Enter a new world of postoperative pain management

With the first and only extended-release dual-acting local anesthetic (DALA)1-4

ZYNRELEF is indicated in adults for instillation to produce postsurgical analgesia for up to 72 hours after soft tissue and orthopedic procedures including foot and ankle, and other procedures in which direct exposure to articular cartilage is avoided.

Limitations of Use: Safety and efficacy have not been established in highly vascular surgeries, such as intrathoracic, large 4 or more level spinal, and head and neck procedures.3

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ZYNRELEF: Redefining postoperative pain relief

With a novel mechanism of action and a single, needle-free application into the surgical site, ZYNRELEF provides patients with up to 72 hours of postoperative pain relief and has been proven to reduce, possibly even eliminate, the need for opioids after surgery. As the first and only extended-release dual-acting local anesthetic (DALA), ZYNRELEF combines bupivacaine with a low dose of meloxicam for a synergistic analgesic effect.1-3,5 It is the only local anesthetic considered by FDA to be extended-release, based on superiority to bupivacaine through 72 hours.3
DALA icon.
Synergistic Mechanism
of Action3,5,a
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Superior 72-Hour Pain Relief3,b
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Opioid Reduction & Elimination3,b
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The HOPE Project6
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Needle-Free Application3
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Broad Access Pricing & Favorable Reimbursement
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aSynergistic increases in analgesia compared with meloxicam or bupivacaine alone were shown in preclinical and Phase 2 studies.3,5
bClinical findings were demonstrated in Phase 3 trials for bunionectomy with osteotomy and open inguinal herniorrhaphy comparing ZYNRELEF to both placebo and bupivacaine HCl solution.1-3

ZYNRELEF box with 14-mL vial next to it; needle-free applicator laying in front of vial and box.
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ZYNRELEF combines bupivacaine, an amide-type local anesthetic, with a low dose of meloxicam, a nonsteroidal anti-inflammatory drug, in a proprietary Biochronomer® extended-release polymer that provides controlled diffusion of both ingredients simultaneously for 72 hours at the surgical site.3,5

ZYNRELEF is indicated in adults for instillation to produce postsurgical analgesia for up to 72 hours after soft tissue and orthopedic procedures including foot and ankle, and other procedures in which direct exposure to articular cartilage is avoided.3

See full Prescribing Information, including Boxed Warning.

ZYNRELEF – a foundation for postoperative pain management

Generic local anesthetics are not designed to provide pain relief beyond 8 to 12 hours, and even longer-acting local anesthetics have exhibited limited and inconsistent efficacy beyond 24 hours—in part because inflammation inhibits their ability to penetrate the nerve cell membrane.7-12

Learn more about how inflammation can limit local anesthetics, and how ZYNRELEF is designed to overcome the challenges of local inflammation.3,12

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Important Safety Information and Indication

Indication

ZYNRELEF is indicated in adults for instillation to produce postsurgical analgesia for up to 72 hours after soft tissue and orthopedic procedures including foot and ankle, and other procedures in which direct exposure to articular cartilage is avoided.

Limitations of Use: Safety and efficacy have not been established in highly vascular surgeries, such as intrathoracic, large 4 or more level spinal, and head and neck procedures.

Important Safety Information

WARNING: RISK OF SERIOUS CARDIOVASCULAR AND GASTROINTESTINAL EVENTS

  • Nonsteroidal anti-inflammatory drugs (NSAIDs) cause an increased risk of serious cardiovascular thrombotic events, including myocardial infarction and stroke, which can be fatal. This risk may occur early in treatment and may increase with duration of use.
  • ZYNRELEF is contraindicated in the setting of coronary artery bypass graft (CABG) surgery.
  • NSAIDs cause an increased risk of serious gastrointestinal (GI) adverse events including bleeding, ulceration, and perforation of the stomach or intestines, which can be fatal. These events can occur at any time during use and without warning symptoms. Elderly patients and patients with a prior history of peptic ulcer disease and/or GI bleeding are at greater risk for serious GI events.

Contraindications

ZYNRELEF is contraindicated in patients with a known hypersensitivity (eg, anaphylactic reactions and serious skin reactions) to any amide local anesthetic, NSAIDs, or other components of ZYNRELEF; with history of asthma, urticaria, or other allergic-type reactions after taking aspirin or other NSAIDs (severe, sometimes fatal, anaphylactic reactions to NSAIDS have been reported in such patients); undergoing obstetrical paracervical block anesthesia; or undergoing CABG.

Warnings and Precautions

Dose-Related Toxicity: Monitor cardiovascular and respiratory vital signs and patient’s state of consciousness after application of ZYNRELEF. When using ZYNRELEF with other local anesthetics, overall local anesthetic exposure must be considered through 72 hours.

Hepatotoxicity: If abnormal liver tests persist or worsen, perform a clinical evaluation of the patient.

Hypertension: Patients taking some antihypertensive medication may have impaired response to these therapies when taking NSAIDs. Monitor blood pressure.

Heart Failure and Edema: Avoid use of ZYNRELEF in patients with severe heart failure unless benefits are expected to outweigh risk of worsening heart failure.

Renal Toxicity: Monitor renal function in patients with renal or hepatic impairment, heart failure, dehydration, or hypovolemia. Avoid use of ZYNRELEF in patients with advanced renal disease unless benefits are expected to outweigh risk of worsening renal failure.

Anaphylactic Reactions: Seek emergency help if an anaphylactic reaction occurs.

Risk of Joint Cartilage Necrosis and Degeneration with Unapproved Intra-articular Use: Animal studies evaluating the effects of ZYNRELEF following intra-articular administration in the knee joint demonstrated cartilage necrosis and degeneration.

Chondrolysis: Limit exposure to articular cartilage due to the potential risk of chondrolysis.

Methemoglobinemia: Cases have been reported with local anesthetic use.

Serious Skin Reactions: NSAIDs, including meloxicam, can cause serious skin adverse reactions. If symptoms present, evaluate clinically.

Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS): If symptoms are present, evaluate clinically.

Fetal Toxicity: Due to the risk of oligohydramnios/fetal renal dysfunction and premature closure of the ductus arteriosus with NSAIDS, limit use of ZYNRELEF between about 20 to 30 weeks gestation, and avoid use after about 30 weeks.

Hematologic Toxicity: Monitor hemoglobin and hematocrit in patients with any signs or symptoms of anemia.

Drug Interactions

Drugs That Interfere with Hemostasis: Monitor patients for bleeding who are using ZYNRELEF with drugs that interfere with hemostasis (eg, warfarin, aspirin, SSRIs/SNRIs). 

ACE Inhibitors, Angiotensin Receptor Blockers (ARBs), or Beta-Blockers: Use with ZYNRELEF may diminish the antihypertensive effect of these drugs. Monitor blood pressure.

ACE Inhibitors and ARBs: Use with ZYNRELEF in elderly, volume-depleted, or those with renal impairment may result in deterioration of renal function. In such high-risk patients, monitor for signs of worsening renal function.

Diuretics: NSAIDs can reduce natriuretic effect of furosemide and thiazide diuretics. Monitor patients to assure diuretic efficacy including antihypertensive effects.

Use in Specific Populations

Infertility: NSAIDs are associated with reversible infertility. Consider avoidance of ZYNRELEF in women who have difficulties conceiving.

Severe Hepatic Impairment: Only use if benefits are expected to outweigh risks; monitor for signs of worsening liver function.

Severe Renal Impairment: Not recommended.

Adverse Reactions

Most common adverse reactions (incidence ≥5%) in controlled clinical trials with ZYNRELEF are soft tissue procedures: vomiting and orthopedic procedures: constipation and headache.

Report side effects to Heron at 1-844-437-6611 or to FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Indication

ZYNRELEF is indicated in adults for instillation to produce postsurgical analgesia for up to 72 hours after soft tissue and orthopedic procedures including foot and ankle, and other procedures in which direct exposure to articular cartilage is avoided.

Limitations of Use: Safety and efficacy have not been established in highly vascular surgeries, such as intrathoracic, large 4 or more level spinal, and head and neck procedures.

Please see full Prescribing Information, including Boxed Warning.

References: 1. Viscusi E, Gimbel JS, Pollack RA, Hu J, Lee G-C. HTX-011 reduced pain intensity and opioid consumption versus bupivacaine HCl in bunionectomy: phase III results from the randomized EPOCH 1 study. Reg Anesth Pain Med. 2019;44(7):700-706. doi:10.1136/rapm-2019-100531. 2. Viscusi E, Minkowitz H, Winkle P, Ramamoorthy S, Hu J, Singla N. HTX-011 reduced pain intensity and opioid consumption versus bupivacaine HCl in herniorrhaphy: results from the Phase 3 EPOCH 2 study. Hernia. 2019;23(6):1071-1080. doi:10.1007/s10029-019-02023-6. 3. ZYNRELEF [package insert]. San Diego, CA: Heron Therapeutics, Inc; 2024. 4. Lachiewicz PF, Lee G-C, Pollak R, Leiman D, Hu J, Sah A. HTX-011 reduced pain and opioid use after primary total knee arthroplasty: results of a randomized Phase 2b trial. J Arthroplasty. 2020;35(10):2843-2851. doi:10.1016/j.arth.2020.05.044. 5. Ottoboni T, Quart B, Pawasauskas J, Dasta JF, Pollak RA, Viscusi ER. Mechanism of action of HTX-011: a novel, extended-release, dual-acting local anesthetic formulation for postoperative pain. Reg Anesth Pain Med. 2020;45(2):117-123. doi:10.1136/rapm-2019-100714. 6. Minkowitz H, Soto R, Fanikos J, et al. Opioid-free recovery after hernia repair with HTX-011 as the foundation of a non-opioid, multimodal analgesia regimen in a real-world setting: a randomized, open-label study. Pain Ther. 2021;10(2):1295-1308. doi:10.1007/s40122-021-00289-2. 7. Berde CB, Strichartz GR. Local anesthetics. In: Miller RD, Cohen NH, Eriksson LI, Fleisher LA, Wiener-Kronish JP, Young WL, eds. Miller’s Anesthesia. Vol 1. 8th ed. Philadelphia, PA: Saunders; 2015:1028-1054.e4. 8. Ali A, Sundberg M, Hansson U, Malmvik J, Flivik G. Doubtful effect of continuous intraarticular analgesia after total knee arthroplasty: a randomized, double-blind study of 200 patients. Acta Orthop. 2015;86(3):373-377. doi:10.3109/17453674.2014.991629. 9. Kim J, Burke SM, Kryzanski JT, et al. The role of liposomal bupivacaine in reduction of postoperative pain after transforaminal lumbar interbody fusion: a clinical study. World Neurosurg. 2016;91:460-467. doi:10.1016/j.wneu.2016.04.058. 10. Data on file. DRG physician survey. San Diego, CA: Heron Therapeutics Inc; 2017. 11. Exparel [package insert]. San Diego, CA: Pacira Pharmaceuticals Inc; 2021. 12. Becker DE, Reed KL. Essentials of local anesthetic pharmacology. Anesth Prog. 2006;53(3):98-109. doi:10.2344/0003-3006(2006)53[98:EOLAP]2.0.CO;2. 13. Fast Track, Breakthrough Therapy, Accelerated Approval, Priority Review. US Food and Drug Administration website. https://www.fda.gov/ForPatients/Approvals/Fast/default.htm. Updated February 23, 2018. Accessed April 8, 2021.