Inspra (Eplerenone) for Hypertension and Heart Failure

Inspra contains eplerenone, a selective mineralocorticoid receptor antagonist used for high blood pressure and for selected people with heart failure after myocardial infarction. It blocks aldosterone, reducing sodium and fluid retention while helping protect the heart. Its most important safety concern is hyperkalemia, or high blood potassium.

• Uses: hypertension and selected heart-failure treatment.
• Class: aldosterone antagonist.
• Monitoring: potassium and kidney function before and during treatment.
• Safety: do not start potassium supplements or salt substitutes without clinical advice.

How does Inspra work?

Aldosterone can promote sodium retention, fluid accumulation, and harmful cardiovascular remodeling. Eplerenone selectively blocks the mineralocorticoid receptor, allowing more sodium and water to be excreted. It may also increase potassium, so the clinician uses laboratory testing to assess whether the dose remains safe. It is not a substitute for prescribed heart-failure medicines, sodium reduction, or home blood-pressure monitoring.

How should Inspra be taken?

Take exactly as prescribed, with or without food, at the same time each day. The dose depends on the condition, kidney function, potassium level, and other medicines. Confirm the strength before you buy Inspra 25 mg or buy Inspra 50 mg. If a dose is missed, take it when remembered unless it is close to the next dose; never double doses.

What side effects require attention?

Dizziness, fatigue, diarrhea, cough, and increased potassium can occur. Severe hyperkalemia may cause muscle weakness, tingling, slow or irregular heartbeat, fainting, or shortness of breath and requires urgent care. Keep blood-test appointments, particularly after starting treatment, changing the dose, or adding a medicine that affects the kidneys or potassium.

What interactions and contraindications apply?

Do not use with clinically significant hyperkalemia, severe kidney impairment, or a known eplerenone allergy. Strong CYP3A4 inhibitors including ketoconazole, itraconazole, clarithromycin, ritonavir, and nefazodone may be contraindicated. Discuss ACE inhibitors, ARBs, potassium-sparing diuretics, NSAIDs, trimethoprim, lithium, potassium supplements, and salt substitutes. Pregnancy and breastfeeding require individual medical advice.

What should I monitor at home?

Check blood pressure as advised and maintain the heart-failure plan from the care team. Call the clinician for vomiting, diarrhea, reduced urination, or other illness that may affect hydration and kidney function. Avoid abrupt diet changes or low-sodium salt substitutes without confirming their potassium content. Report sudden weight gain, swelling, chest symptoms, or worsening shortness of breath promptly.

What should I know before ordering Inspra?

Use a current prescription and authorized pharmacy before you buy Inspra. Inspra price varies by strength, quantity, coverage, and dispensing rules. Comparing Inspra price should not replace kidney and potassium monitoring. A low Inspra price is not evidence of appropriate handling; do not decide to buy Inspra from an unverified seller.

Store tablets in their original package away from moisture and children. This page provides general education, not individual cardiovascular care.