Bromodiphenhydramine is a diphenhydramine derivative, an antihistamine used to treat allergy symptoms. As the name suggests, Bromodiphenhydramine contains a bromine atom in its structure. Adding bromine is a chemical modification intended to alter the properties or enhance the effects of the original diphenhydramine compound. Structure Synthesis Mechanism of action Bromodiphenhydramine competes with free histamine for … Read more
Dimenhydrinate is an antihistamine medication known for its efficacy in alleviating allergic symptoms. Notable for its H1 receptor-blocking action, it provides relief from conditions such as itching and runny nose. Moreover, dimenhydrinate’s central nervous system depression induces drowsiness, making it useful for motion sickness and as a sleep aid. With additional antiemetic and antimuscarinic properties, … Read more
Aminoalkyl ether analogs refer to chemical compounds that share a structural similarity with aminoalkyl ethers. These analogs typically involve the substitution of certain functional groups or moieties while maintaining the basic aminoalkyl ether framework. The term “aminoalkyl ether” indicates the presence of an amino group (-NH2) and an ether group (-O-) in the molecular structure. … Read more
H1-antagonists, also known as H1 receptor antagonists or antihistamines, are a class of drugs that block the action of histamine at the H1 receptors. The body produces histamine, a natural substance that plays a key role in various physiological processes, especially in immune responses and allergic reactions. Ethylene diamine derivatives Ethylene diamine derivatives, characterized by … Read more
1. H1-Antagonists with classical structures According to the chemical features, they are further classified as follows: a. Ethylene diamine derivatives b. Amino alkyl ether analogues c. Cyclic basic chain analogues d. Mono amino propyl analogues d. i. Saturated analogues d. ii. Unsaturated analogues e. Tricyclic ring system or Phenothiazine derivatives f. Dibenzocyclo heptane’s g. Miscellaneous … Read more
The structure-activity relationship (SAR) for H1 receptor antagonists, commonly known as antihistamines, involves understanding how the chemical structure of a compound influences its pharmacological activity in blocking the H1 receptors. Here are some key aspects of the SAR for H1 receptor antagonists: 1. Aryl groups The diaryl substitution is essential for significant H1 affinity. It is … Read more
INTRODUCTION Histamine, [2-(imidazol-4-y1) ethylamine], which is biosynthesized by decarboxylation of the essential amino acid histidine, is found in all organs and tissues of the human body. Reaction: Histamine is stored within the secretory granules of mast cells, maintaining a pH of 5.5. It exists in a positively charged state and forms ionic complexes with the … Read more
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What is Statistics? Statistics is a branch of applied mathematics that deals with data collection, classification, analysis, and interpretation. The word statistics is derived from the Latin word ‘status’ means a ‘political state’ or ‘government’. What is Biostatistics? Biostatistics is a branch of biological science that deals with the study and methods of collection, presentation, analysis, and interpretation … Read more
The holistic perception of harmony at all levels of existence emphasizes the interconnectedness and interdependence of all things in the universe. This perspective recognizes harmony across individual and collective levels, extending from the physical to the spiritual realms. This interconnectedness underscores the significance of each component in sustaining the harmonious balance within the broader … Read more
