How to Find a Doctor Who Can Prescribe RIMSO-50 Near You [2026 Guide]

RIMSO-50 (dimethyl sulfoxide) is unlike most medications in one crucial way: patients cannot simply pick up a prescription and administer it themselves at home. RIMSO-50 must be instilled directly into the bladder through a catheter by a trained healthcare provider in a clinical setting. This means finding the right specialist is not just about who prescribes the drug — it is about who can actually perform the procedure.

If you are newly diagnosed with interstitial cystitis (IC/BPS), or if you are struggling to access RIMSO-50 treatment, this guide will help you find a qualified provider near you in 2026.

Who Can Prescribe and Administer RIMSO-50?

RIMSO-50 is a prescription medication that requires intravesical administration in a clinical setting. The following specialists typically prescribe and perform the procedure:

Urologists: The most common type of provider for RIMSO-50. Urologists specialize in urinary tract conditions and routinely perform bladder instillations in their offices.

Urogynecologists: Specialists who focus on pelvic floor conditions in women, including IC. Many urogynecologists are very experienced with RIMSO-50 and bladder instillation therapies.

Female pelvic medicine and reconstructive surgery (FPMRS) specialists: Board-certified subspecialists in pelvic floor disorders, often with deep experience managing IC/BPS.

Gynecologists (in some cases): Some OB/GYN practices that have experience with IC may perform bladder instillations, though this is less common.

Is RIMSO-50 a Controlled Substance?

No. RIMSO-50 (dimethyl sulfoxide) is not a controlled substance and is not scheduled by the DEA. Any physician, NP, or PA with prescribing authority can prescribe it. However, because the administration requires a specific in-office procedure, it is primarily managed by specialists.

How to Find a Urologist or IC Specialist Near You

Finding a provider who specifically has experience with interstitial cystitis and bladder instillation therapy takes more effort than a simple online search. Here are the best approaches:

1. Use the Interstitial Cystitis Association (ICA) Provider Directory

The Interstitial Cystitis Association (ichelp.org) maintains a directory of IC-aware providers. This is one of the best resources for finding specialists who are knowledgeable about current treatment guidelines, including RIMSO-50 instillation therapy.

2. Use the American Urological Association (AUA) Find a Urologist Tool

The AUA's Find a Urologist tool allows you to search for board-certified urologists by location and subspecialty. Filter for those with an interest in pelvic health, female urology, or female pelvic medicine.

3. Ask for a Referral From Your Primary Care Provider

Your primary care provider (PCP) can refer you to a urologist or urogynecologist in your area. Specifically request a referral to a specialist with experience treating interstitial cystitis and performing bladder instillations. A vague referral to "a urologist" may land you with a provider who focuses primarily on prostate or kidney conditions and has little IC experience.

4. Contact Academic Medical Centers and Large Health Systems

Large academic medical centers often have multidisciplinary IC/BPS clinics staffed by specialists with extensive experience in bladder instillation therapy. If you live near a university hospital or large regional health system, check whether they have a dedicated urology clinic focused on pelvic pain or IC.

5. Check IC Patient Community Resources

Online IC patient communities — on Reddit, Facebook, and the ICA website — are filled with patients who have found trusted providers. Searching your city or region in these communities can yield real-world recommendations that formal directories miss.

Can Telehealth Help With RIMSO-50?

Telehealth has limited utility for RIMSO-50 specifically, because the drug must be administered in person via catheter. However, telehealth can be genuinely useful in the IC treatment journey in other ways:

Initial consultation and symptom evaluation to determine whether IC is the likely diagnosis

Prescribing oral IC medications such as Elmiron, amitriptyline, or antihistamines

Follow-up appointments to manage ongoing care between instillation sessions

Referrals and second-opinion consultations

Once you have found a provider and have a RIMSO-50 prescription, medfinder can help you confirm which pharmacies near you have the medication in stock, so you and your provider can coordinate a smooth treatment process.

Learn more about the medication itself in our guide: What Is RIMSO-50? Uses, Dosage, and What You Need to Know in 2026.