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Irbesartan/hydrochlorothiazide viatris 300 mg/25 mg generic coaprovel sanofi?

See the DrugPatentWatch profile for Irbesartan

Irbesartan / Hydrochlorothiazide 300 mg / 25 mg
(also sold as the branded product Co‑Prosell® (Sanofi) and as the Viatris generic)

Class Angiotensin‑II receptor blocker (ARB) + thiazide diuretic
Common brand name Co‑Prosell® (Sanofi)
Generic Irbesartan / Hydrochlorothiazide 300 mg / 25 mg (Viatris, other manufacturers)
Form Oral tablet, once daily

What is it used for?

Indication Typical goal
Hypertension Lower and maintain blood pressure
Heart failure (stable) Reduce hospitalizations and improve symptoms
Renal protection in diabetic nephropathy Slow progression of kidney disease
Combination therapy When monotherapy (ARB or diuretic alone) isn’t enough

The drug is usually started at the full 300 mg / 25 mg dose and titrated only if needed (e.g., if blood pressure remains above target).


How does it work?

  1. Irbesartan blocks the AT1 receptor for angiotensin‑II, preventing vasoconstriction, aldosterone release, and sodium/water retention.
  2. Hydrochlorothiazide inhibits the Na⁺/Cl⁻ symporter in the distal tubule, promoting natriuresis and diuresis.
    The combination provides a synergistic antihypertensive effect.

Key safety points

Category Details
Contraindications • Pregnancy (category X) – teratogenic
• Severe renal impairment oruria
• Known hypersensitivity to ARBs or thiazides
Important warnings • Hyperkalemia (especially with other K‑retaining agents)
• Hypotension (especially in volume‑depleted patients)
• Gout or kidney stones (HCTZ)
Drug interactions • Other antihypertensives (ACE inhibitors, ARBs) → additive hypotension
• NSAIDs → reduced diuretic efficacy & possible renal impairment
• Lithium, digoxin → ↑ blood levels
• Potassium‑sparing diuretics, K⁺ supplements, salt substitutes → ↑ K⁺ risk
Monitoring • Blood pressure & pulse 1–2 weeks after start and after dose changes
• Serum creatinine & electrolytes (K⁺, Na⁺, Cl⁻) at baseline, 4–6 weeks, and periodically thereafter
• Urine output in the first week (if at risk of volume depletion)

Common side effects

Symptom Frequency (≈)
Dizziness / light‑headedness 5–10 %
Headache 5 %
Hyperkalemia (serum K⁺ > 5.5 mmol/L) 1–3 %
Hypotension (especially post‑prandial or standing) < 2 %
Hyperglycemia (rare) < 1 %
Gout flare (due to HCTZ) 1–2 %
Rash / pruritus < 1 %
Angioedema Rare (1 / 100,000)

If you notice swelling of the face, lips, tongue, or throat, or severe breathing difficulty, seek emergency care immediately.


Pregnancy / Lactation

  • Pregnancy: Teratogenic; avoid from conception onward.
  • Lactation: Irbesartan and HCTZ are excreted in breast milk; generally contraindicated in nursing mothers.

How to take it

  • Take orally with water once daily, preferably at the same time each day.
  • Do not split or crush the tablet; it is a fixed‑dose combination.
  • If you miss a dose, take it as soon as you remember—skip the next dose. Do not double dose.

When to call your doctor

  • Persistent dizziness or fainting
  • Signs of hyperkalemia (muscle weakness,


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