Hidroclorotiazida Aristo (Hydrochlorothiazide)

Hidroclorotiazida Aristo is indicated for several clinical situations where reduction of excess fluid or blood pressure is required.

• Hypertension (high blood pressure)
• Edema associated with congestive heart failure
• Peripheral edema due to renal or hepatic disease
• Prevention of fluid overload in chronic kidney disease
• Adjunct therapy with other antihypertensive agents

• Hydrochlorothiazide acts by inhibiting the Na⁺/Cl⁻ symporter located in the distal convoluted tubule of the nephron. This blockade reduces sodium and chloride reabsorption, leading to increased excretion of water along with electrolytes. The resulting decrease in extracellular fluid volume lowers cardiac output and peripheral vascular resistance, contributing to its antihypertensive and diuretic effects.

Like other thiazide diuretics, Hidroclorotiazida Aristo may cause a range of adverse reactions, most of which are dose‑related and reversible.

Common

• Increased frequency of urination
• Electrolyte disturbances such as low potassium (hypokalemia)
• Dizziness or light‑headedness
• Headache
• Fatigue or weakness
• Mild elevation of blood glucose

Serious

• Severe dehydration
• Marked electrolyte imbalances (hyponatremia, hypokalemia, hyperuricemia)
• Acute gout attacks
• Allergic reactions including rash, angioedema, or Stevens‑Johnson syndrome
• Pancreatitis
• Blood dyscrasias such as leukopenia or thrombocytopenia

Before starting Hidroclorotiazida Aristo, certain health considerations should be reviewed.

• Assess renal and hepatic function, as impairment may affect drug clearance.
• Monitor serum electrolytes, especially potassium and sodium, during therapy.
• Use caution in patients with a history of gout or hyperuricemia.
• Evaluate blood glucose levels in diabetic patients, as thiazides can raise glucose.
• Discuss any known allergies to sulfonamide‑derived drugs.
• Consider potential effects on lipid profiles, particularly in long‑term use.
• Pregnancy and breastfeeding status should be clarified with a healthcare professional.

Hidroclorotiazida Aristo can interact with several medications, influencing efficacy or safety.

Avoid

• Concurrent use with other potent diuretics or lithium, which may increase toxicity.
• NSAIDs (e.g., ibuprofen, naproxen) that can reduce diuretic effectiveness and impair renal function.
• ACE inhibitors or ARBs combined without monitoring, as they may enhance potassium loss.
• Antidiabetic agents, because thiazides may diminish glucose control.
• Antihypertensive agents that could cause excessive blood pressure reduction.

Use with caution

• Anticoagulants (e.g., warfarin) due to possible alteration of INR.
• Corticosteroids, which may exacerbate fluid and electrolyte shifts.
• Digoxin, as electrolyte disturbances can increase the risk of toxicity.
• Antimicrobials such as cyclophosphamide or sulfonamides, which may heighten adverse reactions.
• Medications that affect uric acid levels, like azathioprine, requiring monitoring for gout flares.