Eprosartan, marketed under the brand name Teveten, is a medication belonging to the class of angiotensin II receptor blockers (ARBs). It is primarily prescribed to treat hypertension (high blood pressure) by relaxing blood vessels, allowing blood to flow more smoothly and reducing the workload on the heart.
About eprosartan tablets
Eprosartan tablets are available in strengths such as 400 mg and 600 mg, typically film-coated for easier swallowing. This oral medication is used alone or combined with other antihypertensives like diuretics to manage mild-to-moderate high blood pressure effectively.
- Form: Film-coated tablets.
- Available doses: 400 mg, 600 mg, and sometimes 800 mg upon dose adjustment.
- Packaging: Usually in blister packs or bottles, stored at room temperature away from moisture.
The tablets should be taken consistently, with or without food, to maintain steady blood levels. Full therapeutic effects are often observed within 2-3 weeks of starting treatment.
Key facts about eprosartan
- Drug type: Angiotensin II receptor blocker (ARB).
- Used for: Hypertension; also investigated for diabetic nephropathy and congestive heart failure in intolerant patients.
- Onset of action: Blood pressure reductions visible in 2-3 weeks; peak effects at 3 weeks.
- Duration: Once-daily dosing provides 24-hour control without rebound hypertension upon discontinuation.
- Common brand: Teveten (or Teveten HCT with hydrochlorothiazide).
- Is it a steroid? No, it is not a steroid; it targets the renin-angiotensin system.
- Controlled substance? No.
About high blood pressure
High blood pressure, or hypertension, affects millions worldwide and often presents no symptoms, earning it the nickname “silent killer.” Untreated, it increases risks of stroke, heart attack, heart failure, kidney disease, and vascular dementia.
Symptoms of high blood pressure
Most individuals experience no symptoms, but severe cases may include:
- Headaches.
- Blurred vision.
- Chest pain.
- Dizziness or shortness of breath.
Routine blood pressure checks are essential, as normal readings are below 120/80 mmHg.
How to measure blood pressure
- Rest quietly for 5 minutes.
- Sit with back supported, feet flat.
- Place cuff on bare upper arm at heart level.
- Avoid caffeine, exercise, or smoking 30 minutes prior.
- Take 2-3 readings, 1 minute apart, and average them.
Blood pressure categories:
| Category | Systolic (mmHg) | Diastolic (mmHg) |
|---|---|---|
| Normal | <120 | <80 |
| Elevated | 120-129 | <80 |
| Stage 1 Hypertension | 130-139 | 80-89 |
| Stage 2 Hypertension | ≥140 | ≥90 |
Common causes of high blood pressure
- Age, genetics, obesity, high salt intake, lack of exercise, smoking, excessive alcohol, stress.
- Secondary causes: Kidney disease, sleep apnea, thyroid issues.
How eprosartan works
Eprosartan selectively blocks the AT1 receptor, preventing angiotensin II—a potent vasoconstrictor—from binding. Angiotensin II normally tightens blood vessels, stimulates aldosterone release (leading to sodium retention), and promotes cardiac/renal effects. By inhibiting these, eprosartan causes vasodilation, reduces aldosterone secretion, and lowers blood pressure without affecting the AT2 receptor.
Pharmacodynamics show complete inhibition of angiotensin II effects at doses ≥350 mg, with no partial agonist activity. It increases plasma renin activity but does not alter heart rate, lipids, or uric acid excretion.
Dosage
The starting dose is 600 mg once daily, with or without food. If blood pressure remains elevated after 2-3 weeks, increase to 800 mg daily or add a diuretic. Maximum dose in renal impairment: 600 mg daily. No adjustment needed for mild impairment.
| Patient Group | Starting Dose | Max Dose |
|---|---|---|
| Adults | 600 mg once daily | 800 mg once daily |
| Renal Impairment (moderate/severe) | 600 mg once daily | 600 mg daily |
| Hepatic Impairment | No adjustment | Monitor closely |
Establish a routine: Take at the same time daily. Do not double doses if missed; skip and resume schedule.
How and when to take eprosartan
- Swallow whole with water; no crushing/chewing.
- With/without food—consistency matters.
- Missed dose: Take as soon as remembered unless near next dose.
- Overdose: Seek emergency help; symptoms include hypotension, dizziness.
Using eprosartan with other medicines and herbal supplements
Eprosartan interacts with:
- Potassium-sparing diuretics (e.g., spironolactone): Risk of hyperkalemia.
- ACE inhibitors (e.g., enalapril): Avoid dual blockade.
- Other ARBs (e.g., losartan): Not recommended.
- NSAIDs (e.g., ibuprofen): Reduced antihypertensive effect; renal risk.
- Lithium: Increased levels.
- Diuretics/Calcium channel blockers: Safe combinations.
Inform your doctor of all medications. No significant CYP interactions (e.g., with ketoconazole).
Common questions about eprosartan
How long does eprosartan take to work?
Reductions in 2-3 weeks; full effect by 3 weeks.
Can I take paracetamol while on eprosartan?
Yes, generally safe.
Can I take eprosartan on an empty stomach?
Yes, absorption unaffected.
Can I take eprosartan before bed?
Yes, timing flexible.
Is eprosartan safe in pregnancy?
No—risk of fetal harm/death in 2nd/3rd trimesters. Use effective contraception.
Is eprosartan a diuretic?
No, but combinable with diuretics.
Does eprosartan affect heart rate?
No significant change.
Does eprosartan cause weight gain?
Not typically; monitor if concerned.
Can I drink alcohol with eprosartan?
Limit alcohol; it may enhance hypotension.
Is eprosartan a blood thinner?
No, it relaxes vessels.
Side effects of eprosartan
Serious side effects (rare):
- Allergic reactions: Swelling, rash, breathing difficulty.
- High potassium: Muscle weakness, irregular heartbeat.
- Kidney issues: Reduced urine, swelling.
- Liver problems: Jaundice, fatigue.
Common side effects:
| System | Effects |
|---|---|
| General | Headache, dizziness, fatigue, back pain. |
| Respiratory | Cough (less than ACEIs), upper respiratory infection. |
| Gastrointestinal | Nausea, diarrhea. |
| Cardiovascular | Hypotension (orthostatic). |
Report persistent issues to your doctor.
Pregnancy and breastfeeding
Pregnancy: Contraindicated in 2nd/3rd trimesters—causes fetal renal impairment, oligohydramnios, death. Discontinue if pregnancy detected.
Breastfeeding: Unknown if excreted in milk; caution advised—weigh risks/benefits.
Precautions and warnings
- Renal impairment: Dose cap at 600 mg; monitor creatinine.
- Hyperkalemia: Avoid high-potassium diet/supplements.
- Aortic stenosis/heart failure: Use cautiously.
- Dehydration: Correct before starting.
- Black patients: May respond less; combine with diuretic.
Monitoring and follow-up
Regular blood pressure, kidney function (creatinine, BUN), electrolytes checks. Annual liver tests if at risk.
Stopping eprosartan
No rapid rebound; taper under guidance to avoid BP rise.
Alternatives to eprosartan
| Drug Class | Examples |
|---|---|
| Other ARBs | Losartan, valsartan, irbesartan. |
| ACE Inhibitors | Ramipril, lisinopril. |
| Calcium Channel Blockers | Amlodipine. |
| Diuretics | Hydrochlorothiazide. |
| Beta-blockers | Metoprolol. |
Frequently Asked Questions (FAQs)
What is eprosartan used for?
Primarily for hypertension; also diabetic nephropathy and heart failure in select cases.
How should I take eprosartan?
600 mg once daily, with/without food.
What are the side effects?
Dizziness, headache; serious: hyperkalemia, renal issues.
Is eprosartan safe in pregnancy?
No, especially after first trimester.
Can I stop taking it suddenly?
Consult doctor; no rebound but monitor BP.
References
- Teveten Factsheet, Uses & Common Side Effects — Rexall. 2023. https://www.rexall.ca/article/drug/view/id/1915
- TEVETEN (eprosartan mesylate) Label — FDA. 2014-07-31. https://www.accessdata.fda.gov/drugsatfda_docs/label/2014/020738s029lbl.pdf
- Eprosartan: Uses, Interactions, Mechanism of Action — DrugBank. 2024. https://go.drugbank.com/drugs/DB00876
- Eprosartan: MedlinePlus Drug Information — NIH MedlinePlus. 2023. https://medlineplus.gov/druginfo/meds/a601237.html
- Eprosartan – LiverTox — NCBI/NIH. 2023-10-02. https://www.ncbi.nlm.nih.gov/books/NBK548507/
- Teveten 600 mg Film-Coated Tablets — HPRA. 2022. https://assets.hpra.ie/products/Human/33363/c083940b-91f7-44a8-ab92-2e517354de57.pdf
