Conditions Guide · Pill4Me Chilliwack
High Blood Pressure
Hypertension affects nearly 1 in 4 Canadian adults — and most don’t know they have it until a routine check. This guide covers amlodipine (Norvasc), one of the most commonly prescribed blood pressure medications, including BC PharmaCare coverage.
What is high blood pressure?
Blood pressure is the force your blood exerts on artery walls as your heart pumps. High blood pressure (hypertension) means this force is consistently too high — causing the heart and arteries to work harder than they should.
Over years, untreated hypertension damages artery walls, accelerates atherosclerosis, and increases the risk of heart attack, stroke, kidney disease, and vision loss. Because it causes no symptoms, it’s often called the “silent killer.”
The good news: hypertension is highly manageable with medication, lifestyle changes, and regular monitoring. Most patients achieve target blood pressure within weeks of starting treatment.
Blood pressure categories
mmHg (systolic / diastolic) — Hypertension Canada guidelines
Pill4Me can check your blood pressure in-store at no charge.
Amlodipine (Norvasc)
A calcium channel blocker widely used as first- or second-line treatment for hypertension and stable angina.
Amlodipine
Norvasc (generic available)
How it works
Blocks calcium from entering smooth muscle cells in artery walls, causing them to relax and widen. This reduces vascular resistance and lowers blood pressure. Also reduces the heart’s workload during angina.
Dosing
- Once daily oral tablet — any time of day
- Starting dose: 5 mg daily
- Maximum dose: 10 mg daily
- Available as 2.5 mg, 5 mg, 10 mg
- Takes 7–14 days for full effect
BC PharmaCare coverage
Generic amlodipine is covered by Fair PharmaCare and Plan C for hypertension and angina — no Special Authority required for most patients. PharmaCare pays the generic price; choose the brand and you pay the difference. Ask Pill4Me to dispense the generic.
Common side effects
- Ankle or foot swelling (edema)
- Flushing or feeling warm
- Headache (usually resolves)
- Palpitations
- Dizziness
When to contact your pharmacist
- Severe or rapidly worsening swelling
- Shortness of breath with swelling
- Chest pain
- Blood pressure too low (dizziness, fainting)
- Severe skin rash
Medication + lifestyle
Amlodipine works best as part of a complete approach to blood pressure management. Hypertension Canada recommends combining medication with sodium reduction (target <2,000 mg/day), regular aerobic exercise (150 min/week), a healthy body weight, moderate alcohol intake, and smoking cessation. Your pharmacist can help you identify which lifestyle changes will have the biggest impact for your situation.
Frequently asked questions
Does BC PharmaCare cover amlodipine (Norvasc) for high blood pressure?
Yes. Generic amlodipine is covered by BC PharmaCare Fair PharmaCare and Plan C (Income Assistance) for the management of hypertension and stable angina. No Special Authority is required in most cases. The brand-name Norvasc costs more — PharmaCare pays at the generic price and you pay the difference if you request the brand. Ask your Pill4Me pharmacist to dispense the generic at no added cost.
How long does it take for amlodipine to lower blood pressure?
Amlodipine begins working within hours of the first dose but reaches its full blood pressure-lowering effect after 7–14 days of regular use. Your prescriber will typically reassess your blood pressure after 4–6 weeks to determine whether the dose needs adjustment. Do not stop taking it because your blood pressure seems normal — the medication is maintaining those normal levels.
What blood pressure reading is considered high?
In Canada, blood pressure is classified as high (hypertension) when systolic pressure is consistently ≥130 mmHg or diastolic ≥80 mmHg, based on Hypertension Canada guidelines. A single elevated reading in a clinic setting is not a diagnosis — your doctor will typically check readings on multiple occasions or have you use home monitoring. Pill4Me can check your blood pressure in-store at no charge.
Can I take amlodipine with grapefruit juice?
Grapefruit and grapefruit juice can increase the concentration of amlodipine in your blood, potentially causing an exaggerated blood pressure drop or increased side effects. It is best to avoid large amounts of grapefruit while taking amlodipine. Oranges and other citrus fruits are fine. If you regularly consume grapefruit, mention this to your pharmacist.
Is ankle swelling from amlodipine dangerous?
Ankle and foot swelling (peripheral edema) is the most common side effect of amlodipine, occurring in up to 10–15% of patients, and is more common at higher doses. It is caused by fluid shifting into the tissue — not a sign of heart failure or kidney disease. It is generally not dangerous but can be uncomfortable. If the swelling is severe, worsening, or accompanied by shortness of breath, contact your pharmacist or physician.
Get your blood pressure medication delivered
Transfer your amlodipine prescription to Pill4Me — free same-day delivery to Chilliwack, Sardis, and Promontory.
This page is for general informational purposes only and does not constitute medical or pharmaceutical advice. Blood pressure targets and treatment thresholds are based on Hypertension Canada guidelines and are subject to revision. BC PharmaCare coverage criteria may change. Consult your pharmacist or physician before starting, stopping, or adjusting any medication.