Drug Class: Calcium Channel Blocker + ARB Combination | Form: Oral Tablet | Prescription Status: Prescription Only (Rx) — DRAP Registered
What is Exval-A 10/160mg Tablet?
Exval-A 10/160mg combines Amlodipine 10mg and Valsartan 160mg — two complementary blood pressure medicines working through entirely different mechanisms in a single tablet. Amlodipine relaxes blood vessels by blocking calcium entry into arterial smooth muscle cells, while Valsartan blocks the angiotensin II receptor — preventing a key hormone from constricting blood vessels and retaining sodium. Together they lower blood pressure more effectively than either medicine alone, prescribed when a single blood pressure medicine no longer provides adequate control or when two agents are needed from the start due to significantly elevated blood pressure.
What is Exval-A 10/160mg Used For?
- Hypertension (high blood pressure) — when single-agent therapy is insufficient to achieve blood pressure targets (ہائی بلڈ پریشر)
- Step-up combination therapy — for patients already on Amlodipine or Valsartan alone needing additional blood pressure control
- Cardiovascular risk reduction — sustained blood pressure control reduces the risk of heart attack, stroke, and kidney damage
- Simplified treatment — replacing two separate blood pressure tablets with one convenient combination
How Does Exval-A 10/160mg Work?
Amlodipine 10mg — Calcium Channel Blocker: Blocks L-type calcium channels in the walls of peripheral arteries and coronary arteries — preventing calcium from entering smooth muscle cells. Without calcium, the muscle cannot contract, causing arteries to relax and widen. This reduces peripheral vascular resistance — directly lowering blood pressure — and improves blood flow to the heart. Amlodipine's long half-life provides smooth, sustained 24-hour blood pressure control with once-daily dosing.
Valsartan 160mg — Angiotensin II Receptor Blocker (ARB): Blocks AT1 receptors — the target of angiotensin II, one of the body's most potent blood vessel constricting hormones. By preventing angiotensin II from binding, Valsartan stops arterial constriction, reduces aldosterone-mediated sodium and fluid retention, and lowers blood pressure through a completely different pathway from Amlodipine. This neurohormonal blockade also provides kidney and heart-protective benefits beyond simple blood pressure lowering.
Combined Effect: Amlodipine relaxes arterial walls directly while Valsartan blocks the hormonal system that drives constriction — targeting two separate mechanisms simultaneously for significantly stronger blood pressure control than either medicine achieves alone.
Dosage and Administration
⚠️ Take exactly as prescribed. Never stop suddenly — abrupt discontinuation can cause rebound hypertension. Blood pressure must be monitored regularly throughout treatment.
| Indication | Usual Dose | Frequency |
|---|---|---|
| Hypertension (combination therapy) | 1 tablet (10mg/160mg) | Once daily |
- Take once daily at the same time each day — with or without food
- Swallow whole with a full glass of water
- Maintain adequate fluid intake — particularly important during hot weather, exercise, or illness
- Regular blood pressure monitoring and kidney function checks required
Active Ingredients
| Ingredient | Strength per Tablet |
|---|---|
| Amlodipine | 10mg |
| Valsartan | 160mg |
Who Should NOT Take Exval-A 10/160mg?
- Known allergy to Amlodipine, Valsartan, or any calcium channel blocker or ARB
- Pregnancy — ARBs are absolutely contraindicated in pregnancy; can cause serious foetal harm
- Severe liver disease — Valsartan is primarily hepatically metabolised
- Severe aortic stenosis — Amlodipine requires caution
- Concomitant use with Aliskiren in diabetic patients — contraindicated combination
Consult your doctor before use if you have: kidney or liver disease, heart failure, low blood pressure, low sodium or potassium levels, or are taking ACE inhibitors, potassium-sparing diuretics, or potassium supplements.
Side Effects
Common:
- Ankle or leg swelling (oedema) — common Amlodipine class effect due to arterial dilation (پاؤں کی سوجن)
- Dizziness or lightheadedness — particularly on standing up quickly (postural hypotension)
- Flushing or sensation of warmth — Amlodipine-related arterial dilation effect
- Headache — particularly during initial treatment
- Fatigue or mild nausea
Serious — seek medical attention immediately:
- Severe hypotension — sudden fainting or collapse, particularly with dehydration or high doses (یہ طبی ہنگامی صورتحال ہے)
- Elevated potassium (hyperkalaemia) — muscle weakness, irregular heartbeat — Valsartan ARB class risk
- Kidney function deterioration — reduced urination, ankle swelling, unexplained weight gain
- Severe allergic reaction — facial swelling, difficulty breathing, widespread rash
- Worsening angina or heart attack — rare paradoxical effect at start of Amlodipine in severe coronary disease
Drug Interactions
| Medicine | Interaction |
|---|---|
| ACE inhibitors (e.g., Enalapril, Ramipril) | Double renin-angiotensin blockade — increased hypotension and kidney failure risk; avoid combination |
| Aliskiren | Contraindicated in diabetic patients — increased hypotension, kidney failure, and hyperkalaemia risk |
| Potassium-sparing diuretics / Potassium supplements | Valsartan increases potassium — combined use raises hyperkalaemia risk significantly |
| NSAIDs (e.g., Ibuprofen, Diclofenac) | Reduce Valsartan's blood pressure lowering effect and increase kidney damage risk |
| Cyclosporine / Tacrolimus | Increases Valsartan blood levels — kidney toxicity monitoring required |
| Simvastatin | Amlodipine increases Simvastatin exposure — muscle damage risk; dose cap applies |
| Alcohol (شراب) | Worsens blood pressure lowering and dizziness — avoid excessive alcohol |
Storage Instructions
- Store below 25°C away from moisture and direct sunlight
- Keep in original packaging until use
- Keep out of reach of children (بچوں کی پہنچ سے دور رکھیں)
- Do not use after expiry date on the pack
Frequently Asked Questions (FAQs)
Q: Why has my doctor prescribed a combination tablet instead of two separate medicines? A fixed-dose combination simplifies treatment, improves daily adherence, and delivers complementary blood pressure lowering through two different mechanisms — achieving better control than escalating either single medicine to its maximum dose.
Q: Is ankle swelling from Exval-A dangerous? Mild ankle swelling is a common Amlodipine effect caused by arterial dilation — it is not dangerous but should be reported to your doctor if it worsens, as dose adjustment or switching may improve it.
Q: Can I take Exval-A during pregnancy? No — Valsartan is absolutely contraindicated in pregnancy as it can cause serious foetal kidney damage and death. Use reliable contraception and inform your doctor immediately if pregnancy occurs during treatment.
Q: Can I stop Exval-A if my blood pressure readings are normal? No — normal readings mean the medicine is working. Stopping suddenly can cause rebound hypertension and increase the risk of heart attack or stroke. Only stop under your doctor's supervision.
⚕️ Medical Disclaimer: This description is for general information only and does not replace professional medical advice. Always consult your doctor or pharmacist before starting or stopping this medicine. Never stop blood pressure treatment without medical guidance.
DRAP Registered | Prescription Required (Rx) | Take once daily — never stop without doctor's advice — avoid in pregnancy — monitor blood pressure regularly