and excretion.
Pharmacodynamics (PD)
Pharmacodynamics (PD)
The study of how a drug affects the body, including its mechanism of action and therapeutic effects.
Liberation
Liberation
The process of drug release from its dosage form, like a tablet or capsule.
Absorption
Absorption
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Distribution
Distribution
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Metabolism
Metabolism
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Excretion
Excretion
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Plasma Concentration vs Time
Plasma Concentration vs Time
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What is a dosage form?
What is a dosage form?
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What is an excipient?
What is an excipient?
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Why is dose control important?
Why is dose control important?
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How do dosage forms protect drugs?
How do dosage forms protect drugs?
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How do dosage forms affect drug absorption?
How do dosage forms affect drug absorption?
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Why are there different dosage forms?
Why are there different dosage forms?
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How do dosage forms address taste and odor issues?
How do dosage forms address taste and odor issues?
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How do dosage forms achieve controlled or sustained release?
How do dosage forms achieve controlled or sustained release?
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What is a Generic Drug?
What is a Generic Drug?
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What is the 'Generic Business'?
What is the 'Generic Business'?
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What is 'Lifecycle Management'?
What is 'Lifecycle Management'?
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What does it mean for a generic drug to be 'bioequivalent'?
What does it mean for a generic drug to be 'bioequivalent'?
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What was the '90's - 00's: The Era of Generics'?
What was the '90's - 00's: The Era of Generics'?
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What is 'Patent Extension'?
What is 'Patent Extension'?
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How did the acceptance of generics play a role in their rise?
How did the acceptance of generics play a role in their rise?
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How did government policy support the growth of generic drugs?
How did government policy support the growth of generic drugs?
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Low Dose Formulation Challenges
Low Dose Formulation Challenges
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High Dose Formulation Challenges
High Dose Formulation Challenges
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Why are ibuprofen tablets film-coated?
Why are ibuprofen tablets film-coated?
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What are tablets?
What are tablets?
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Tablet Excipients
Tablet Excipients
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Dissolution of Tablets
Dissolution of Tablets
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Buccal and Sublingual Tablets
Buccal and Sublingual Tablets
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Ideal Oral Solid Dosage Form
Ideal Oral Solid Dosage Form
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Olfactory epithelium
Olfactory epithelium
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Nose-to-Brain Drug Delivery
Nose-to-Brain Drug Delivery
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Axonal transport
Axonal transport
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Blood-Brain Barrier
Blood-Brain Barrier
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Ocular Drug Delivery
Ocular Drug Delivery
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What factors influence skin permeability?
What factors influence skin permeability?
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What is cutaneous first-pass metabolism?
What is cutaneous first-pass metabolism?
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What is Iontophoresis?
What is Iontophoresis?
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How do microneedles increase skin permeability?
How do microneedles increase skin permeability?
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What is pharmacokinetics?
What is pharmacokinetics?
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What is pharmacodynamics?
What is pharmacodynamics?
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How does transdermal drug delivery benefit from bypassing first-pass metabolism?
How does transdermal drug delivery benefit from bypassing first-pass metabolism?
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What is the advantage of sustained drug concentrations with transdermal delivery?
What is the advantage of sustained drug concentrations with transdermal delivery?
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Study Notes
Fundamentals of Pharmacy/Pharmacology: The Science of Medicines
- Â This unit covers the fundamentals of pharmacy and pharmacology, focusing on the science of medicines.
- Â Lecture 1 introduces the unit's topics.
- Â Â An outline is provided detailing topics like the reasoning behind the study of the science of medicine, pharmaceutics, the medicine approval process, the journey of a medicine, teaching and learning methods, assessment procedures, support and help resources.
- Â Year One units are broken down in Pharmacy and Pharmacology, detailing specific subjects with credit values.
- Â Why study the science of medicines? This is a core topic exploring the chemistry of drugs, drug discovery and the connection to health and disease
- The science of medicines: This encompasses topics such as drug discovery and the chemistry of drugs associated with health and disease in the context of delivery to the patient.
- "From bench to bedside" illustrates the journey a new treatment takes to become an NHS prescription, taking 10+ years from drug discovery to getting the drug available for patients. This process involves stages like lab testing, clinical trials, marketing authorisation, initial price setting, and appraisal by NICE and then to funding decision and availability.
- Pharmaceutics: Key study point involving drug formulation, drug delivery systems and biopharmaceutics.
Science of Medicines = PHARMACEUTICS
- Drug formulation. This involves accounting for physicochemical drug properties, stability, and delivery routes to produce an appropriate dosage form.
- Drug delivery systems. This explores the innovative methods of improving drug efficacy, patient compliance and reducing side effects, by targeting drugs to specific cells/tissues.
- Biopharmaceutics. The study of drug absorption, distribution, metabolism, and excretion (ADME) following administration, to aid the design of dosage forms.
- Quality control. Ensuring quality, identity, dosage, and safety throughout the manufacturing process of a medicine.
- Regulatory science. The science of developing new tools, standards, and approaches to assess the safety, efficacy, quality, and performance of medicines.
The journey of a medicine
- Â This unit focuses on turning a drug into a medicine and what happens once it's taken/delivered to the patient.
- Drug properties, such as molecular weight, lipophilicity, ionization, solubility, dissolution rate, and chemical stability affect the development of the drug delivery system.
- Â The content covers drug properties and how they are used in drug delivery system development, concerning different delivery routes. These include: Lipophilicity, Ionization, Solubility vs pH, Dissolution rate, Chemical stability, and Particle size, crystallinity and hygroscopicity for solid drugs; and Compatibility with excipients and packaging materials.
- Illustrates the process through the diagram of a drug being transformed into a medicine and how it affects the patient.
Dosage forms
- Â Visual examples of diverse dosage forms
- Different dosage forms exist depending on the specific drug, desired effects, patient characteristics, and admin route
- Â Illustrates various dosage forms, like tablets and pills, capsules, solutions, creams, ointments, injections, inhalers, etc.,
Effects of drug
- Â (physicochemical properties), dosage form and physiology on release and absorption
- This section discusses the organs involved in drug's journey into, around, and out of the body, with an overview on ADME and pharmacokinetic components
- Â The detailed analysis of different elements that influence both the release and absorption of a drug in the body. This is connected to the different organ systems of the body and their parts.
Unit overview (MPharm)
- Provides a detailed breakdown of the unit's syllabus and schedule.
- Â Includes week-by-week lecture schedules, workshops, and tutorials.
- Includes links and guidance pertaining to assessments for different semesters.
Unit overview (Pharmacology)
- Â A summary of the unit, including weekly schedules, workshops, and assessments; with links to resources.
Semester 1 & 2 topics
- Key topics for each semester of the unit presented in an organised list format
Learning outcomes
- Summarizes the key learning outcomes of the unit and the unit's overall objectives.
Teaching on the unit
- Explains the teaching strategies for the unit.
Teaching on the unit – MPharm only
- Describes additional teaching approaches specifically for MPharm students.
Problem-based learning (PBL) – MPharm only
- Presents the approach and detailed tasks for the problem-based learning component of the unit. Explains what to expect in the workshops.
Assessment
- Â A breakdown of assessments for the MPharm and Pharmacology parts of the unit, detailing the components of each examination, and the necessary scores required to pass the unit.Â
Moodle
- Information on access, resources, and communication tools available through the Moodle platform for this course.
Semester 1 topics
- Detailed outline of topics covered during semester one, in the list format.
Semester 2 topics
- Detailed outline of topics covered during semester two. Presented in a list format.
What is a medicine?
- Definition of medicine and its components, along with examples of brands and generics.Â
Medicinal product nomenclature
- Details about the naming convention for medicinal products, differentiating between brand names, chemical names, and trademarks.
Branded Drugs
- How new medicines are marketed as branded products, the process of obtaining marketing authorization (MA), and the role of patents.Â
Patent vs Marketing Life
- An illustrative graph representing the correlation between patent and marketing lifetimes for drugs.
Pharmaceutical Research & Development (R&D) Industry
- This section covers the purpose and processes of the pharmaceutical R&D industry.
Pharmaceutical R&D Industry
- Â Focuses on the need for market growth and funding the next generation of compounds, including the need for a pipeline of new chemical entities (NCEs).
Astra Zeneca Pipeline (2014)
- Â Provides a detailed breakdown of Astra Zeneca's drug pipeline, categorizing the compounds by their type and stage.
Pharmaceutical R&D companies have a mixed portfolio of products
- Â Illustrates the portfolio mix of pharmaceutical R&D companies.
Global Distribution of Pharmaceutical Sales
- Â Visually represents the global distribution of pharmaceutical sales, showing percentages allocated to different countries.
Medicines expenditure per person
- Â Provides a table comparison of medicines expenditure per person in different countries, including monetary figures
What $250 of Qvar looks like ...
- Â Visually compares the equivalent price of prescription medications for different purchases.
Blockbuster drug model
- Overview of the blockbuster drug model in the pharmaceutical industry.
Other sections
- Â More detailed study points from the remaining pages of slides. This covers different aspects of drug delivery, as well as drug testing methodologies
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