Hydrophilic–Lipophilic Balance Concept, HLB classification and MCQs for GPAT,...
Hydrophilic–Lipophilic Balance Concept: The HLB concept was introduced by Griffin in 1947 to classify nonionic surfactants but has since been applied to ionic surfactants as well. In this system, each...
View ArticleCOPD, Classification of COPD, Pharmacodynamics, Pharmacokinetics, Side...
COPD: Chronic obstructive pulmonary disease, a group of lung disease that blocks airflow and make it difficult to breathe. Types of COPD: There are two main types of COPD. Chronic bronchitis: Which...
View ArticleExpectorants, Antitussives, used for the treatment of cough and MCQ for NEET...
COUGH: It is physiologically useful protective reflex that clears the respiratory tract of the accumulated mucus and foreign substances. It occurs due to stimulation of mechano/chemo receptors in...
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BTech, BSc Admissions Open 2021-22: Banasthali Vidyapith- the world’s Leading...
BTech, BSc Admissions Open 2021-22: Banasthali Vidyapith- the world’s Leading Women’s University Last date of Application: Aug 8, 2021 Apply Now For enquiry please contact: 9116624104 (Life sciences,...
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MBA, MCom Admissions Open 2021-22: Banasthali Vidyapith- the world’s Leading...
MBA, M.Com Admissions Open 2021-22: Banasthali Vidyapith- the world’s Leading Women’s University Last date of Application: Aug 8, 2021 Apply Now For enquiry please contact: 9116624104 (Life sciences,...
View ArticleSolubility: Combined effect of pH and solvents, distribution of solutes...
Combined Effect of pH and Solvents: Stockton and Johnson and Higuchi studied the effect of an increase of alcohol concentration on the dissociation constant of sulfathiazole, and Edmonson and Goyan...
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Concept of dissolution: Dissolution mechanism and MCQs for GPAT, NIPER,...
Orally administered drugs can exert their pharmacologic actions only when they come into systemic circulation from their site of administration, and thus, drug absorption is an important prerequisite....
View ArticleAsthma, Antiasthmatic drugs, Pharmacodynamics , Pharmacokinetics, Side...
Bronchial Asthma: It is chronic condition in which a person’s airways become inflamed swell, narrow and produce extra mucus which make difficulty in breathing. Sign and symptoms: Coughing, shortness of...
View ArticlePeptic ulcer, Classification of Antiulcer Drugs, Mechanism of action,...
PEPTIC ULER: Peptic ulcer are open sores that develop on the inner lining of the stomach and the upper portion of small intestine. It occurs in that part of the g.i.t which is exposed to gastric acid...
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Solubility: Effect of ionic dissociation and molecular association on...
Effect of Ionic Dissociation and Molecular Association on Partition: The solute can exist partly or wholly as associated molecules in one of the phases or it may dissociate into ions in either of the...
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Solubility: Calculating solubility of weak electrolytes as influenced by pH,...
Calculating the Solubility of Weak Electrolytes as Influenced by pH: From what has been said about the effects of acids and bases on solutions of weak electrolytes, it becomes evident that the...
View ArticleSolubility: Solubility of slightly soluble and weak electrolyte and MCQs for...
Systems of solids in liquids include the most frequently encountered and probably the most important type of pharmaceutical solutions. Many important drugs belong to the class of weak acids and bases....
View ArticleConcept of dissolution: Dissolution apparatus, dissolution conditions,...
Any dissolution test method involves immersing the dosage form in a suitable dissolution medium, which is kept in motion at a constant speed and requires determining the rate at which the drug...
View ArticleConcept of dissolution: In vitro In vivo correlation, Biopharmaceutical...
IN VITRO–IN VIVO CORRELATION: IVIVC refers to a relationship between a physicochemical characteristic of the dosage form, as determined by in vitro dissolution and biological property and as determined...
View ArticleGastroesophageal reflux disease, drugs used in GERD, side effects and MCQs...
GERD: Gastroesophageal reflux disease, it is a digestive disease in which stomach acid or bile irritates the food pipe lining. This is a chronic disease in which stomach acid and bile flows into the...
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Concept of diffusion: Laws of diffusion, Steady state diffusion, Measurement...
Diffusion is defined as the mass transfer of individual molecules of a substance (diffusant), brought about by random molecular motion along a concentration gradient. Diffusion is caused by the...
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Concept of diffusion: Applications of diffusion principles and MCQs for GPAT,...
APPLICATIONS OF DIFFUSION PRINCIPLES: Drug Absorption by Passive Diffusion – Passive diffusion is the major trans-membrane transport process for most drugs. The driving force for passive diffusion is...
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Concept of diffusion: Drug release from polymer matrices (Part – I) and MCQs...
DRUG RELEASE FROM POLYMER MATRICES: When the conventional dosage forms (i.e. tablets, capsules, ointment or creams) are administered orally or topically, the active drug in the dosage form is...
View ArticleConcept of diffusion: Drug release from polymer matrices (Part – II) and MCQs...
Diffusion During Swelling of Matrix – When water-soluble drugs are entrapped in glassy hydrogels, the release of the drugs engages simultaneously the absorption of water and desorption of drug while...
View ArticlePowders: Advantages and limitations as dosage form, powders as dosage form...
The term “powder” has more than one connotation in pharmacy. It may be used to describe the physical form of a material, that is, a dry substance composed of finely divided particles. Or, it may be...
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