How to Help Your Patients Find Terrell (Isoflurane) in Stock: A Provider's Guide

As a provider — whether you're an anesthesiologist, CRNA, surgeon, or facility administrator — you occupy a unique position when drug supply issues arise. You're the first person your patients turn to when something about their surgical plan changes. And while anesthetics like Terrell (isoflurane) are procured through institutional channels, you can take concrete actions to protect your patients and your surgical schedule.

This guide walks you through practical steps for ensuring Terrell availability at your facility, communicating with patients when supply issues occur, and supporting patient access to all perioperative medications.

Understanding the Terrell (Isoflurane) Supply Chain

Terrell (isoflurane, USP) is manufactured by Piramal Critical Care, Inc. and distributed through medical supply distributors. Key supply chain characteristics relevant to providers:

• Terrell is an Abbreviated New Drug Application (ANDA) product — meaning it's a generic formulation of isoflurane, though Piramal markets it under the Terrell brand name.
• It comes in 100 mL and 250 mL amber glass bottles and must be stored away from direct light. Shipping requires careful handling.
• The global isoflurane market is small and highly concentrated, making it more susceptible to supply disruptions than high-volume pharmaceuticals.

Step 1: Conduct a Supply Chain Risk Assessment at Your Facility

Before a shortage hits, understand your vulnerability:

• How many distributors supply your isoflurane? If just one, this is a critical risk.
• What is your current isoflurane stock level vs. expected consumption for the next 30–60 days?
• Does your facility have sevoflurane vaporizers as a backup? Are they calibrated and ready to use?
• Is your anesthesia team trained on TIVA protocols as a tertiary fallback?

Step 2: Establish Relationships with Multiple Suppliers

Work with your pharmacy director and supply chain team to establish accounts with at least two distributors. Key distributors for medical anesthetics include major national suppliers like Cardinal Health, McKesson, and Medline, as well as regional medical distributors. Having pre-established accounts means faster order fulfillment in an emergency.

Also register with Piramal Critical Care directly. Their customer service team can be reached at 1-800-414-1901 (Monday–Friday, 8 a.m.–5 p.m. EST). Direct accounts can sometimes access stock when distributor channels are allocated out.

Step 3: Communicate Proactively with Your Patients

If a supply issue arises, transparent and timely communication prevents patient anxiety and maintains trust. Key messages to convey:

• Explain whether any change to their anesthetic plan is necessary, and why.
• Reassure patients that alternative agents (sevoflurane, TIVA) are equally safe and FDA-approved.
• Discuss any meaningful differences in recovery profile, nausea risk, or emergence characteristics that might affect the patient's experience.
• Screen for contraindications specific to the alternative agent (e.g., MH risk factors for any halogenated agent, propofol allergy for TIVA).

Step 4: Help Patients Access Their Perioperative Medications

Beyond anesthetics, your surgical patients often need pre-operative and post-operative medications that can be difficult to find, particularly if they're undergoing complex procedures or managing chronic conditions. Patients filling prescriptions for pain management, anti-nausea drugs, antibiotics, or anticoagulants after surgery may encounter their own pharmacy availability challenges.

This is where medfinder for providers adds value. You can direct patients to medfinder — a service that calls pharmacies near them to check which ones have their specific medications in stock, then texts them the results. This saves patients time and frustration, and reduces the volume of "my pharmacy doesn't have it" calls coming back to your office.

Step 5: Document and Report Supply Issues

If your facility experiences a supply disruption for Terrell, consider reporting it to the FDA MedWatch Drug Shortage Program and ASHP. Reporting helps regulatory agencies track the scope of supply problems and trigger interventions more quickly. This also creates a documented record should your facility need to demonstrate due diligence for accreditation purposes.

For a deeper dive into shortage management strategies, see our full provider shortage guide for Terrell in 2026.