Hydrochlorothiazide
Generic Name: Hydrochlorothiazide
Uses & Medical Indications
Hypertension, edema
High blood pressure, fluid retention
Work Mechanism & Pharmacology
Patient Overview of Work Mechanism
Hydrochlorothiazide works at the cellular level to correct underlying biochemical imbalances, reduce clinical symptoms, and support overall health.
Clinical Mechanism of Action (MoA)
Hydrochlorothiazide exerts targeted therapeutic activity by interacting with specific cellular receptors, enzymatic pathways, or biological signaling cascades to relieve symptoms and restore physiological balance.
Dosage & Administration Guidelines
12.5-50 mg daily
1-2 mg/kg/day
Start at 12.5 mg
50 mg/day
Ineffective if CrCl < 30 mL/min
Use with caution
Side Effects & Safety Warnings
Increased urination, hypokalemia, dizziness
Hyponatremia, gout exacerbation, hypercalcemia
Anuria, sulfonamide allergy
Monitor electrolytes
Interactions (Drugs, Food & Alcohol)
Lithium, NSAIDs
N/A
Increased orthostatic hypotension
Identified Clinical Drug Interactions for Hydrochlorothiazide:
Lithium Intoxication & Acute Nephrotoxicity
Pregnancy & Breastfeeding Safety
Use with caution
Compatible but may decrease milk supply
Patient Counseling & Practical Advice
Take in the morning to avoid nocturia
Take as soon as remembered, skip if late in the day
BP, serum electrolytes
When to Seek Urgent Medical Attention
Seek immediate emergency medical care (call emergency services or proceed to the nearest emergency department) if you experience signs of a life-threatening allergic reaction (anaphylaxis: facial, lip, tongue, or throat swelling causing airway obstruction), severe cutaneous blistering with skin peeling, sudden intense chest pain, or symptoms of overdose.
Content for Hydrochlorothiazide was synthesized from standardized public health monographs, official pharmacopoeias, and health authorities:
- Central Drugs Standard Control Organization (CDSCO) — National List of Essential Medicines
- World Health Organization (WHO) — Model List of Essential Medicines
- Indian Pharmacopoeia Commission (IPC) — Indian Pharmacopoeia Drug Monographs
- National Health Service (NHS) — Medicines A to Z Clinical Guidelines
The information provided on this website is for educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.