ACE Inhibitors and ARBs: Your Guide to Blood Pressure Medications

What Are ACE Inhibitors and ARBs?

ACE inhibitors and ARBs are two closely related classes of medication used to treat high blood pressure (hypertension), heart failure, and kidney disease. Nearly one in four Canadian adults has high blood pressure, making these among the most commonly dispensed prescriptions in the country.

ACE inhibitors (angiotensin-converting enzyme inhibitors) work by blocking the enzyme that produces angiotensin II, a chemical that narrows blood vessels. Common examples include ramipril, lisinopril, and enalapril. A well-known side effect is a persistent dry cough, which affects roughly 10-15% of patients.

ARBs (angiotensin receptor blockers) take a different approach — they block angiotensin II from binding to its receptor on blood vessel walls. Popular ARBs include losartan, valsartan, candesartan, and telmisartan. ARBs are often prescribed when a patient cannot tolerate the cough caused by ACE inhibitors.

How Effective Are They?

Both classes typically reduce blood pressure by 10-15 mmHg systolic and provide significant protection against stroke, heart attack, and kidney damage over the long term.

Brand vs Generic: Names and Pricing

The good news is that virtually all ACE inhibitors and most ARBs are now available as generics in Canada.

Ramipril is the most commonly prescribed ACE inhibitor in Canada, largely because of strong clinical trial evidence and very low generic pricing. At some pharmacies, a month's supply of generic ramipril costs less than $6.

Tips for Saving Money on Blood Pressure Medications

• Go generic without hesitation. Generic ACE inhibitors and ARBs are chemically identical to their brand-name counterparts. The savings are substantial.
• Use TransparentMedz to compare pharmacy prices. Dispensing fees and markups vary widely, so the same generic ramipril prescription could cost $9 at one pharmacy and $22 at another.
• Ask about pill splitting. Some ACE inhibitors come in higher-dose tablets at the same price. Your doctor may prescribe a higher dose to be split, effectively halving your drug cost.
• Fill 90-day supplies to save on dispensing fees — this alone can save $30 to $60 per year.
• Review your drug plan annually. Many employer plans cover blood pressure medications at 80-100%.

Canadian Pharmacare Coverage

Generic ACE inhibitors and ARBs are covered by every provincial drug benefit formulary in Canada. Ontario's ODB, BC PharmaCare, Alberta's non-group coverage, and Quebec's RAMQ all list multiple options. If you qualify for a provincial plan, you will typically pay only a small co-payment for these medications.

Under the proposed national pharmacare framework, blood pressure medications are expected to be among the first classes included, which could eliminate out-of-pocket costs for millions of Canadians.

The Bottom Line

Blood pressure medications are some of the most affordable prescriptions available in Canada, especially in generic form. Before your next refill, compare prices on TransparentMedz to ensure you are not overpaying for a medication that should cost very little.