Harsh Singh Rajput

Harsh Singh Rajput is a pharmacist currently working at ESIC and holds an MBA in Pharmaceutical Management from NIPER Hyderabad. He has a strong academic record with top ranks in national-level pharmacy exams, including AIR 61 in NIPER 2024 (MS/M.Pharm), AIR 27 in NIPER MBA, AIR 147 in GPAT 2024, AIR 907 in GPAT 2023, and AIR 6 in AIIMS CRE-2025 for Drug Store Keeper. At PharmacyFreak.com, he contributes expert content, exam strategies, and practical guidance for future pharmacists. Mail- harsh@pharmacyfreak.com

Azithromycin Chemical Structure

October 14, 2025 Harsh Singh Rajput

Azithromycin chemical structure (azalide macrolide), 2D skeletal formula, C38H72N2O12

1. Identification Summary Azithromycin is a 15-membered azalide macrolide antibiotic indicated for susceptible infections across respiratory, skin/soft-tissue, sexually … Read more

Losartan Chemical Structure

October 14, 2025 Harsh Singh Rajput

Losartan chemical structure (angiotensin II receptor blocker), 2D skeletal formula, C22H23ClN6O

1. Identification Summary Losartan is an angiotensin II receptor blocker (ARB) for hypertension, diabetic nephropathy in type 2 … Read more

Cholesterol Chemical Structure

October 14, 2025 Harsh Singh Rajput

Cholesterol chemical structure (sterol), 2D skeletal formula, C27H46O

1. Identification Summary Cholesterol is an endogenous sterol (cholest-5-en-3β-ol) essential for mammalian cell membranes, precursor of bile acids, … Read more

Mechanism of Action of Antibiotics

October 13, 2025 Harsh Singh Rajput

MOA of Antibiotics

Introduction Antibiotics are chemotherapeutic agents used to kill or inhibit bacterial growth by targeting essential microbial functions that … Read more

Mechanism of Action of Antibacterial Drugs

April 10, 2026October 13, 2025 Pharmacy Freak Editorial Team Harsh Singh Rajput

MOA of Antibacterial Drugs

Introduction Antibacterial drugs, commonly called antibiotics, are agents that kill or inhibit the growth of bacteria by targeting … Read more

Glucose Chemical Structure

October 13, 2025 Harsh Singh Rajput

Glucose (dextrose) 2D chemical structure. Formula C6H12O6 (anhydrous); IUPAC (2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanal; CAS 50-99-7.

1. Identification Summary Glucose (D-glucose; dextrose) is a naturally occurring aldohexose monosaccharide that serves as a primary cellular … Read more

Omeprazole Chemical Structure

October 13, 2025 Harsh Singh Rajput

Omeprazole chemical structure (PPI), 2D skeletal formula, C17H19N3O3S

1. Identification SummaryOmeprazole is a proton-pump inhibitor (PPI) used to reduce gastric acid secretion, treating GERD, peptic ulcer … Read more

Aspirin Chemical Structure

October 13, 2025 Harsh Singh Rajput

Aspirin (acetylsalicylic acid) 2D chemical structure, C9H8O4, salicylate ester

1. Identification SummaryAspirin (acetylsalicylic acid) is a nonsteroidal anti-inflammatory drug (NSAID) used for analgesia, antipyresis, anti-inflammation, and—at low … Read more

Mechanism of Action of Antacids

April 10, 2026October 11, 2025 Pharmacy Freak Editorial Team Harsh Singh Rajput

MOA of Antacids

Introduction Antacids are weakly basic compounds that neutralize excess gastric acid in the stomach, providing rapid relief from … Read more

Ibuprofen Chemical Structure

October 11, 2025October 11, 2025 Harsh Singh Rajput

Ibuprofen 2D chemical structure (propionic-acid NSAID), C13H18O2

1. Identification SummaryIbuprofen is a widely used nonsteroidal anti-inflammatory drug (NSAID) indicated for relief of mild–moderate pain, fever, … Read more