How to Find a Doctor Who Can Prescribe Fluorouracil Near You [2026 Guide]

Fluorouracil (5-FU) is a prescription-only chemotherapy drug used in both oncology and dermatology settings. Because it is used for very different conditions — from colorectal cancer to actinic keratosis — the type of doctor who prescribes it varies significantly. Here's how to find the right specialist for your situation.

Is Fluorouracil a Controlled Substance?

No. Fluorouracil is not a DEA-scheduled controlled substance. Any licensed prescriber — including physicians (MD/DO), nurse practitioners (NP), and physician assistants (PA) — can prescribe it if it is within their scope of practice and the patient has an appropriate indication. There are no special registration requirements for prescribers beyond a standard DEA number (which is required for any Schedule drug, not applicable here).

Who Prescribes IV Fluorouracil for Cancer?

Intravenous fluorouracil for cancer treatment is almost exclusively prescribed and managed by oncology specialists. You will need a referral to one of the following:

Medical oncologist: The primary specialist for systemic chemotherapy. For colorectal, gastric, pancreatic, and breast cancer, this is almost always your starting point.

Hematologist-oncologist: Often manages both blood cancers and solid tumors, especially in community settings.

Radiation oncologist: May co-manage fluorouracil when it's used as a radiosensitizer (e.g., for anal cancer or rectal cancer concurrent chemoradiation).

To find an oncologist near you: your primary care physician can provide a referral. You can also search directly through the American Society of Clinical Oncology's (ASCO) Find an Oncologist tool, or through your insurance carrier's provider directory.

Who Prescribes Topical Fluorouracil for Skin Conditions?

Topical fluorouracil cream (Efudex, Carac, Tolak, generic 5% cream) for actinic keratosis and superficial basal cell carcinoma is most commonly prescribed by:

Dermatologists: The primary specialists for skin cancer and precancerous lesions. Board-certified dermatologists are the most common prescribers.

Primary care physicians: Many PCPs prescribe topical fluorouracil for actinic keratosis, especially for straightforward presentations.

Nurse practitioners and physician assistants in dermatology: NPs and PAs practicing in dermatology settings frequently prescribe topical fluorouracil.

Can I Get a Fluorouracil Prescription Via Telehealth?

For topical fluorouracil, telehealth is increasingly available. Many dermatology telehealth platforms can evaluate actinic keratosis via photos and video consultation and prescribe topical fluorouracil if appropriate. Since fluorouracil is not a controlled substance, there are no special restrictions on telehealth prescribing.

Telehealth dermatology options in 2026 include platforms like Teladoc, Dermatologist On Call, and direct-to-patient dermatology practices. Some in-person dermatology groups also offer hybrid care where follow-ups can be done via telehealth after an initial in-person visit.

For IV fluorouracil used in chemotherapy, telehealth alone is not sufficient — you will need in-person oncology evaluation, and the infusion must be administered in a clinical setting.

What to Tell Your Doctor When Requesting Fluorouracil

Whether you're seeing a new specialist or your established provider, be prepared to share:

Your diagnosis or suspected diagnosis (e.g., actinic keratosis, colorectal cancer stage/type).

Previous medications tried and their results (especially if seeking topical fluorouracil for AK after other treatments).

Any family history of DPD deficiency (important for safety assessment).

Current medications, including warfarin and any other chemotherapy drugs (for interaction checking).

Once you have your prescription, the next challenge may be finding a pharmacy that has it in stock. See our guide on what fluorouracil is used for, and visit medfinder.com to find which pharmacies in your area have it in stock.