The document discusses the structure and function of the human gastrointestinal tract (GIT) and the mechanisms and factors affecting drug absorption through the GIT. It covers the parts and functions of the GIT, as well as the accessory organs of the liver, pancreas, and gallbladder. It then discusses the three main mechanisms of drug absorption - passive diffusion, carrier-mediated transport, and pinocytosis. Finally, it outlines various pharmaceutical and patient-related factors that can influence drug dissolution and absorption in the GIT.
Computational modelling of drug disposition lalitajoshi9
computational modelling of drug disposition is the integral part of computer aided drug design. different kinds of tools being used in the prediction of drug disposition in human body. This topic in the CADD explains the details about the drug disposition, active transporters and tools.
Biopharmaceutic considerations in drug product design and In Vitro Drug Produ...PRAJAKTASAWANT33
Introduction, biopharmaceutic factors affecting drug bioavailability, rate–limiting steps in drug absorption, physicochemical nature of the drug formulation factors affecting drug product performance
This PPT includes what role does Dosage form impart on absorption. Why it is important in absorption. what should be its nature and type of dosage form.
Computational modelling of drug disposition lalitajoshi9
computational modelling of drug disposition is the integral part of computer aided drug design. different kinds of tools being used in the prediction of drug disposition in human body. This topic in the CADD explains the details about the drug disposition, active transporters and tools.
Biopharmaceutic considerations in drug product design and In Vitro Drug Produ...PRAJAKTASAWANT33
Introduction, biopharmaceutic factors affecting drug bioavailability, rate–limiting steps in drug absorption, physicochemical nature of the drug formulation factors affecting drug product performance
This PPT includes what role does Dosage form impart on absorption. Why it is important in absorption. what should be its nature and type of dosage form.
Gastrointestinal tract, Mechanism of drug absorption, Factors
affecting drug absorption, pH–partition theory of drug absorption. Formulation and physicochemical factors: Dissolution rate, Dissolution process, Noyes–Whitney equation and drug dissolution, Factors affecting the dissolution rate. Gastrointestinal absorption: Role of the dosage form: Solution (elixir, syrup and solution) as a dosage form ,Suspension as a dosage form, Capsule as a dosage form, Tablet as a dosage form ,Dissolution methods ,Formulation and processing factors, Correlation of in vivo data with in vitro dissolution data. Transport model: Permeability-Solubility-Charge State and the pH Partition Hypothesis, Properties of the Gastrointestinal Tract (GIT), pH Microclimate Intracellular pH Environment, Tight Junction Complex.
Statistical modeling in pharmaceutical research and developmentPV. Viji
Statistical modeling in pharmaceutical research and development , Statistical Modeling , Descriptive Versus Mechanistic Modeling , Statistical Parameters Estimation , Confidence Regions , Non Linearity at the Optimum , Sensitivity Analysis , Optimal Design , Population Modeling
REGULATORY AND INDUSTRY VIEWS ON QbD, SCIENTIFICALLY BASED QbD- EXAMPLES OF A...Ardra Krishna
The pharmaceutical Quantity by Design (QbD) is a systemic approach to development that begins with predefined objectives and emphasizes product and process understanding and process control, based on sound science and quantity risk management.
QbD has been adopted by U.S Food and Drug Administration (FDA) for the discovery, development and manufacture of drugs.
Quality- by- design (QbD) is a concept introduces by the International Conference on Harmonization (ICH) Q8 guidelines.
Gastrointestinal tract, Mechanism of drug absorption, Factors
affecting drug absorption, pH–partition theory of drug absorption. Formulation and physicochemical factors: Dissolution rate, Dissolution process, Noyes–Whitney equation and drug dissolution, Factors affecting the dissolution rate. Gastrointestinal absorption: Role of the dosage form: Solution (elixir, syrup and solution) as a dosage form ,Suspension as a dosage form, Capsule as a dosage form, Tablet as a dosage form ,Dissolution methods ,Formulation and processing factors, Correlation of in vivo data with in vitro dissolution data. Transport model: Permeability-Solubility-Charge State and the pH Partition Hypothesis, Properties of the Gastrointestinal Tract (GIT), pH Microclimate Intracellular pH Environment, Tight Junction Complex.
Statistical modeling in pharmaceutical research and developmentPV. Viji
Statistical modeling in pharmaceutical research and development , Statistical Modeling , Descriptive Versus Mechanistic Modeling , Statistical Parameters Estimation , Confidence Regions , Non Linearity at the Optimum , Sensitivity Analysis , Optimal Design , Population Modeling
REGULATORY AND INDUSTRY VIEWS ON QbD, SCIENTIFICALLY BASED QbD- EXAMPLES OF A...Ardra Krishna
The pharmaceutical Quantity by Design (QbD) is a systemic approach to development that begins with predefined objectives and emphasizes product and process understanding and process control, based on sound science and quantity risk management.
QbD has been adopted by U.S Food and Drug Administration (FDA) for the discovery, development and manufacture of drugs.
Quality- by- design (QbD) is a concept introduces by the International Conference on Harmonization (ICH) Q8 guidelines.
This is the presentation that I gathered information from different sources for my biology class. If the original authers find this presentation, please understand that I do not make it for business. Thank you.
Objective
Definition
Animal welfare board of India
Experimentation on animals
Committee for experimentation on animals
Power of entry and inspection
Power to prohibit experiments on animals
penalties
Objectives of the Drugs and Cosmetics Act
Definitions
DRUGS TECHNICAL ADVISORY BOARD (DTAB)
GOVERNMENT ANALYST
Drug Inspectors
Regulatory provisions relating to import of cosmetics
Offences & penalties
Loan license
Requirements pertaining to labeling of cosmetics
References
A glycogen storage disease (GSD, also glycogenosis and dextrinosis) is a metabolic disorder caused by an enzyme deficiency affecting glycogen synthesis, glycogen breakdown, or glucose breakdown, typically in muscles and/or liver cells.
PREPARATION AND IN-VITRO EVALUATION OF ITRACONAZOLE LOADED NANOSPONGES FOR T...Mahewash Sana Pathan
Itraconazole is an imidazole derivative and used for the treatment of local and systemic fungal infections. It is a BCS Class II drug having very low solubility in water i.e. 1-4ng/ml. The oral use of Itraconazole is not much recommended as it has many side effects. The present research has been undertaken with the aim to develop a topical hydrogel formulation of Itraconazole loaded nanosponges to increase the solubility, permeability and stability of itraconazole. Itraconazole loaded nanosponge was prepared by emulsion solvent diffusion method by using different concentrations of ethyl cellulose as a polymer, Polyvinyl alcohol as surfactant and dichloromethane as cross linking agent. Physical characteristics of the nanosponges as well as the drug entrapment efficiency, percentage drug content, Percent yield, drug polymer compatibility, solubility studies of the nanosponges were investigated. Particle size analysis and surface morphology of nanosponges were performed. The scanning electron microscopy of nanosponges showed that they were spherical in shape and spongy in nature. Drug entrapment efficiency was found to be in the range of 42.75 % to 73.10 %. The optimized nanosponge formulation was loaded into hydrogel using carbopol 940 and studied for pH, viscosity, in vitro drug release. Of the nanosponge formulations prepared, F4 was found to show drug release of 70.62%. It was concluded that Itraconazole nanosponge hydrogel may have increased solubility and drug release
The safe use of medicines is perhaps the single most important criteria that any regulatory authority within a given country has to ensure in order both to protect the public health and the integrity of its health care system. For the same purpose pharmacovigilance was established. According to WHO, Pharmacovigilance is the science and activities related to the collection, detection, and assessment of ADR’s. It promotes the systematic, rational use and assures the confidence for the safety of drugs. It improves patient care and safety. Significance of pharmacovigilance is growing as the patients or consumers have become more responsive about the advantage and hazard of medicines. Pharmacovigilance is a complex process and a robust system is essential to undertake the activity. A good pharmacovigilance system will identify the hazard aspects in the short period of time. This review article tries to explain the some basic principles, history and developments, methods and some scope of this developing field i.e. Pharmacovigilance in India.
Presentation include chapter solubility of drugs from second yr B-Pharm
Solubility, solubility expression, solute solvent interactions, solubility parameters, solvation and dissolution, factors affecting solubility, solubility of gases in liquids, liquids in liquids, fractional distillation, azeotropes, dissolution and drug release and diffusion.
Cosmetics regulatory: includes Regulatory provision relating to manufacture of cosmetics, Schedule M (II) of D & C rule 1945 deals with requirements for the factory premises for the manufacture of cosmetic, requirement of plant & equipment, conditions of licencing, regulatory provision on sale of cosmetics, loan licence, Regulatory provision relating to import of cosmetics, offences & penalties, List of amending Act and adaptation orders.
Pharmacovigilance is defined as, The pharmacological science and activities concerned with the detection, assessment, understanding and prevention of adverse reactions to medicines or Pharmacovigilance is the name given to the mechanisms and controls that together map and ensure the safety of a medicine throughout its life span – from test tube to patient.
Challenges in herbal formulation
Steps in herbal drug formulation
Types of conventional herbal formulations
Liquid herbal dosage forms
Solid herbal dosage forms
Other herbal dosage forms
Novel dosage form
Tom Selleck Health: A Comprehensive Look at the Iconic Actor’s Wellness Journeygreendigital
Tom Selleck, an enduring figure in Hollywood. has captivated audiences for decades with his rugged charm, iconic moustache. and memorable roles in television and film. From his breakout role as Thomas Magnum in Magnum P.I. to his current portrayal of Frank Reagan in Blue Bloods. Selleck's career has spanned over 50 years. But beyond his professional achievements. fans have often been curious about Tom Selleck Health. especially as he has aged in the public eye.
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Introduction
Many have been interested in Tom Selleck health. not only because of his enduring presence on screen but also because of the challenges. and lifestyle choices he has faced and made over the years. This article delves into the various aspects of Tom Selleck health. exploring his fitness regimen, diet, mental health. and the challenges he has encountered as he ages. We'll look at how he maintains his well-being. the health issues he has faced, and his approach to ageing .
Early Life and Career
Childhood and Athletic Beginnings
Tom Selleck was born on January 29, 1945, in Detroit, Michigan, and grew up in Sherman Oaks, California. From an early age, he was involved in sports, particularly basketball. which played a significant role in his physical development. His athletic pursuits continued into college. where he attended the University of Southern California (USC) on a basketball scholarship. This early involvement in sports laid a strong foundation for his physical health and disciplined lifestyle.
Transition to Acting
Selleck's transition from an athlete to an actor came with its physical demands. His first significant role in "Magnum P.I." required him to perform various stunts and maintain a fit appearance. This role, which he played from 1980 to 1988. necessitated a rigorous fitness routine to meet the show's demands. setting the stage for his long-term commitment to health and wellness.
Fitness Regimen
Workout Routine
Tom Selleck health and fitness regimen has evolved. adapting to his changing roles and age. During his "Magnum, P.I." days. Selleck's workouts were intense and focused on building and maintaining muscle mass. His routine included weightlifting, cardiovascular exercises. and specific training for the stunts he performed on the show.
Selleck adjusted his fitness routine as he aged to suit his body's needs. Today, his workouts focus on maintaining flexibility, strength, and cardiovascular health. He incorporates low-impact exercises such as swimming, walking, and light weightlifting. This balanced approach helps him stay fit without putting undue strain on his joints and muscles.
Importance of Flexibility and Mobility
In recent years, Selleck has emphasized the importance of flexibility and mobility in his fitness regimen. Understanding the natural decline in muscle mass and joint flexibility with age. he includes stretching and yoga in his routine. These practices help prevent injuries, improve posture, and maintain mobilit
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...i3 Health
i3 Health is pleased to make the speaker slides from this activity available for use as a non-accredited self-study or teaching resource.
This slide deck presented by Dr. Kami Maddocks, Professor-Clinical in the Division of Hematology and
Associate Division Director for Ambulatory Operations
The Ohio State University Comprehensive Cancer Center, will provide insight into new directions in targeted therapeutic approaches for older adults with mantle cell lymphoma.
STATEMENT OF NEED
Mantle cell lymphoma (MCL) is a rare, aggressive B-cell non-Hodgkin lymphoma (NHL) accounting for 5% to 7% of all lymphomas. Its prognosis ranges from indolent disease that does not require treatment for years to very aggressive disease, which is associated with poor survival (Silkenstedt et al, 2021). Typically, MCL is diagnosed at advanced stage and in older patients who cannot tolerate intensive therapy (NCCN, 2022). Although recent advances have slightly increased remission rates, recurrence and relapse remain very common, leading to a median overall survival between 3 and 6 years (LLS, 2021). Though there are several effective options, progress is still needed towards establishing an accepted frontline approach for MCL (Castellino et al, 2022). Treatment selection and management of MCL are complicated by the heterogeneity of prognosis, advanced age and comorbidities of patients, and lack of an established standard approach for treatment, making it vital that clinicians be familiar with the latest research and advances in this area. In this activity chaired by Michael Wang, MD, Professor in the Department of Lymphoma & Myeloma at MD Anderson Cancer Center, expert faculty will discuss prognostic factors informing treatment, the promising results of recent trials in new therapeutic approaches, and the implications of treatment resistance in therapeutic selection for MCL.
Target Audience
Hematology/oncology fellows, attending faculty, and other health care professionals involved in the treatment of patients with mantle cell lymphoma (MCL).
Learning Objectives
1.) Identify clinical and biological prognostic factors that can guide treatment decision making for older adults with MCL
2.) Evaluate emerging data on targeted therapeutic approaches for treatment-naive and relapsed/refractory MCL and their applicability to older adults
3.) Assess mechanisms of resistance to targeted therapies for MCL and their implications for treatment selection
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These lecture slides, by Dr Sidra Arshad, offer a quick overview of physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar leads (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
As flu season approaches, health officials in Bangalore, Karnataka, are urging residents to get their flu vaccinations. The seasonal flu, while common, can lead to severe health complications, particularly for vulnerable populations such as young children, the elderly, and those with underlying health conditions.
Dr. Vidisha Kumari, a leading epidemiologist in Bangalore, emphasizes the importance of getting vaccinated. "The flu vaccine is our best defense against the influenza virus. It not only protects individuals but also helps prevent the spread of the virus in our communities," he says.
This year, the flu season is expected to coincide with a potential increase in other respiratory illnesses. The Karnataka Health Department has launched an awareness campaign highlighting the significance of flu vaccinations. They have set up multiple vaccination centers across Bangalore, making it convenient for residents to receive their shots.
To encourage widespread vaccination, the government is also collaborating with local schools, workplaces, and community centers to facilitate vaccination drives. Special attention is being given to ensuring that the vaccine is accessible to all, including marginalized communities who may have limited access to healthcare.
Residents are reminded that the flu vaccine is safe and effective. Common side effects are mild and may include soreness at the injection site, mild fever, or muscle aches. These side effects are generally short-lived and far less severe than the flu itself.
Healthcare providers are also stressing the importance of continuing COVID-19 precautions. Wearing masks, practicing good hand hygiene, and maintaining social distancing are still crucial, especially in crowded places.
Protect yourself and your loved ones by getting vaccinated. Together, we can help keep Bangalore healthy and safe this flu season. For more information on vaccination centers and schedules, residents can visit the Karnataka Health Department’s official website or follow their social media pages.
Stay informed, stay safe, and get your flu shot today!
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...kevinkariuki227
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
The prostate is an exocrine gland of the male mammalian reproductive system
It is a walnut-sized gland that forms part of the male reproductive system and is located in front of the rectum and just below the urinary bladder
Function is to store and secrete a clear, slightly alkaline fluid that constitutes 10-30% of the volume of the seminal fluid that along with the spermatozoa, constitutes semen
A healthy human prostate measures (4cm-vertical, by 3cm-horizontal, 2cm ant-post ).
It surrounds the urethra just below the urinary bladder. It has anterior, median, posterior and two lateral lobes
It’s work is regulated by androgens which are responsible for male sex characteristics
Generalised disease of the prostate due to hormonal derangement which leads to non malignant enlargement of the gland (increase in the number of epithelial cells and stromal tissue)to cause compression of the urethra leading to symptoms (LUTS
Anti ulcer drugs and their Advance pharmacology ||
Anti-ulcer drugs are medications used to prevent and treat ulcers in the stomach and upper part of the small intestine (duodenal ulcers). These ulcers are often caused by an imbalance between stomach acid and the mucosal lining, which protects the stomach lining.
||Scope: Overview of various classes of anti-ulcer drugs, their mechanisms of action, indications, side effects, and clinical considerations.
2. Structure and function of human GIT
Absorption of drugs
Mechanisms of Absorption
Factors affecting drug Absorption
Dissolution of drugs
Factors affecting dissolution
Noyes- Whitney equation
pH Partition theory
3. (Digestive tract, digestional tract, gut, alimentary Canal)
“An organ system within humans and other animals
which takes in food, digests it to extract and absorb energy
& nutrients, & expels the remaining waste as feces”
Parts of human GIT:-
1. Mouth
2. Oesophagus
3. Stomach
4. Small intestine
5. Large intestine
6. Rectum
7. Anus.
4. The accessory organs of GIT
1. Liver
2. Pancreas
3. Gall bladder.
Functions of GIT
1. Transportation
2. Digestion
3. Absorption of food
5. Mucosal layer is composed of stratified squamous
epithelial cells.
Main structures:
1. Tongue
2. Salivary glands
3. Teeth
4. Pharynx
Fun- breakdown of food into smaller parts.
6. “Food tube.”
Produces mucus which acts to-
1. Facilitates the passage of food.
2. Lubricate & protect the oesophagus.
At the lower end there is a GASTROEOSOPHAGEAL
SPHINCTER ( cardiac SPHINCTER ) which prevents
the reflux of gastric contents into the oesophagus.
7. Parts-
1. Cardiac region
2. Fundus
3. Body of stomach
4. Antrum
5. Pylorus
PYLORIC SPHINCTER allow passage of chyme into
the small intestine.
Fun- store, churn & puree food into chyme.
Digestion of fats, proteins, alcohol, water &
glucose. Production of gastric acid.
12. Liver:-
Largest organ, located in
the upper abdomen.
3 lobes- right, left & caudate,
subdevided into further
8 segments.
Functional unit is Acinus.
Play imp role in metabolism.
Gall bladder:-
Pear shaped, sac like organ attached to liver.
Store bile salts, which absorb & emulsify fats & fat soluble
vitamins.
13. Pancreas:-
Both an endocrine & exocrine gland.
Digestive enzymes secreted by pancreas are-
1. Trypsin
2. Lipase
3. Amylase
14. No. Parts of GIT ph
1 Salivary glands 7.5
2 Upper stomach 4 -6.5
3 Lower stomach 1.5 - 4
4 Duodenum 7 – 8.5
5 Small intestine 4-7
6 Large intestine 4- 7
15. “The movement of unchanged drug from the site of
administration to systemic circulation”.
Or
The process of movement of unchanged drug from the
site of administration to the site of measurement. i.e.,
plasma.
16.
17. Main Mechanisms Of Drug Absorption
/Transport:-
1. Passive diffusion
2. Carrier mediated transport
3. Pinocytosis
18.
19. E.g. Absorption of
urea, water, sugar.
Entry of drugs into
liver
Removal of drugs
from CSF.
20. E.g. Entry of
glucose into RBCs.
Intestinal
absorption of vit B.
21. E.g. Absorption of 5-
FU through
pyrimidine
transport system.
Absorption of methyl -
dopa & leavodopa
through L- amino acid
transport system.
23. (A)Pharmaceutical factors
(1)Physicochemical factors
a) Ph partition hypothesis
b) Polymorphism & amorphism
c) Salt form of a drug
d) Particle size & effective surface area
(2)Formulation factors
a) Disintegration time
b) Manufacturing variables
c) Pharmaceutical ingredients (Excipients, Adjuvants)
d) Nature & type of dosage form
e) Product age & storage conditions
24. (B)Patient related factors
(1)Physiological conditions
a) Membrane physiology
i. Membrane Structure
ii. Transport Process
b) GI physiology
c) Characteristics of GI
Physiology
d) GI Motility and emptying
e) Blood flow through GIT
f) Influence of food
g) Intestinal transit time
h) Pre-systemic metabolism
by various enzymes.
i) Age
(2)Clinical factors
a) diseases
b) surgery
c) infections
d) interactions
25. Dissolution is referred as a process in which solid phase goes into
liquid phase
Dissolution rate is defined as ‘amount drug subs that goes in the
solution per unit time under standard conditions of temperature &
solvent composition.’
26. 1. Physicochemical
Properties of Drug
a) Drug solubility
b) Salt formation
c) Particle size
d) Solid state characteristics
e) Co-precipitation
2. Drug Product
Formulation Factors
a) Diluents
b) Disintegrants
c) Binders & granulating
agent
d) Lubricants
e) Surfactants
f) Water soluble dyes
g) Coating polymers
27. 3. Processing Factors
a) Method of granulation
b) Compression force
c) Drug excipient
interaction
d) Storage conditions
4. Factors Relating
Dissolution Apparatus
a) Agitation
b) temperature
c) Disso media.
28. Based on Fick’s second law of diffusion,
. dc/dt = k ( Cs – Cb )
Where, dC/ dt : rate of dissolution
k : rate constant ( per sec)
Cs : solution conc at solid surface
Cb : conc in the bulk.
29. Dissolution from a single spherical particle.
Based on Fick’s first law of diffusion,
. dm/ dt= D A kw/o ( Cs – Cb ) / V h
Where, dm / dt : rate of mass transfer
D : diffusion coefficient
A : surface area
kw/o : Partition coefficient
( Cs – Cb ) : conc gradient
V : volume of dissolution media
h : thickness of boundary layer.
30.
31. . “For drug compounds of molecular wt
greater than 100, their transport across the
biomembrane by passive diffusion, is governed by :
1. The dissociation constant of drug
2. Lipid solubility
3. pH at the Absorption site.”
Brodie proposed this theory.
Hsnderson – hasselbach equation,
. For an acid,
pH = pka + log 10 ( [A-] / [HA] )
For a base,
pH = pka + log10 ( [B] /[ BH+ ])
pka = - log10 k.