ANAVIP crotalidae immune F(ab)2(equine) 12 mg/mL Injection, Powder, Lyophilized, For Solution
🆔 Identity & classification
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🏭 Manufacturer & labeler
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🩺 Clinical
Patient education
Supplement & herbal interactions
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🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
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IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.Inactive ingredient FAQ
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per mL | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data. | |
| Medicare drug plans payPart D · quarterly | No Part D plan price is available for this NDC in our data. | |
| Medicare Part B allowsASP · J0841 | No ASP payment limit on file for J0841 this quarter. | |
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🧾 Billing & reimbursement
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🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Anavip 12 mg/mLthis 66621-0790-02 | Rare | 1 vial | — | — | FDA listed | — |
Where does this data come from?
⏳ Availability & biosimilar status
Biologics have no small-molecule generics; biosimilar competition is tracked in the FDA Purple Book.
Why the date isn’t exact: Biosimilar timing can change because patents may be challenged, settled, licensed, added or removed, and litigation can move the real date earlier or later.
🛈 What do these terms mean?
- Biologic patent
- A patent the reference product’s maker has publicly listed. A biosimilar generally can’t launch until these expire — unless they’re invalidated or resolved in a settlement.
- Reference-product exclusivity
- A flat 12 years of FDA market protection from the biologic’s first licensure (the BPCIA). No biosimilar can be licensed before it ends, regardless of patents.
- Interchangeable exclusivity
- The first interchangeable biosimilar can earn a period as the only interchangeable version (pharmacists can substitute it without the prescriber).
- Earliest biosimilar (LOE)
- The latest of all the dates above — the soonest a biosimilar can realistically reach the market. Litigation and settlements can move it earlier.
Biologics have no small-molecule “generics” — competition comes from FDA-licensed biosimilars, tracked in the FDA Purple Book.
| Code | What it grants | Expires |
|---|---|---|
| RefProduct | Reference-product exclusivity (12-year, BPCIA) — no biosimilar can be licensed before this date | May 6, 2027 |
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📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 66621-0790-02 You're viewing this | 1 VIAL in 1 CARTON (66621-0790-2) / 10 mL in 1 VIAL (66621-0790-1) | 2015-05-06 | Active |
🧭 About this NDC listing & data coverage
What data is (and isn’t) available for this NDC — tap to expand
| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | ✓ Available |
| Inactive ingredients (structured) | — Not published for this NDC The labeler did not submit a structured excipient list, or no SPL is available. |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | ✓ Available |
| HCPCS J-code billing crosswalk | ✓ Available |
| Medicaid utilization (CMS SDUD) | — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold. |
Questions about this listing
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📄 Full FDA label FDA SPL
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE Anavip [Crotalidae Immune F(ab') 2 (Equine)] is an equine-derived antivenin indicated for the management of adult and pediatric patients with North American rattlesnake envenomation.( 1 ) Anavip [Crotalidae Immune F(ab') 2 (Equine)] is an equine-derived antivenin indicated for the management of adults and pediatric patients with North American rattlesnake envenomation.
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION Intravenous use only. Dose No. of Vials Infusion Rate Initial Dose 10 vials Infuse intravenously over 60 minutes.( 2 ) Additional dose(s) to achieve initial control 10 vial (as needed) Infuse intravenously over 60 minutes.( 2 ) Observation and late dosing 4 vials Infuse intravenously over 60 minutes.( 2 ) Initiate administration as soon as possible after rattlesnake bite in patients who develop signs of envenomation (e.g., local injury, coagulation abnormality, or systemic signs of envenomation).
Monitor patients in a health care setting at least 18 hours following initial control of signs and symptoms. Re-emerging symptoms including coagulapathies may be suppressed with additional 4 vial doses of Anavip as needed.( 2 ) Reconstitute each vial with 10 milliliters (mL) of sterile normal saline. ( 2 ) Combine and further dilute to a total of 250 mL with sterile normal saline.( 2 ) For Intravenous use only.
Administer Anavip as soon as possible after rattlesnake bite in patients who develop any signs of envenomation (e.g., local injury, coagulation abnormality, or systemic signs of envenomation). The amount of antivenin required to treat a snake bitten patient is highly variable owing in part to the venom burden, the potency of the venom and the time to health care presentation. Use supportive measures to treat certain manifestations of rattlesnake envenomation, such as pain, swelling, hypotension, and wound infection.
Contact the local poison control centers for additional individual treatment advice. Prior to initiating treatment perform laboratory analyses, including complete blood count, platelet count, PT, PTT, serum fibrinogen level and routine serum chemistries. Repeat testing at regular intervals to gauge response to therapy and anticipate additional dosing.
Initial Dose: 10 vials The initial dose of Anavip is 10 vials. Reconstitute the contents of each vial with 10 milliliters (mL) of sterile normal saline. Reconstitution time should be less than one minute when using continuous gentle swirling.
Inspect the solution visually for particulate matter and discoloration prior to administration. The solution is expected to be clear to yellow/green and opalescent. Do not use if otherwise discolored or turbid.
Combine the contents of the reconstituted vials promptly and further dilute to a total volume of 250 mL with sterile normal saline. Fluid volumes may need to be adjusted for very small children or infants. Poison Control Centers are a helpful resource for individual treatment advice.
Infuse intravenously over 60 minutes. For the first 10 minutes infuse at a 25-50 mL/hour rate, carefully monitoring for any allergic reactions, including an anaphylactic reactions. Discontinue the infusion if any allergic reaction occurs and institute appropriate emergency treatment.
Reassess the risk to benefit before continuing the infusion. If no reactions occur, the infusion rate may be increased to the full 250 mL/hour rate until completion. If there is any allergic reaction at any time, stop the infusion, treat accordingly, and reassess the need to continue Anavip.
Following the completion of infusion, monitor the patient for at least 60 minutes for any allergic reaction and to determine that local signs of envenomation are not progressing (leading edge of local injury not progressing), systemic symptoms are resolved and coagulation parameters have normalized or are trending toward normal. Discard partially or unused reconstituted and diluted product. Additional Dosing to Achieve Initial Control Administer additional 10 vial doses if needed to arrest the progressive symptoms and repeat every hour.
There is no known maximum dose. Repeat above steps for initial dose as many times as needed until local signs of envenomation are not progressing, systemic symptoms are resolved and coagulation parameters have normalized or are trending toward normal. Prepare as described above for initial dose.
Once initial control h…
💊 Dosage Forms and Strengths ▾
Each vial contains a sterile, lyophilized preparation containing not more than 120 milligrams total protein and not less than the indicated number of mouse LD 50 neutralizing units ( 3 ): Snake Species Used for Standardization Minimum Mouse LD 50 Units per Vial Bothrops asper 780 Crotalus durissus 790
3 DOSAGE FORMS AND STRENGTHS Anavip is supplied as a sterile, lyophilized powder. Each vial contains not more than 120 milligrams (mg) total protein and not less than the indicated number of mouse LD 50 neutralizing units: Snake Species Used for Standardization Minimum Mouse LD 50 Units per Vial Bothrops asper 780 Crotalus durissus 790
⛔ Contraindications ▾
None.( 4 )
4 CONTRAINDICATIONS None.
⚠️ Warnings and Cautions ▾
Anavip may cause allergic reactions Patients with known allergies to horse protein are particularly at risk for an anaphylactic reaction. If signs or symptoms of anaphylaxis or hypersensitivity reactions (including urticaria, rash, tightness of the chest, wheezing, hypertension) occur, discontinue immediately and institute appropriate treatment. Monitor patients with follow-up visits for signs and symptoms of delayed allergic reactions or serum sickness (rash, fever, myalgia, arthralgia, pruritus, urticarial rash) and treat appropriately if necessary.( 5.1 ) Anavip is made from equine plasma and may contain infectious agents, e.g. viruses.( 5.2 ) Localized reactions and generalized myalgias have been reported with the use of cresol as an injectable excipient.( 5.3 )
5 WARNINGS AND PRECAUTIONS
🤒 Adverse Reactions ▾
The most common adverse reactions (>2%)in the clinical studies were: pruritus, nausea, rash, arthralgia, peripheral edema, myalgias, headache, pain in extremity, vomiting and erythema.( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Rare Disease Therapeutics, Inc., at 1 877-851-1902, or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
6 ADVERSE REACTIONS The most common adverse reactions observed in more than 2 percent of patients in the clinical trials for Anavip were: pruritus, nausea, rash, arthralgia, peripheral edema, erythema, headache, myalgia, pain in extremity, and vomiting.
👥 Use in Specific Populations ▾
Pregnancy: No human or animal data. Use only if clearly needed.( 8.1 )
8 USE IN SPECIFIC POPULATIONS
🤰 Pregnancy ▾
8.1Pregnancy Pregnancy Category C: Animal reproduction studies have not been conducted with Anavip. It is also not known whether Anavip can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Anavip should be given to a pregnant woman only if clearly needed.
🧒 Pediatric Use ▾
8.4Pediatric Use Twenty-four percent (21/86) of patients studied in clinical trials were 16 years of age or younger (6 patients were 2 years of age to 5 years of age, 15 patients ranged from at least 5 years of age to 16 years of age). None of the pediatric patients in the phase 3 study experienced a recurrent coagulopathic effect. All adverse reactions in the pediatric patients were non-serious.
The most frequent adverse reactions among pediatric patients were nausea and vomiting, itching and fever. Thus, the safety and efficacy in the pediatric population was not different from adults.
🧓 Geriatric Use ▾
8.5Geriatric Use Over 9 percent (8/86) of patients studied in clinical trials were over 65 years of age. The efficacy of Anavip in the geriatric population appears comparable to the overall population.
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Anavip contains venom-specific F(ab') 2 fragments of immunoglobulin G (IgG) that bind and neutralize venom toxins, facilitating redistribution away from target tissues and elimination from the body. 1,2
12.3Pharmacokinetics Fourteen healthy volunteers each received one vial of intravenous (IV) doses (one vial = 81.86 mg) of an antivenin comparable to Anavip both in composition and manufacturing. On the first day of antivenin administration, blood samples were collected from all subjects at 16 specific time points: 0 (prior to drug infusion), 5, 10, 20, 30, 45, 60, 120, and 480 minutes after drug infusion. Additional samples were drawn just prior to discharge (Day 1), and on days 3, 5, 7, 9, 11, and 21.
A two-compartment model best described the concentration-time data. The pharmacokinetic parameters of the antivenin are summarized in Table 2. Table 2.
Pharmacokinetic Parameters of Anavip Antivenin Following a Single IV Dose to Healthy Volunteers (n=13) Units Mean SD Area under plasma concentration vs time curve AUC 0-∞ (µg•h/mL) 4144 670 Steady-state volume of distribution Vss (L) 3.3
0.9Mean residence time MRT (h) 157 40 Elimination half-life Beta-HL (h) 133 53 Total Clearance CL (mL/h) 22 7
🧬 Mechanism of Action ▾
12.1Mechanism of Action Anavip contains venom-specific F(ab') 2 fragments of immunoglobulin G (IgG) that bind and neutralize venom toxins, facilitating redistribution away from target tissues and elimination from the body. 1,2
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING Anavip is supplied as a sterile lyophilized preparation in a single-use vial. When reconstituted with 10 mL of 0.9% NaCl solution, each vial contains not more than 12 mg per mL of protein, and will neutralize not less 780 times the LD 50 of Bothrops asper venom and 790 times the LD 50 of Crotalus durissus venom in a mouse neutralization assay. Each box contains 1 vial of Anavip.
NDC 66621-0790-1 Store at room temperature (up to 25 ºC (77 ºF)). Brief temperature excursions are permitted up to 40 ºC (104ºF). DO NOT FREEZE.
Discard partially used vials.
📋 Description ▾
11 DESCRIPTION Anavip [Crotalidae Immune F(ab') 2 (Equine)] is a sterile, lyophilized, polyvalent preparation of equine immunoglobulin F(ab') 2 fragments, manufactured from plasma of horses immunized with venom of Bothrops asper and Crotalus durissus . The product is obtained by pepsin digestion of horse plasma to remove the F c portion of immunoglobulin, followed by fractionation and purification steps. The F(ab') 2 content is not less than 85%, F(ab') content is not more than 7%, and the product contains less than 5% intact immunoglobulin.
Each vial of Anavip contains 25.2-56.8 mg of sodium chloride, 18.2 - 85.8 mg of sucrose, and 16.2-51.8 mg of glycine as stabilizers. Trace amounts of pepsin (≤160 ng/vial), cresol (≤0.99 mg/vial), borates (≤1 mg/vial) and sulfates (≤1.7 mg/vial) may be present from the manufacturing process. Each vial contains no more than 120 mg of protein and will be neutralize not less than 780 times the LD 50 of Bothrops asper venom and 790 times the LD 50 of Crotalus durissus venom in a mouse neutralization assay.
The manufacturing procedures that contribute to the reduction of risk of viral transmission include pepsin digestion, ammonium sulfate precipitation/heat treatment and nanofiltration.
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION Advise patients to contact their physician immediately if they experience unusual bruising or bleeding (e.g., nosebleeds, excessive bleeding after brushing teeth, the appearance of blood in stools or urine, excessive menstrual bleeding, petechiae, excessive bruising or persistent oozing from superficial injuries) after hospital discharge. 5 Advise patients to contact their physician immediately if they experience any signs and symptoms of delayed allergic reactions or serum sickness (e.g., rash, fever, myalgias, arthralgia, pruritus, urticaria) after hospital discharge.
4 Manufactured by: Instituto Bioclon S.A. de C.V. Mexico D.F., Mexico www.bioclon.com.mx Manufactured for: Rare Disease Therapeutics, Inc. 2550 Meridian Blvd., Suite 150 Franklin, TN 37067 www.raretx.com Distributed by: AnovoRx Distribution, LLC 1710 North Shelby Oaks Drive Suite 6 Memphis, TN 38134 U.S.
License No. 1900 RDT Part No. Anavip PI001 PACKAGE LABEL