What Is Compounding Medication?

If you’ve ever been told that a medication you need is discontinued, that you’re allergic to an inactive ingredient in a commercial drug, or that your child can’t swallow a standard pill, you may benefit from compounding medication. Pharmaceutical compounding is a cornerstone of personalized medicine, and it’s available right here in Toronto at licensed compounding pharmacies like Cloud Pharmacy.

In this guide, we’ll explain what compounding medication is, who it’s for, and how you can access it in Toronto.

What Is Pharmaceutical Compounding?

Pharmaceutical compounding is the process of preparing customized medications tailored to a patient’s specific needs. A licensed pharmacist combines, mixes, or alters pharmaceutical ingredients to create a medication that is not commercially available in the exact form, strength, or combination a patient requires.

Compounding has been a fundamental part of pharmacy practice for centuries. While mass-manufactured medications serve the majority of patients, compounding fills the gaps where standard options fall short. In Ontario, compounding pharmacies are regulated by the Ontario College of Pharmacists (OCP) and must adhere to strict quality assurance standards outlined in the NAPRA Model Standards for Pharmacy Compounding of Non-Hazardous Sterile Preparations and Non-Sterile Preparations.

Common Reasons Patients Need Compounded Medications

There are many clinical situations where compounding provides an essential solution:

• Allergies or sensitivities to inactive ingredients: Commercial medications often contain fillers, dyes, preservatives, or lactose that some patients cannot tolerate. A compounding pharmacist can prepare the same active ingredient without the offending additive.
• Pediatric dosing: Many medications are only manufactured in adult strengths. Compounding allows pharmacists to prepare child-appropriate doses in forms that are easier for children to take, such as flavoured liquids or lollipops.
• Discontinued or back-ordered medications: Drug shortages are an ongoing challenge in Canada. When a commercially manufactured product becomes unavailable, a compounding pharmacy may be able to prepare an equivalent formulation.
• Alternate delivery forms: Some patients have difficulty swallowing tablets or capsules. Compounding enables the medication to be prepared as a topical cream, transdermal gel, sublingual troche, or suppository.
• Combination medications: Patients taking multiple medications may benefit from having two or more active ingredients combined into a single preparation, simplifying their medication routine.
• Hospice and palliative care: Patients in palliative settings often require unique dosage forms and concentrations that are not commercially available.

Types of Compounded Preparations

Depending on the clinical need, a compounding pharmacy can prepare medications in a variety of dosage forms:

• Capsules: Custom-strength capsules with specific active ingredients and no unwanted fillers.
• Topical creams and ointments: Commonly used for pain management, dermatological conditions, and hormone therapy.
• Oral suspensions and solutions: Flavoured liquid medications, often prepared for pediatric or geriatric patients who have difficulty swallowing solid forms.
• Troches and lozenges: Dissolve slowly in the mouth for sublingual or buccal absorption.
• Suppositories: Used when oral administration is not feasible or when localized delivery is preferred.
• Transdermal gels: Applied to the skin for systemic absorption, commonly used in hormone replacement therapy.

How Compounding Works at a Licensed Ontario Pharmacy

The compounding process at a licensed Ontario pharmacy follows a structured workflow to maintain quality and safety:

1. Prescription review: Your healthcare provider writes a prescription specifying the compounded medication. The pharmacist reviews the prescription for clinical appropriateness, including dose, route of administration, and potential interactions.
2. Ingredient sourcing: Pharmaceutical-grade raw ingredients are sourced from Health Canada-approved suppliers with valid Certificates of Analysis.
3. Preparation: The pharmacist or pharmacy technician prepares the medication in a controlled environment, following standardized formulas and documented procedures.
4. Quality checks: Each compounded preparation undergoes verification, which may include weight checks, pH testing, and visual inspection, depending on the dosage form.
5. Dispensing and counselling: The final product is labelled with complete dosing instructions, beyond-use dating, and storage requirements. The pharmacist provides counselling on proper use.

Is Compounding Covered by Insurance in Ontario?

Coverage for compounded medications in Ontario depends on your insurance plan:

• Private insurance: Many private drug plans cover compounded medications, particularly when the prescriber indicates medical necessity. Coverage may depend on whether the individual active ingredients are listed on the plan’s formulary.
• Ontario Drug Benefit (ODB): The ODB program, which covers eligible Ontario residents including those 65 and older, those receiving social assistance, and those enrolled in the Trillium Drug Program, may cover certain compounded preparations. Eligibility depends on the specific ingredients and the patient’s coverage category.
• Out-of-pocket: If your compounded medication is not covered by insurance, your pharmacy can provide a cost estimate before preparation.

We recommend contacting your insurance provider or speaking with our pharmacy team to verify coverage before having a compounded prescription filled.