How to Find a Doctor Who Can Prescribe Theo-24 XR Near You [2026 Guide]

Theo-24 XR (theophylline extended release) is a prescription medication used for the long-term management of asthma and COPD. Since it is not a controlled substance, there are no special prescribing restrictions — virtually any licensed prescriber can write for it. But finding the right provider who is familiar with theophylline and its monitoring requirements is important.

Who Can Prescribe Theo-24 XR?

Because theophylline is not a controlled substance, any of the following licensed providers can prescribe it:

Pulmonologists: Lung specialists who frequently manage complex asthma and COPD cases. Most familiar with theophylline's narrow therapeutic window and monitoring protocol.

Primary care physicians (PCPs): Family medicine doctors and internists prescribe theophylline regularly for stable asthma and COPD patients.

Allergists and immunologists: Commonly prescribe for allergic asthma patients where theophylline is used as adjunct therapy.

Nurse practitioners (NPs) and physician assistants (PAs): Have full prescribing authority in most states and frequently manage respiratory conditions.

Geriatricians: Older patients on long-term theophylline may be managed by geriatricians who are comfortable with the drug's complex pharmacokinetics.

When You Need a New Prescription

If you're new to theophylline or recently moved and need to establish care, here's what you'll need from your provider:

A clinical assessment of your asthma or COPD severity.

A baseline serum theophylline level if you're transferring from another provider (or a baseline before starting if new to the drug).

A review of your other medications for potential interactions (over 170 known drug interactions).

Your smoking status — smoking significantly increases theophylline clearance and affects dosing.

How to Find a Pulmonologist Near You

To find a pulmonologist, try:

Your insurance plan's provider directory (search by specialty: Pulmonology).

ZocDoc — filters by specialty, insurance, and availability.

Your primary care doctor's referral network.

The American College of Chest Physicians (ACCP) physician finder at chestnet.org.

Can Telehealth Providers Prescribe Theo-24 XR?

Yes. Since theophylline is not a controlled substance, it can be prescribed via telehealth. However, there are important limitations to be aware of:

Theophylline requires periodic serum level monitoring, which requires in-person blood draws. A telehealth provider can order these labs, but you'll need to visit a local lab for the draw.

Initial assessment for respiratory conditions may benefit from in-person pulmonary function testing (spirometry).

Telehealth platforms like Teladoc, MDLive, and Amazon Clinic can handle follow-up prescriptions and refills for established theophylline patients.

What to Tell Your Doctor to Get Theophylline

When discussing theophylline with a new provider, be prepared to share:

Your current diagnosis (asthma, COPD, or both) and severity level.

Your most recent serum theophylline level and target range.

A complete medication list including OTC medications, supplements, and herbals (many interact with theophylline).

Your smoking history and current status.

For a thorough overview of the medication to bring to your appointment, see our guide on what Theo-24 XR is and how it works.