Drug Class: Calcium Channel Blocker + ARB + Thiazide Diuretic Triple Combination | Form: Oral Tablet | Prescription Status: Prescription Only (Rx) — DRAP Registered
What is Co-Extor 5/160/12.5mg Tablet? Co-Extor 5/160/12.5mg contains Amlodipine 5mg, Valsartan 160mg, and Hydrochlorothiazide 12.5mg — a triple fixed-dose antihypertensive combination targeting blood pressure through three completely independent and complementary mechanisms simultaneously. This three-in-one approach is specifically designed for patients whose hypertension remains inadequately controlled despite dual combination antihypertensive therapy — delivering superior blood pressure reduction to any two-medicine combination while improving treatment compliance by replacing three separate tablets with a single daily tablet. Clinical evidence consistently demonstrates that combining three antihypertensive classes at moderate individual doses achieves better blood pressure control with fewer side effects than maximising the dose of any single medicine or two-medicine combination — making triple fixed-dose combination therapy the optimal strategy for resistant and difficult-to-control hypertension in clinical practice.
What is Co-Extor 5/160/12.5mg Used For?
- Essential hypertension — inadequately controlled on dual antihypertensive therapy (ہائی بلڈ پریشر جو دو دواؤں سے کنٹرول نہ ہو)
- Resistant hypertension — blood pressure above target despite multiple antihypertensive medicines
- Simplification of complex antihypertensive regimens — replacing three separate tablets with one
- Hypertension with cardiovascular risk — combined three-pathway protection in high-risk patients (دل کے خطرے میں جامع بلڈ پریشر کنٹرول)
- Hypertension with fluid retention — Hydrochlorothiazide component addresses oedematous hypertension (سوجن کے ساتھ ہائی بلڈ پریشر)
- Hypertension with diabetic nephropathy — Valsartan provides additional kidney protection alongside blood pressure control
How Does it Work? All three components target blood pressure through completely different and additive mechanisms. Amlodipine 5mg blocks L-type calcium channels in vascular smooth muscle — causing peripheral arterial dilation and reducing vascular resistance. Valsartan 160mg selectively blocks AT1 angiotensin II receptors — preventing angiotensin II-mediated vasoconstriction, aldosterone secretion, and sodium retention that drives blood pressure elevation. Hydrochlorothiazide 12.5mg inhibits sodium and chloride reabsorption in the distal renal tubule — increasing urinary sodium and water excretion to reduce circulating blood volume and vascular resistance. By simultaneously dilating blood vessels through calcium channel blockade, blocking the renin-angiotensin system through AT1 receptor antagonism, and reducing blood volume through thiazide diuresis — Co-Extor attacks blood pressure from three separate physiological directions producing blood pressure reduction unachievable by any two-medicine combination at equivalent individual doses.
Dosage and Administration
⚠️ Never stop suddenly — abrupt discontinuation causes dangerous rebound hypertension. Takes 2 to 4 weeks for full blood pressure lowering effect. Monitor kidney function, blood electrolytes, and blood potassium regularly. Take in the morning — Hydrochlorothiazide causes daytime diuresis. Can be taken with or without food at the same time each day.
| Indication | Usual Adult Dose | Frequency | Notes |
|---|---|---|---|
| Essential hypertension — step-up from dual therapy | 1 tablet (5/160/12.5mg) | Once daily in morning | Same time each day |
| Resistant hypertension | 1 tablet (5/160/12.5mg) | Once daily in morning | Under cardiologist supervision |
| Regimen simplification | 1 tablet (5/160/12.5mg) | Once daily in morning | Replacing three separate tablets |
Active Ingredients
| Ingredient | Strength |
|---|---|
| Amlodipine | 5mg |
| Valsartan | 160mg |
| Hydrochlorothiazide | 12.5mg |
Who Should NOT Take Co-Extor 5/160/12.5mg?
- Allergy to Amlodipine, Valsartan, Hydrochlorothiazide, sulphonamide-derived medicines, or any component
- Pregnancy — Valsartan strictly contraindicated in all trimesters; causes serious foetal kidney damage and death
- Breastfeeding
- Severe kidney impairment — GFR below 30ml/min; Hydrochlorothiazide ineffective and all components require reassessment
- Severe liver impairment — all three components hepatically metabolised
- Bilateral renal artery stenosis — ARB component contraindicated
- Significant hypokalaemia or hyponatraemia — electrolyte imbalances must be corrected before starting
- Refractory hypercalcaemia — Hydrochlorothiazide raises calcium levels
- Gout — Hydrochlorothiazide raises uric acid levels precipitating acute attacks
- Severe hypotension — systolic blood pressure below 90mmHg
- Hereditary angioedema or prior angioedema with any ARB or ACE inhibitor
- Concurrent use of Aliskiren in patients with diabetes or kidney impairment
- Children under 18 years
Side Effects
Common: Ankle swelling from Amlodipine component (ٹخنوں کی سوجن — عام اور عموماً بے ضرر), increased urination particularly during first days from Hydrochlorothiazide (پیشاب زیادہ آنا), mild dizziness especially on standing (اٹھتے وقت چکر), mild headache, mild fatigue, mild facial flushing from Amlodipine — most side effects are mild and reduce after initial adjustment period.
Serious — Stop and seek emergency help immediately: Angioedema — sudden swelling of face, lips, tongue or throat with breathing difficulty (چہرے اور گلے کی سوجن — فوری ہسپتال جائیں), severely low blood pressure with fainting (بے ہوشی — فوری مدد لیں), significant hypokalaemia — severe muscle weakness and dangerous cardiac arrhythmia from Hydrochlorothiazide potassium loss (پوٹاشیم کی کمی — فوری مدد لیں), dangerous hyperkalaemia — muscle weakness and irregular heartbeat from Valsartan potassium retention (پوٹاشیم کی زیادتی — فوری ڈاکٹر کو بتائیں), worsening kidney function — reduced urination with ankle swelling and weight gain (فوری ڈاکٹر کو بتائیں), severe allergic reaction with widespread rash and difficulty breathing (فوری مدد لیں), acute gout attack — sudden severe joint pain (گنٹھیا کا شدید دورہ), blood glucose elevation — Hydrochlorothiazide impairs glucose tolerance in diabetic patients.
Drug Interactions
| Medicine | Interaction |
|---|---|
| ACE inhibitors (Enalapril, Lisinopril) | Significantly increased hyperkalaemia and acute kidney failure risk from Valsartan — avoid dual RAAS blockade |
| Aliskiren | Contraindicated in diabetes and kidney disease — increased hyperkalaemia and kidney damage from Valsartan component |
| Potassium supplements / Potassium-sparing diuretics | Complex opposing effects — Valsartan retains potassium while Hydrochlorothiazide loses it; monitor potassium closely |
| NSAIDs (Ibuprofen, Diclofenac) | Reduce effectiveness of all three components and increase kidney injury risk |
| Simvastatin at high doses | Amlodipine increases Simvastatin exposure — limit Simvastatin to 20mg daily; myopathy risk |
| Lithium | Hydrochlorothiazide reduces Lithium excretion — significantly increased toxicity risk; Valsartan also alters levels |
| Antidiabetic medicines | Hydrochlorothiazide raises blood glucose — may reduce antidiabetic effectiveness; monitor closely |
| Antihypertensives | Additive blood pressure lowering from all three components — increased hypotension risk |
| Cholestyramine / Colestipol | Reduce Hydrochlorothiazide absorption — take Co-Extor at least 4 hours before these medicines |
| Cyclosporine | Hydrochlorothiazide increases Cyclosporine levels — nephrotoxicity risk; Amlodipine also increases Cyclosporine exposure |
| Alcohol (شراب) | Increases vasodilation and blood pressure lowering from all components — avoid excessive consumption |
Storage: Store below 25°C in a cool, dry place. Protect from moisture and direct sunlight. Keep in original packaging. Keep out of reach of children (بچوں کی پہنچ سے دور رکھیں). Do not use after expiry date.
FAQs
Q: Why does Co-Extor combine three medicines rather than increasing the dose of one or two medicines? Clinical evidence consistently shows that combining three antihypertensive medicines at moderate individual doses achieves significantly better blood pressure control than maximising the dose of one or two medicines — while producing fewer dose-dependent side effects. Each component addresses a different blood pressure mechanism — making their combined effect genuinely additive. The fixed-dose single tablet also dramatically improves compliance, which is the single most important factor in achieving sustained blood pressure targets and long-term cardiovascular protection.
Q: Why must Co-Extor be taken in the morning rather than at bedtime? The Hydrochlorothiazide diuretic component significantly increases urination — taking it in the morning ensures this diuretic activity occurs during waking daytime hours, preventing disruptive and potentially dangerous nighttime urination that impairs sleep and significantly increases fall risk — particularly important for elderly hypertensive patients who are most vulnerable to nighttime falls from bathroom trips.
Q: Can Co-Extor 5/160/12.5mg be taken safely by diabetic hypertensive patients? With important monitoring — Valsartan's AT1 blockade provides beneficial kidney protection in diabetic nephropathy. However Hydrochlorothiazide impairs insulin sensitivity and raises blood glucose — potentially requiring antidiabetic dose adjustment. Blood glucose and kidney function must be monitored more frequently in diabetic patients starting Co-Extor and antidiabetic medicine adjustments made under diabetologist supervision as needed.
Medical Disclaimer: This information is for general awareness only and does not replace medical advice. Always consult a qualified doctor or pharmacist before taking any prescription medicine.