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Harsh Singh Rajput

I am pursuing MBA in pharmaceutical management from NIPER Hyderabad with a strong academic record and proven success in national-level pharmacy entrance exams. I secured AIR 61 in NIPER 2024 (MS/M.Pharm) and AIR 27 in NIPER MBA, along with AIR 147 in GPAT 2024 and AIR 907 in GPAT 2023. I also achieved AIR 6 in AIIMS CRE-2025 for Drug Store Keeper and was selected as a Pharmacist (AIR 61) for ESIC. Additionally, I was the Runner-Up in Round 2 of the EY Case Study Competition. At PharmacyFreak.com, I aim to guide future pharmacists through expert content, exam strategies, and insightful resources based on real experience and academic excellence. Mail- harsh@pharmacyfreak.com

Mechanism of Action of Spironolactone

June 30, 2025 by Harsh Singh Rajput
spironolactone mechanism of action

Introduction Spironolactone is a potassium-sparing diuretic and aldosterone antagonist used primarily in the treatment of heart failure, hypertension, … Read more

Mechanism of Action of Ondansetron

June 30, 2025 by Harsh Singh Rajput
Ondansetron Mechanism of Action

Introduction Ondansetron is a highly selective 5‑hydroxytryptamine 3 (5‑HT₃) receptor antagonist used primarily as an antiemetic. It prevents … Read more

Mechanism of Action of NSAIDs

June 30, 2025 by Harsh Singh Rajput
NSAID Mechanism of Action

Introduction Non-steroidal anti-inflammatory drugs (NSAIDs) are a widely used class of medications with analgesic, anti-inflammatory, and antipyretic properties. … Read more

Mechanism of Action of Tranexamic Acid

June 29, 2025 by Harsh Singh Rajput
Tranexamic Acid Mechanism of Action

Introduction Tranexamic acid (TXA) is an antifibrinolytic agent commonly used to control or prevent excessive bleeding in trauma, … Read more

Mechanism of Action of Hydralazine

June 29, 2025June 29, 2025 by Harsh Singh Rajput
hydralazine mechanism of action

Introduction Hydralazine is a potent vasodilator used primarily in the management of hypertension and heart failure, particularly in … Read more

Mechanism of Action of Heparin

June 29, 2025June 29, 2025 by Harsh Singh Rajput
Heparin mechanism of action

Introduction Heparin is a widely used anticoagulant primarily employed in the prevention and treatment of thromboembolic disorders such … Read more

Mechanism of Action of Gabapentin

June 29, 2025 by Harsh Singh Rajput
Illustration of Gabapentin's mechanism of action on voltage-gated calcium channels

Introduction Gabapentin is an anticonvulsant and analgesic drug primarily used in the treatment of epilepsy, neuropathic pain, and … Read more

Mechanism of Action of Insulin

June 29, 2025June 28, 2025 by Harsh Singh Rajput
Insulin Mechanism of Action

Introduction Insulin is a peptide hormone produced by pancreatic β‑cells. It belongs to the class of anabolic hormones. … Read more

Mechanism of Action of Digoxin (Cardiac Glycoside)

June 28, 2025June 24, 2025 by Harsh Singh Rajput
Digoxin MOA – Inhibition of Na⁺/K⁺-ATPase Increasing Contractility

Introduction Digoxin is a well-known cardiac glycoside used in the treatment of heart failure and atrial fibrillation. Derived … Read more

Mechanism of Action of Clonidine (Centrally Acting Antihypertensive)

June 28, 2025June 24, 2025 by Harsh Singh Rajput
Clonidine MOA – Central α2 Agonist Reducing Sympathetic Outflow

Introduction Clonidine is a centrally acting α2-adrenergic receptor agonist used primarily for hypertension, but also for opioid withdrawal, … Read more

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