Acamprosate Shortage: What Providers and Prescribers Need to Know in 2026

Updated:

February 14, 2026

Author:

Peter Daggett

Summarize this blog with AI:

A clinical briefing on the 2026 Acamprosate shortage for providers: supply timeline, prescribing implications, alternatives, and tools to help patients.

Provider Briefing: The Acamprosate Shortage in 2026

Acamprosate Calcium 333 mg delayed-release tablets remain in an active drug shortage as of early 2026. For providers managing patients with alcohol use disorder (AUD), this creates real clinical challenges — from treatment continuity to patient retention in recovery programs.

This briefing covers the current state of the shortage, its implications for your prescribing practice, and practical tools to help your patients maintain access to effective pharmacotherapy.

Shortage Timeline

The Acamprosate shortage has evolved over the past two years:

  • 2023-2024: Initial reports of supply constraints emerge. Zydus Pharmaceuticals begins experiencing manufacturing disruptions for its generic Acamprosate 333 mg tablets.
  • 2024: ASHP formally lists Acamprosate as an active drug shortage. Zydus temporarily discontinues production. Other manufacturers (Teva, Amneal, Mylan/Viatris) continue production but at insufficient volumes to meet total demand.
  • 2025-2026: Shortage persists. No new manufacturers have entered the market. Remaining suppliers report intermittent availability. The original brand product, Campral, remains discontinued (Forest/Allergan exited the market years ago).

There is currently no confirmed resolution date from ASHP or the FDA.

Prescribing Implications

The shortage raises several clinical considerations:

Treatment Continuity

Patients who are stable on Acamprosate may face gaps in therapy. While Acamprosate does not produce physical dependence or withdrawal syndrome upon discontinuation, interruptions in treatment can increase relapse risk — particularly in the critical first year of recovery.

New Starts

Initiating new patients on Acamprosate is complicated by uncertain pharmacy availability. Consider proactively verifying stock before writing the prescription, or discussing backup options with the patient at the initial visit.

Adherence Challenges

Acamprosate's three-times-daily, six-tablet-per-day regimen already presents adherence challenges. Adding the stress of finding a pharmacy with stock further burdens patients who are often managing multiple aspects of their recovery.

Current Availability Picture

As of February 2026:

  • Zydus: Temporarily discontinued
  • Teva: Producing but with supply constraints
  • Amneal: Producing; intermittent availability
  • Other generics (Mylan/Viatris): Limited production

Availability varies significantly by region and pharmacy. Chain pharmacies tend to report out-of-stock more frequently than independent pharmacies, which often maintain different wholesaler relationships.

Medfinder for Providers offers real-time pharmacy stock data that can help you direct patients to pharmacies with current supply.

Cost and Access Considerations

Understanding the cost landscape helps you anticipate and address patient barriers:

  • Retail cash price: $300-$340/month (180 tablets) without insurance
  • With discount coupons (GoodRx, SingleCare): As low as $68/month
  • Insurance coverage: Most commercial and Medicaid plans cover generic Acamprosate at Tier 2. Prior authorization is occasionally required by Medicaid managed care plans but is not standard for commercial insurance.
  • Medicare Part D: Generally covered as a Tier 2 generic
  • Patient assistance: SAMHSA-funded treatment programs may provide Acamprosate at no cost. NeedyMeds and RxAssist list additional resources for uninsured patients.

Price variability between pharmacies is significant during the shortage. Advise patients to compare prices and use discount programs, especially if they're paying out of pocket. More details are available in our provider guide to helping patients save money on Acamprosate.

Alternative Pharmacotherapy Options

When Acamprosate is unavailable, consider these evidence-based alternatives:

Naltrexone (First-Line Alternative)

  • Oral: 50 mg daily (generic widely available, under $30/month with coupon)
  • Injectable (Vivitrol): 380 mg IM monthly (addresses adherence but costs $1,000-$1,800/month; often insurance-covered)
  • Contraindications: Current opioid use, acute hepatitis, liver failure
  • Clinical note: Unlike Acamprosate, Naltrexone can be used in patients who haven't yet achieved complete abstinence

Disulfiram

  • 250 mg daily; aversion-based mechanism
  • Best for highly motivated patients with strong support systems
  • Requires liver monitoring; contraindicated with metronidazole and certain other medications
  • Very affordable (generic $20-$60/month)

Off-Label Options

  • Gabapentin (900-1,800 mg/day): Particularly useful for patients with co-occurring anxiety or insomnia. Growing evidence base for AUD.
  • Topiramate (up to 200-300 mg/day): Evidence supports reduction in heavy drinking days. Requires slow titration; cognitive side effects are common.

For a patient-facing overview of alternatives, see Alternatives to Acamprosate.

Tools and Resources for Your Practice

Here are practical resources to help manage the shortage's impact on your patients:

  • Medfinder for Providers: Real-time pharmacy stock lookup. Direct patients to pharmacies that have Acamprosate in stock rather than sending them on a wild goose chase.
  • ASHP Drug Shortage Resource Center: Updated shortage status and manufacturer information
  • SAMHSA Treatment Locator: Find treatment facilities that may have their own medication supply
  • State substance abuse authorities: Many states have medication assistance programs specifically for AUD pharmacotherapy

Looking Ahead

The Acamprosate shortage reflects a broader vulnerability in the generic drug market — medications with smaller patient populations and lower profit margins are disproportionately affected by manufacturer exits and supply chain disruptions.

In the near term, providers should:

  • Have a contingency plan for every patient currently on Acamprosate
  • Discuss backup medication options proactively
  • Use real-time stock tools to help patients locate supply
  • Advocate for better supply chain transparency and manufacturer accountability

Final Thoughts

The Acamprosate shortage is an ongoing challenge, but it doesn't have to mean treatment failure for your patients. With proactive planning, familiarity with alternative agents, and tools like Medfinder, you can help patients maintain effective pharmacotherapy through the shortage.

For a step-by-step workflow, see our companion article: How to help your patients find Acamprosate in stock.

Is Acamprosate still being manufactured in 2026?

Yes. While Zydus has temporarily discontinued production, other manufacturers including Teva and Amneal continue to produce Acamprosate Calcium 333 mg tablets. Supply is limited and inconsistent, but the medication has not been permanently discontinued.

Should I switch existing patients off Acamprosate preemptively?

Not necessarily. If a patient is stable and their pharmacy can still fill prescriptions, continuing Acamprosate is reasonable. However, it's prudent to discuss contingency options and verify stock availability proactively. Having a backup plan in place reduces the risk of treatment gaps.

Can Naltrexone and Acamprosate be prescribed together?

Yes. The combination has been studied and is generally safe. Naltrexone may increase Acamprosate blood levels modestly, but no dose adjustment is required. Some clinicians use the combination for patients with refractory AUD, though evidence for superior efficacy over monotherapy is mixed.

Does Acamprosate require prior authorization from most insurers?

Generally, no. Most commercial insurance plans cover generic Acamprosate without prior authorization. Some Medicaid managed care plans do require prior authorization, so check with the specific plan. Medicare Part D plans typically cover it as a Tier 2 generic.

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