How to Help Your Patients Find Synarel in Stock: A Provider's Guide

Synarel (nafarelin acetate) is an effective medication for endometriosis and central precocious puberty (CPP) — but it's one of the harder medications to fill at a standard pharmacy. As the prescribing provider, a few proactive steps in your workflow can dramatically reduce the frustration your patients experience when they're sent off with a prescription and can't find it.

This guide covers practical, office-level strategies for streamlining Synarel access for your patients — from identifying the right pharmacies to managing insurance prior authorizations more efficiently.

Why Synarel Access Is a Recurring Problem for Your Patients

Synarel is brand-only — no US generic exists for nafarelin acetate nasal spray. At $3,100–$3,500 per bottle, most community pharmacies don't stock it. Patients often go to their neighborhood pharmacy, are told it's not available, and don't know what to do next. Without guidance from your office, they may experience dangerous treatment gaps — particularly CPP patients who need consistent hormone suppression.

Building a reliable pharmacy referral system into your Synarel prescribing workflow prevents these gaps before they happen.

Step 1: Identify 1–2 Specialty Pharmacies That Reliably Carry Synarel

Call 2–3 specialty pharmacies in your area and ask them directly: "Do you regularly stock Synarel (nafarelin acetate 2 mg/mL nasal solution)?" Most large specialty pharmacy networks — including CVS Specialty, Walgreens Specialty, and Accredo — will be able to answer definitively.

Once you've identified 1–2 reliable pharmacies, add them to your prescribing workflow as the default for Synarel. When you send the prescription, route it directly there rather than leaving it to the patient to find.

Step 2: Submit Prior Authorization at the Time of Prescribing Decision

PA is required by virtually all commercial and Medicaid plans for Synarel. If you wait until the patient arrives at the pharmacy to start the PA process, you're adding days or weeks to their wait. Instead:

Initiate the PA at the same visit you make the prescribing decision

Include all required documentation up front: diagnosis codes, lab values (LH for CPP, confirmed endometriosis for adults), prior medication history for step therapy

For endometriosis: document the prior OC or progestin trial if step therapy is required by the plan

For CPP: include the bone age assessment, pubertal hormone levels, and specialist involvement note

Step 3: Counsel Patients on the Refill Timeline Before They Run Out

Patients on Synarel should know before they leave your office:

At 400 mcg/day (endometriosis dose), one 8 mL bottle lasts approximately 30 days

At 1,600 mcg/day (CPP dose), one 8 mL bottle lasts only approximately 7 days

Patients should start the refill process 5–7 days before their current supply runs out

If using a specialty pharmacy, ordering lead times may add 1–3 business days even when it is available

Step 4: Use medfinder as a Patient Resource for Availability Checks

Rather than having your staff spend time on phone calls to pharmacies, you can direct patients to medfinder. Patients provide their medication, dose, and location, and medfinder calls pharmacies on their behalf to identify which ones can fill the prescription. Results are texted to the patient — with no hold music, no transfers, and no wasted trips.

This reduces call volume to your office and empowers patients to solve the access problem themselves without adding to your staff's workload.

Step 5: Create a Written Contingency Plan for Each Patient

Particularly for CPP patients — who cannot afford gaps in GnRH suppression — have a written contingency plan in the chart and communicated to the family. This plan should include:

The preferred pharmacy and contact number for Synarel refills

A backup clinical alternative (e.g., leuprolide depot) and the dose you would use if Synarel becomes unavailable

Instructions for the family on what to do and who to call if they can't fill the prescription within 48 hours

When to Pivot to an Alternative Medication

If a patient has had repeated access difficulties and Synarel availability in your area is consistently unreliable, it may be worth proactively transitioning them to an alternative rather than managing repeated crises:

For endometriosis: leuprolide depot (Lupron Depot) or goserelin (Zoladex) are proven, widely available alternatives

For CPP: histrelin (Supprelin LA) implant or triptorelin (Triptodur) can dramatically reduce access complexity with less-frequent dosing

For more clinical context, see our Synarel shortage update for providers.