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

Aldehyde Chemical Structure

October 25, 2025 Harsh Singh Rajput

Aldehyde chemical structure, terminal carbonyl formyl group, 2D skeletal formula R–CHO

1. Identification Summary Aldehyde is a carbonyl functional group in which the carbonyl carbon is bonded to one … Read more

Fructose Chemical Structure

October 25, 2025 Harsh Singh Rajput

1. Identification Summary Fructose is a ketohexose monosaccharide (C₆H₁₂O₆). It exists predominantly as furanose/pyranose hemiketals in solution and … Read more

Pyridine Chemical Structure

October 25, 2025 Harsh Singh Rajput

Pyridine chemical structure, six-membered nitrogen heteroaromatic ring, 2D skeletal formula, C5H5N

1. Identification Summary Pyridine is a six-membered nitrogen heteroaromatic (C₅H₅N) isoelectronic with benzene, with a ring sp²-N that … Read more

Alcohol (Functional Group) Chemical Structure

October 24, 2025 Harsh Singh Rajput

Alcohol functional group (hydroxyl), generic 2D structure R–OH with hydrogen bonding concept

1. Identification Summary Alcohol (functional group) denotes an sp³ carbon bearing a hydroxyl (–OH) substituent: general formula R–OH. … Read more

Mechanism of Action of Antifungal Drugs

April 10, 2026October 24, 2025 Pharmacy Freak Editorial Team Harsh Singh Rajput

MOA of Antifungal Drugs

Introduction Antifungal drugs are pharmacological agents that target fungal infections (mycoses) of the skin, mucosa, and internal organs. … Read more

Mechanism of Action of Antifungal Drugs

October 17, 2025 Harsh Singh Rajput

Pharmacology and clinical mechanisms of Antifungal Drugs

Introduction Antifungal drugs are pharmacological agents used to treat fungal infections (mycoses) affecting the skin, mucous membranes, or … Read more

Ketone Chemical Structure

October 17, 2025 Harsh Singh Rajput

Ketone functional group, 2D skeletal formula R–C(=O)–R′ (no hydrogens on carbonyl carbon), carbonyl compound

1. Identification Summary Ketone is a carbonyl functional group in which the carbonyl carbon is bonded to two … Read more

Mechanism of Action of Antidepressant Drugs

April 10, 2026October 17, 2025 Pharmacy Freak Editorial Team Harsh Singh Rajput

MOA of Antidepressant Drugs

Introduction Antidepressant drugs are psychotropic agents used to treat major depressive disorder, anxiety, OCD, PTSD, and chronic pain … Read more

Carboxylic Acid Chemical Structure

October 17, 2025 Harsh Singh Rajput

Carboxylic acid functional group, 2D skeletal formula R–C(=O)OH, carboxyl group

1. Identification Summary Carboxylic acid denotes the carboxyl (–C(=O)OH) functional group; general formula R–COOH. Core features: acidic proton on the hydroxyl, resonance-stabilized carboxylate conjugate … Read more

Mechanism of Action of Anticonvulsant Drugs

April 10, 2026October 16, 2025 Pharmacy Freak Editorial Team Harsh Singh Rajput

MOA of Anticonvulsant Drugs

Introduction Anticonvulsant drugs, also called antiepileptic drugs (AEDs), are agents that suppress abnormal electrical discharges in the brain … Read more