Pharma Easy Notes @Pharmacy

💊 Drug of the Day – 4 : Amoxicillin 📅 Series: Drug of the Day (PharmaEasyNotes) 📖 Category: Pharmacology | Antibiotics 🔹 Introduction Amoxicillin is a broad-spectrum β-lactam antibiotic belonging to the penicillin group . It is one of the most commonly prescribed antibiotics worldwide due to its high efficacy, oral bioavailability, and safety profile . 🔹 Structure 🧪 Amoxicillin is a semi-synthetic derivative of ampicillin with an added hydroxyl group. 🔹 Mechanism of Action (MOA) Inhibits bacterial cell wall synthesis Binds to penicillin-binding proteins (PBPs) Prevents peptidoglycan cross-linking Leads to cell lysis and bacterial death 👉 It is bactericidal in action. 🔹 Pharmacokinetics Absorption: Well absorbed orally Distribution: Wide distribution, including respiratory tract, middle ear, urine Metabolism: Partial hepatic metabolism Excretion: Renal excretion (mainly unchanged drug) 🔹 Uses / Indications ✅ Respiratory tract infe...

📌 Aim: To carry out the limit test for heavy metals present in pharmaceutical substances as an impurity. 🎯 Principle The test is based on the reaction of heavy metals (like lead) with hydrogen sulfide (H₂S) in an acidic medium, producing a brownish-black coloration of metal sulfides . The intensity of this color is compared with a standard lead solution prepared simultaneously. 🧰 Materials Required Nessler cylinders Test sample solution Standard lead solution (Pb²⁺) Dilute acetic acid Hydrogen sulfide (H₂S) water or thioacetamide reagent 🧪 Procedure Take the sample solution in a Nessler cylinder. Add dilute acetic acid to adjust the pH. Add a few drops of thioacetamide reagent (or pass H₂S gas) . Prepare a standard solution of lead in another Nessler cylinder. Keep both cylinders side by side for comparison. 🔬 Reaction Involved P b 2 + + H 2 S    →    P b S ↓    ( b r o w n i s h − b l a c k p r e c i p i t a t e ) Pb^{2+} + H_2S \; \...

Welcome to Semester 5 of your B.Pharmacy journey! This semester takes you deeper into clinical, regulatory, and quality domains of the pharmaceutical sciences. 📚 Subjects in Semester 5 (Theory + Practical) Subject Code Subject Name Type BP501T Medicinal Chemistry – II Theory BP502T Industrial Pharmacy – I Theory BP503T Pharmacology – II Theory BP504T Pharmacognosy and Phytochemistry – II Theory BP505T Pharmaceutical Jurisprudence Theory BP506P Industrial Pharmacy – I Practical BP507P Pharmacology – II Practical BP508P Pharmacognosy and Phytochemistry – II Practical 📘 Recommended Books for Semester 5 Subject Book Title & Author(s) Medicinal Chemistry – II ➤ Foye's Principles of Medicinal Chemistry                                           ➤ Wilson and Gisvold’s Textbook                             ...