Nioben (Telmisartan, Amlodipine Besilate)

Nioben combines telmisartan and amlodipine besilate to manage hypertension, a condition involving elevated arterial pressure.

• Essential hypertension: lowers blood pressure in patients with primary hypertension.
• Stage 2 hypertension: provides additional BP reduction when single‑agent therapy is inadequate.
• Hypertension with cardiovascular risk factors: helps achieve target BP in patients who also have diabetes or dyslipidemia.

• Telmisartan selectively blocks the angiotensin II type 1 (AT1) receptor, preventing vasoconstriction and aldosterone release, while amlodipine besilate inhibits L‑type calcium channels in vascular smooth muscle, producing arterial vasodilation. The combined effect results in reduced peripheral resistance and lower systemic blood pressure.

Common Side Effects

• Dizziness: sensation of light‑headedness, especially after standing.
• Headache: mild to moderate pain often reported during initiation.
• Peripheral edema: swelling of ankles or feet due to fluid accumulation.
• Flushing: transient warmth and redness of the skin.
• Fatigue: feeling unusually tired or weak.
• Palpitations: awareness of heartbeats.

Serious or Rare Side Effects

• Angioedema: rapid swelling of face, lips, tongue, or throat requiring emergency care.
• Severe hypotension: markedly low blood pressure causing fainting or shock.
• Hepatic dysfunction: abnormal liver enzymes or jaundice.
• Myocardial infarction: chest pain indicative of a heart attack.
• Arrhythmia: irregular heart rhythm that may be life‑threatening.
• Severe allergic reaction: rash, itching, or difficulty breathing.

Before initiating therapy, consider the following precautions:

• Renal impairment: monitor kidney function and serum creatinine.
• Hepatic impairment: use with caution; assess liver enzymes periodically.
• Electrolyte imbalance: check potassium levels, especially if used with diuretics.
• Pregnancy: avoid unless clearly necessary, as safety data are limited.
• Concomitant strong CYP3A4 inhibitors: may increase amlodipine exposure, requiring dose review.
• Store at ambient temperature: keep in the original pack, protect from moisture and direct sunlight.

Nioben may interact with several medicines; review the following categories:

Major Interactions (Avoid)

• Potassium‑sparing diuretics: increased risk of hyperkalemia.
• ACE inhibitors or other ARBs: additive renal effects and possible hypotension.
• Strong CYP3A4 inhibitors (e.g., clarithromycin, itraconazole): elevate amlodipine plasma levels.

Moderate Interactions (Monitor Closely)

• NSAIDs: may blunt antihypertensive response.
• Thiazide diuretics: enhanced hypotensive effect.
• Lithium: potential increase in lithium concentrations.
• Beta‑blockers: additive blood pressure lowering; monitor heart rate.