Understanding Your Prescriptions: Labels, Dosages, and What to Ask Your Pharmacist

Every time you pick up a prescription, you receive a label that contains critical information about your medication. Yet for many patients, that label is a blur of medical jargon and small print. Understanding it properly can make a real difference to your health — and catching a mistake early can prevent serious harm.

Here's a plain-language breakdown of what you'll find on a typical Ontario prescription label, and the questions you should always feel comfortable asking us.

Anatomy of a Prescription Label

1. Drug Name (Brand vs. Generic)

Your label will show the drug's name — sometimes the brand name (e.g., Lipitor), sometimes the generic (e.g., atorvastatin), and sometimes both. In Ontario, pharmacists are generally permitted to dispense a generic equivalent unless the prescriber has specifically indicated "no substitution." Generics contain the same active ingredient at the same dose and work the same way — but they are often significantly less expensive.

If you receive a generic and you're unsure whether it's right for you, just ask us. We're happy to explain.

2. Dosage and Strength

This tells you how much of the active ingredient is in each pill, capsule, or dose. For example, "metformin 500 mg" means each tablet contains 500 milligrams of metformin. The number of tablets you take per dose is listed separately in the directions.

3. Directions for Use

This is the most important section. It will tell you how many doses to take, how often, and for how long. Pay close attention to phrases like:

• "Take with food" — some medications absorb better or cause less stomach irritation when taken with a meal.
• "Take on an empty stomach" — others are absorbed more effectively without food (e.g., certain thyroid medications).
• "Do not crush or chew" — extended-release or enteric-coated tablets must be swallowed whole to work correctly.
• "Take at the same time each day" — consistency matters for medications like blood thinners or hormones.

4. Refills Remaining

Ontario prescriptions often allow a set number of refills. When you're running low, it's a good idea to request your refill a few days before you run out — especially for medications that shouldn't be stopped abruptly (like blood pressure pills or antidepressants). You can request refills online at keatingspharmacy.erefills.ca or by calling us directly.

5. Prescriber and Dispensing Information

The label includes your doctor's name, the dispensing pharmacist, the date filled, and a prescription number. Keep this for your records — it's useful if you need to reorder or if there's ever a question about which medication you were given.

Medication Storage: Getting It Right

Improper storage can affect how well a medication works. General rules to follow:

• Room temperature means between 15°C and 25°C — not on a sunny windowsill or in a steamy bathroom medicine cabinet.
• Refrigerated medications (like some insulins and liquid antibiotics) need to stay between 2°C and 8°C. Do not freeze them unless specifically instructed.
• Keep all medications away from children. Child-resistant caps are helpful, but not foolproof.
• Check expiry dates. Expired medications may be less effective or, in some cases, harmful.

Drug Interactions: What You Should Know

A drug interaction occurs when one medication affects how another works in your body. This can happen with prescription medications, over-the-counter products, natural health products, and even certain foods (grapefruit is a well-known example that interacts with many common drugs).

This is one of the most important reasons to fill all your prescriptions at the same pharmacy. When you use Keating's as your primary pharmacy, we maintain a complete medication profile for you — which allows us to flag potential interactions before they become a problem.

The Most Important Questions to Ask Us

Every time you pick up a new prescription, we encourage you to ask:

1. What is this medication for? You deserve to understand what you're taking and why.
2. How and when do I take it? Confirm the directions, especially if the label seems unclear.
3. What side effects should I watch for? Knowing what's normal versus what requires a call to your doctor matters.
4. Does this interact with anything I'm already taking? Include vitamins and supplements — these count too.
5. What happens if I miss a dose? The answer varies significantly by medication.
6. Is there a generic available? If cost is a concern, a generic may be a good option.

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We're Here to Help

At Keating's Pharmacy, our pharmacists take time to speak with you — not just hand you a bag. If you ever have concerns about a medication, want a full medication review, or simply need something explained, please ask. It's one of the most important things we do.