Onfi Shortage Update: What Patients Need to Know in 2026

If you've been struggling to fill your Onfi prescription, you're dealing with a problem that has frustrated patients and caregivers across the country for several years. Onfi — and its generic equivalent, clobazam — has experienced ongoing supply challenges that continue into 2026. This update explains what's happening, why the shortage exists, what it means for your costs, and what steps you can take right now.

Current Shortage Status: Onfi in 2026

As of early 2026, Onfi continues to face intermittent availability problems. While clobazam may not always appear on the FDA's official Drug Shortages database at any given moment, patients across the country consistently report difficulty filling their prescriptions — particularly for the oral suspension formulation.

Availability varies significantly by region, pharmacy type, and formulation. The generic tablet is the most consistently available, while the oral suspension remains the most affected. Independent and specialty pharmacies generally have more reliable stock than large chain pharmacies like CVS or Walgreens.

A Brief History of the Onfi/Clobazam Supply Problem

Understanding the history helps explain why the problem persists:

• 2011: FDA approves clobazam (Onfi) for adjunctive treatment of seizures in LGS patients 2 years and older.
• 2018: Sympazan (clobazam oral film) approved as an alternative formulation.
• 2019–2020: Generic clobazam becomes available from multiple manufacturers. Supply is initially adequate.
• 2020–2022: Intermittent manufacturing disruptions begin affecting generic supply, particularly the oral suspension.
• 2023–2025: Supply fluctuations continue with periodic improvements followed by new disruptions.
• 2026: Availability remains inconsistent across regions and formulations; patients continue to report gaps.

Why the Shortage Is Hard to Resolve

Several structural factors make the clobazam supply problem persistent:

• Small specialty market: Lennox-Gastaut syndrome is rare, so fewer manufacturers produce clobazam. Any production disruption has an outsized impact.
• DEA production quotas: As a Schedule IV controlled substance, DEA-set production limits restrict how quickly manufacturers can ramp up output to meet demand spikes.
• Raw material volatility: Disruptions in API (active pharmaceutical ingredient) supply chains can halt production even when demand remains constant.
• Oral suspension complexity: Liquid formulations are more complex to manufacture and have shorter shelf lives than tablets, making supply more fragile.

How Much Does Onfi Cost in 2026?

Cost is a major concern alongside availability. Here's what patients can expect in 2026:

• Brand-name Onfi: $150–$600+ per month without insurance, and retail pricing can exceed $1,000 at some pharmacies.
• Generic clobazam (tablets): $30–$150 for a 30-day supply at cash price; typically $50–$90 with a GoodRx or SingleCare discount card.
• With insurance: Most commercial and Medicare plans cover generic clobazam with a moderate copay. Brand-name Onfi may require prior authorization.

What You Can Do Right Now

Here are the most effective actions to take if you're struggling to find Onfi:

1. Use medfinder — a service that calls pharmacies near you to find which ones have your medication in stock and texts you the results.
2. Try independent pharmacies and specialty pharmacies — they maintain more consistent stock than large chains.
3. Ask about all formulations — tablets, suspension, and Sympazan oral film have separate supply chains.
4. Contact your neurologist immediately if you have less than a week's supply — never stop Onfi abruptly.
5. Ask Lundbeck (1-800-455-1141) about bridge supply or samples.

The Outlook for Onfi Supply

The structural factors driving clobazam shortages — a niche market, few manufacturers, controlled substance regulations — are unlikely to fully resolve in the near term. The best approach is proactive planning: refill early, use tools like medfinder to find Onfi near you, and maintain a relationship with an independent pharmacy that knows your needs. Patients who plan ahead and have a backup strategy are far better positioned to maintain uninterrupted seizure control.