| Very common (≥ 1 in 10) |
Dizziness / light‑headedness (especially after the first dose) |
5‑10 % |
Sudden drop in blood pressure |
Sit or lie down when you feel woo‑woo. If it persists, let your clinician know. |
|
Headache |
2‑5 % |
Blood‑pressure changes |
Rest, hydration, and over‑the‑counter pain relievers (but check with your doctor). |
|
Fatigue / weakness |
2‑5 % |
Blood‑pressure lowering |
Give yourself time to adjust; most improve after a few days. |
|
Nausea / abdominal discomfort |
1‑3 % |
GI irritation |
Take with food. If it continues, speak to your provider. |
|
Increased potassium (hyper‑kalemia) |
~1 % |
ARBs inhibit potassium excretion |
Monitor blood tests; avoid high‑potassium foods if advised. |
| Occasional (1‑10 % |
Renal function changes (↑creatinine or BUN) |
1‑5 % |
ARBs can reduce renal blood flow in certain people |
Check labs periodically, especially if you have kidney issues. |
|
Cough |
<1 % |
Rare with ARBs (more common with ACE‑i) |
If you develop a dry cough, notify your doctor. |
|
Allergic reactions (rash, itching, swelling) |
<1 % |
Immune reaction |
Seek medical attention if swelling or breathing issues occur. |
| Rare (≤ 1 % |
Angioedema (swelling of lips, tongue, face) |
<0.01 % |
Severe allergic response |
Call emergency services immediately. |
|
Serious liver injury |
Very rare |
Idiosyncratic reaction |
Report jaundice, dark urine, or severe fatigue. |
|
Severe drop in blood pressure (postural hypotension) |
Rare |
Rapid BP drop |
Avoid sudden position changes; adjust dose if needed. |