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

Tetracaine is a cornerstone local anesthetic in ophthalmology, anesthesiology, and emergency medicine. Despite the absence of an active FDA-declared shortage, clinicians across the country continue to report inconsistent availability — particularly through retail pharmacy channels. This guide provides a clinical overview of the current tetracaine supply landscape, practical sourcing guidance, and protocols for managing patients when tetracaine is temporarily unavailable.

Current Tetracaine Supply Status (2026)

As of 2026, tetracaine is not on the FDA's active drug shortage list. However, the drug's supply dynamics create real challenges:

Pontocaine HCl discontinued: The branded injectable tetracaine for spinal anesthesia has been discontinued. Generic tetracaine injection (Niphanoid) and other generics remain available from hospital distributors.

Limited manufacturers of ophthalmic formulation: Tetracaine 0.5% ophthalmic solution is manufactured by a small number of suppliers (including Bausch + Lomb, Somerset Therapeutics, Paragon BioTeck, and Akorn). Any production disruption at a single manufacturer can create regional gaps.

Retail pharmacy bypass: Most tetracaine moves through medical/surgical distributors, not the retail pharmacy channel. Patients prescribed tetracaine for outpatient use may find it unavailable at chain pharmacies.

Clinical Overview: Tetracaine Pharmacology and Uses

Tetracaine is an ester-class local anesthetic that blocks voltage-gated sodium channels in the alpha subunit, preventing action potential generation and propagation. Its mechanism requires blockade at three successive nodes of Ranvier for complete nerve conduction inhibition. Metabolized by plasma pseudocholinesterases in ocular tissues, tetracaine has a pKa of 8.46, offering a moderate balance of ionized and non-ionized forms at physiologic pH.

Key clinical formulations:

0.5% ophthalmic solution: Onset within 30 seconds; duration 10–15 minutes. Used for tonometry, removal of foreign bodies, fitting contact lenses, and intraocular procedures.

Spinal injection (0.5%–1%): Onset rapid; surgical anesthesia for 2–3 hours. Indicated for procedures requiring extended lower body anesthesia.

Topical 2% solution: For minor skin procedures and surface anesthesia.

Contraindications and High-Risk Populations

Prescribers should screen for the following before selecting tetracaine:

Pseudocholinesterase deficiency: Absolute contraindication. Tetracaine cannot be safely metabolized in these patients. Both tetracaine and proparacaine are contraindicated; amide anesthetics should be used instead.

Known ester anesthetic allergy: Cross-reactivity with other ester anesthetics (proparacaine, benzocaine, procaine) is possible due to shared PABA metabolite.

Reduced plasma esterase activity: Elderly, debilitated, or hepatically impaired patients may have reduced esterase activity, prolonging drug effects and increasing toxicity risk.

Methemoglobinemia risk: Co-administration with oxidizing agents (nitrates, dapsone, chloroquine, IV acetaminophen) increases methemoglobinemia risk. Monitor accordingly.

Clinical Alternatives When Tetracaine Is Unavailable

For ophthalmic procedures requiring topical anesthesia:

Proparacaine 0.5%: Most common substitute. Onset within 30 seconds; duration 15 minutes. Causes less instillation discomfort than tetracaine. Widely available at retail pharmacies. Also an ester; contraindicated in pseudocholinesterase deficiency.

Lidocaine 2%–4% ophthalmic gel: Amide anesthetic; suitable when ester allergy or pseudocholinesterase deficiency is present. Studies confirm non-inferiority to tetracaine drops for cataract surgery anesthesia.

For spinal anesthesia:

Bupivacaine 0.5% (isobaric or hyperbaric): The current standard of care for most spinal anesthesia procedures. Duration 2–3+ hours.

Ropivacaine 0.75%: Lower cardiotoxicity profile than bupivacaine; suitable for procedures requiring prolonged regional blockade.

Helping Your Patients Access Tetracaine

When prescribing tetracaine for outpatient use, consider providing your patients with a list of compounding pharmacies known to carry it. For practices frequently encountering availability issues, medfinder for providers allows you to help patients locate their medication at pharmacies near them, reducing delays in care.

See also: How to Help Your Patients Find Tetracaine in Stock for a full provider workflow guide.