A Practitioner’s Guide to Requesting Compounded Medicines

Personalised medicine is moving from a niche concept to a standard expectation in modern healthcare. As patients become more informed and clinical needs become more complex, the “one-size-fits-all” approach of mass-manufactured pharmaceuticals often falls short. For general practitioners, specialists, veterinarians, and dentists, knowing how to utilise a compounding pharmacy effectively is a powerful addition to your clinical toolkit.

However, ordering a custom formulation is not the same as prescribing a standard PBS listed drug. It requires specific details to ensure the final product is safe, effective, and compliant with Australian standards.

At Compounding Chemist, we have been supporting prescribers and patients since 1998. This guide provides a clear prescriber compounding guide to help you navigate the process, minimise administrative delays, and improve patient outcomes through precision medication.

Why Prescribers Choose Compounded Medicines

Compounding is not intended to replace commercially available medications. Instead, it serves as a vital bridge when TGA-approved options are unsuitable or unavailable. Clinicians turn to compounding for several practical reasons:

• Non-Standard Strengths: Standard manufacturing produces fixed dosages. Compounding allows for precise titration, such as tapering doses for mental health medications or creating micro-doses for paediatric patients.
• Ingredient Sensitivities: Many commercial tablets contain fillers like lactose, gluten, dyes, or specific preservatives. We can formulate medications free from these excipients to prevent adverse reactions in sensitive patients.
• Alternative Dosage Formats: A patient with dysphagia (difficulty swallowing) may not be able to take a large tablet. We can convert that medication into a liquid suspension, a transdermal gel, or a troche.
• Discontinued or Shortage Medications: When a commercial manufacturer halts production due to profitability or supply chain issues, a compounding pharmacy can often source the raw active pharmaceutical ingredient (API) to ensure continuity of care.

Essential Information Required in a Compounded Script

To prevent delays in treatment, a prescription for a compounded medicine requires more detail than a standard script. Omissions are the most common reason for pharmacist callbacks.

Here is a breakdown of the essential elements required for a valid compounded script requirements:

Patient Details

Legal requirements mandate clear identification. The script must include the patient’s full name, current address, and date of birth. For Veterinary Compounding, the script must also include the animal’s name, species (e.g., Canine, Feline), and the owner’s full details.

Medication Details

This is where precision is paramount. Unlike a brand-name drug that implies a specific strength and form, a compounded script must explicitly state:

• Active Ingredient: The generic name of the drug.
• Strength: The exact amount per dose (e.g., 50mg) or concentration (e.g., 50mg/mL).
• Formulation Type: The physical form (e.g., capsule, cream, suspension).
• Quantity: The total amount to be dispensed (e.g., 100 capsules or 50mL).
• Directions: Clear, unambiguous dosing instructions.

Additional Notes

Context helps the pharmacist prepare the safest formulation. Please include:

• Allergies: Highlight any known sensitivities to fillers or preservatives.
• Flavour Preferences: Crucial for children and animals to ensure compliance.
• BHRT specifics: For Hormone Replacement Therapy, specify the base if you have a clinical preference (e.g., Versabase, Lipoderm).

Prescriber Details

To be legally valid, the script must include your provider number (or prescriber number), practice address, contact phone number, original signature, and the date of prescribing.

Choosing the Right Medication Format

Selecting the correct delivery system is just as important as selecting the active ingredient. The format dictates absorption, ease of use, and stability.

• Capsules: The most common format for oral delivery. They offer high precision and stability. We can use cellulose (veggie) caps to avoid gelatin if requested.
• Oral Liquids/Suspensions: Ideal for Paediatric Compounding or patients who cannot swallow pills. This format allows for easy dose adjustments (e.g., increasing dose by 0.1mL).
• Transdermal Creams and Gels: These allow medication to be absorbed through the skin, bypassing the digestive system and first-pass metabolism. This is frequently used in hormone therapy and pain management.
• Troches: Small lozenges placed under the tongue or between the gum and cheek. They dissolve to allow rapid absorption directly into the bloodstream through the oral mucosa.
• Topicals: Used for localised treatment in Dermatology Compounding, such as treating psoriasis, acne, or scarring without systemic side effects.

Common Script Errors and How to Avoid Them

Even experienced practitioners can occasionally miss a detail that prevents a script from being filled immediately. By being aware of these common pitfalls, you can ensure a smoother compounding pharmacy workflow:

1. Missing Strength or Concentration: Writing “Progesterone Cream” is insufficient. We need to know the percentage (e.g., “Progesterone 5% Cream”) or the milligram strength per dosage unit (e.g., “Progesterone 50mg/mL”).
2. Ambiguous Quantity: For creams, specifying “1 tube” is unclear as dispensers vary in size. Please prescribe by weight or volume (e.g., “50g” or “100mL”).
3. Vague Directions: “Use as directed” does not provide enough information for the pharmacist to conduct a safety check on the dosage. Specific directions (e.g., “Apply 1mL to inner wrist once daily”) are required.
4. Incompatible Forms: Prescribing a high dose of a drug to be put into a very small volume of liquid may not be physically possible due to solubility limits.
5. Illegibility: While electronic prescribing is reducing this issue, handwritten scripts must be legible to prevent errors.

How Pharmacies Clarify Prescriptions

If you receive a call from one of our pharmacists, please understand that this is a critical safety step. Because compounded medicines are made from scratch, there is no product information leaflet or standardisation to fall back on.

If a script lacks clarity—for example, if a strength looks unusually high or the vehicle isn’t specified—we are legally and ethically required to pause the process and confirm your intent. This practitioner compounding guidance ensures that the patient receives exactly what you intended, protecting both your practice and patient safety.

We prioritise these clarifications to minimise any delay in the patient starting their therapy.

Supporting Patients Using Compounded Medicines

Patients new to compounding often have questions. Providing them with a few key pieces of information during the consultation can improve adherence and satisfaction.

• Preparation Time: Unlike standard pharmacies where pills are picked off a shelf, compounded medicines take time to make. Please advise patients that it may take 24 to 48 hours for their medication to be prepared.
• Expiry Dates: Compounded products typically have shorter expiry dates than mass-produced drugs because they do not contain the same heavy-duty preservatives. Patients should be reminded to check the label and order repeats in a timely manner.
• Storage: Some formulations, particularly certain antibiotic liquids or eyedrops, may require refrigeration.
• Cost: Compounded medications are generally not covered by the PBS, though some private health funds offers rebates.

Practitioner & Compounding Pharmacist Collaboration

The best outcomes in Thyroid Compounding, Dental Compounding, and other specialty areas come from a collaborative approach.

We encourage prescribers to treat the compounding pharmacist as a resource. If you have a patient with a complex clinical need—such as a cat that refuses tablets or a child who needs a specific mineral supplement—call us before writing the script.

We can advise on the stability of active ingredients, the best flavour combinations to mask bitterness, and the most appropriate base for absorption. This feedback loop ensures the first script you write is the right one.

Conclusion

Requesting compounded medicines does not need to be a complex administrative burden. By focusing on clear, specific instructions and understanding the variables of dosage forms, you can open up a wider range of therapeutic options for your patients.

At Compounding Chemist, we view ourselves as partners in your patient’s care. Whether you need advice on a formulation or clarification on a dosage, we are here to support your clinical decisions.

If you have questions about a specific formulation or needPrescriber Support, please don’t hesitate toContact our team at Lindfield.