Author: Abid Qadri
Dexamethasone
Dexamethasone is a long-acting glucocorticoid essential for anesthesiologists. It’s a cornerstone of ERAS protocols, providing potent prophylaxis against PONV, reducing airway and tissue edema, and offering opioid-sparing analgesia. While highly effective, its use requires careful monitoring for perioperative hyperglycemia, especially in diabetic patients.
Dobutamine
Dobutamine is a potent synthetic inotrope primarily acting on β1-adrenergic receptors to dramatically increase cardiac contractility. Its principal role is in managing acute decompensated heart failure and other low cardiac output states, where the therapeutic goal is to boost the heart’s pumping force without significantly increasing vascular resistance.
Dopamine
Dopamine is a potent endogenous neurotransmitter used clinically as a vasopressor and inotrope, uniquely characterized by its dose-dependent effects on the cardiovascular system. At low doses, it acts on dopaminergic receptors to increase renal blood flow; at intermediate doses, it stimulates β1-receptors to boost cardiac contractility; and at high doses, it activates α1-receptors to cause potent vasoconstriction.
Adenosine
Atropine
Adrenaline (Epinephrine)
Nitrous Oxide
Nitrous oxide (N₂O) is frequently encountered in today’s clinical practice. This colorless, non-flammable gas has a fascinating history and remains one of the oldest anesthetic agents still in use today. It was first synthesized by English chemist Joseph Priestley in 1772, though he didn’t recognize its potential medical applications.
Endotracheal Tube
Propofol
If there’s one drug you need to know inside and out, it’s this one – Propofol. It’s in every OR, every GI lab, and every ICU. It’s elegant, fast, and powerful. But with great power comes great responsibility (and significant hypotension).




