What Is Bupivacaine?

Bupivacaine is a long-acting amide-type local anesthetic used to numb specific areas of the body during and after surgical procedures. It is one of the most widely used injectable anesthetics in hospitals and surgical centers worldwide.

Healthcare providers use Bupivacaine for epidural anesthesia during labor and delivery, spinal anesthesia for surgery, peripheral nerve blocks, dental procedures, and local wound infiltration. The brand-name liposomal formulation Exparel is injected directly into surgical sites for extended postoperative pain relief lasting up to 72 hours.

Because Bupivacaine is administered by injection in clinical settings, patients do not self-administer this medication at home.

How does Bupivacaine work?

Bupivacaine works by blocking sodium channels in nerve cell membranes. When injected near a nerve, it prevents sodium ions from flowing into nerve cells, which stops the nerve from generating and transmitting pain signals to the brain.

Compared to shorter-acting local anesthetics like Lidocaine, Bupivacaine binds more tightly to sodium channels and provides pain relief lasting 4–8 hours or longer, depending on the dose, concentration, and whether epinephrine is added to slow absorption. The Exparel liposomal formulation extends this effect even further by slowly releasing Bupivacaine over several days.

What doses are available for Bupivacaine?

• 0.25% injection (with and without preservative, with or without epinephrine)
• 0.5% injection (with and without preservative, with or without epinephrine)
• 0.75% preservative-free injection (not for obstetrical use)
• 0.75% in 8.25% dextrose (Marcaine Spinal — intrathecal use)
• Exparel — 13.3 mg/mL liposomal injectable suspension for postsurgical pain
• Xaracoll — collagen matrix implant for postsurgical analgesia

How hard is it to find Bupivacaine in stock?

Bupivacaine is extremely difficult to find right now. It has been on the FDA drug shortage list since June 2023 due to manufacturing delays, supply chain disruptions, and increased demand. Multiple concentrations and formulations — including preservative-free vials and the 0.75% spinal preparation — remain on backorder or in limited supply heading into 2026. The FDA has authorized temporary importation from foreign manufacturers to help, but availability is still unreliable across hospitals and surgical centers.

If your procedure requires Bupivacaine, your anesthesiologist or surgeon may need to substitute an alternative local anesthetic such as Ropivacaine or Lidocaine. Ask your care team about availability well in advance of any scheduled surgery.

Who Can Prescribe Bupivacaine?

Bupivacaine is primarily ordered and administered by:

• Anesthesiologists — for epidural, spinal, and nerve block procedures
• Surgeons (general, orthopedic, plastic, cardiothoracic) — for wound infiltration and Exparel use
• Obstetricians/Gynecologists — for labor epidurals and surgical anesthesia
• Pain management specialists — for chronic pain nerve blocks
• Dentists and oral surgeons — for dental procedures
• Emergency medicine physicians — for laceration repair and nerve blocks
• Podiatrists and dermatologists — for minor surgical procedures

Since Bupivacaine is an injectable used in clinical settings, it is not typically prescribed as a take-home medication.

Is Bupivacaine a controlled substance?

No. Bupivacaine is not a controlled substance and does not have a DEA schedule. It does not produce euphoria or have abuse potential. However, it is restricted to use by or under the supervision of qualified healthcare professionals due to the serious risks of improper injection, including cardiac arrest and seizures.

Common Side Effects of Bupivacaine

• Numbness or tingling at the injection site
• Nausea and vomiting
• Headache (especially after spinal anesthesia)
• Back pain
• Dizziness or drowsiness
• Restlessness or tremors
• Chills or shivering
• Low blood pressure (hypotension)
• Slow or fast heartbeat
• Blurred vision

Important safety warning: The 0.75% concentration is not recommended for obstetrical anesthesia due to reports of cardiac arrest with difficult resuscitation. Always ensure your anesthesia team is aware of any heart conditions or allergies before receiving Bupivacaine.

Alternative Medications to Bupivacaine

Given the ongoing shortage, your care team may consider these alternatives:

• Ropivacaine (Naropin) — a similar long-acting local anesthetic with a lower risk of cardiac toxicity; the most common substitute during the Bupivacaine shortage
• Lidocaine — a shorter-acting local anesthetic that is widely available; may require repeat dosing for longer procedures
• Mepivacaine (Carbocaine) — an intermediate-acting option for shorter surgical and dental procedures
• Chloroprocaine — an ultra-short-acting ester-type anesthetic sometimes used for spinal anesthesia when amides are unavailable

Your anesthesiologist or surgeon will choose the best alternative based on the type and duration of your procedure.

Drug Interactions with Bupivacaine

• Other local anesthetics — additive toxicity risk; doses must be carefully calculated when using multiple agents
• Potent inhalation anesthetics (Halothane, Enflurane) — increased risk of cardiac arrhythmias
• MAO inhibitors — risk of severe hypertension, especially with Bupivacaine/epinephrine formulations
• Ergot-type drugs — risk of severe persistent hypertension and stroke
• Beta-blockers (Propranolol, Carvedilol) — may slow Bupivacaine metabolism and increase blood levels
• Cimetidine — reduces hepatic clearance of Bupivacaine
• Anticoagulants/blood thinners — increased bleeding risk with epidural or spinal injections
• Drugs causing methemoglobinemia (nitrates, Dapsone, Benzocaine) — combined use increases this rare but serious risk

Tell your care team about all medications you take, including blood thinners and blood pressure medications, before any procedure involving Bupivacaine.

Final Thoughts on Bupivacaine

Bupivacaine remains one of the most important local anesthetics in modern medicine — but it's also one of the hardest to find right now. The ongoing FDA shortage, which began in June 2023, continues to affect hospitals, surgical centers, and patients across the country heading into 2026.

If you have a procedure coming up that may require Bupivacaine, talk to your surgical team well in advance about availability. Your anesthesiologist can often substitute Ropivacaine or Lidocaine without compromising the quality of your care. For the latest availability information, Medfinder can help you check which facilities have Bupivacaine in stock near you.