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Antivenin (Crotalidae) polyvalent.

Generic name: Antivenin (Crotalidae) Polyvalent (AN Tye VEN in (kroe TAL in) PO ee VAY lent)

Brand names: Anavip (equine), Anavip CroFab, Antivenin Polyvalent, and CroFab (ovine)
Formulation for dosage: intravenous powder for injection
Class of drugs: antitoxins and antivenins

What is Antivenin (Crotalidae)?

Crotalidae antivenin is a venom-fighting substance that can be used to treat someone who was bitten by poisonous snakes, such as rattlesnake water moccasin.The antivenin (Crotalidae) polyvalent can be utilised for other purposes that are not mentioned in this guide.

Side effects of Antivenin (Crotalidae)

Seek medical attention immediately. If you notice symptoms that indicate an allergy, such as hives, itching or redness, wheezing, breathing difficulties, and feeling lightheaded, You may also experience swelling of your lips, face, and throat.Certain side effects can occur after the injection. Contact your physician immediately when you experience a fever, feel ill, or suffer from lower back discomfort or breathing difficulties.

The antivenin (Crotalidae) polyvalent can result in serious side effects. Contact your physician immediately if you suffer from:

  • Easily bleeding, unusual bruises (nosebleeds, bleeding gums, bleeding noses, blood resulting from injuries);
  • Red or purple pinpoints beneath your skin
  • Fever and swollen glands. Itching or itching joint discomfort or general feeling
  • Excessive menstrual bleeding
  • Itching, rash, or redness for a few days following the treatment for itching, rash, or skin redness a few days after treatment with crotalidae antivenin.

Common negative side effects of the antivenin (crotalidae) polyvalents could include:

  • Itching;
  • Rash;
  • Nausea;
  • Back in pain.

This list does not encompass every possible side effect. Other side effects could occur. Consult a medical provider regarding potential adverse reactions. Additionally, call 1-800-FDA-1088 to report them immediately.

Similar or related drugs

CroFab

Warnings

If it is possible prior to receiving the antivenin (Crotalidae) polyvalently, you should inform your physician if you're allergic to any food animals, food items, or other allergens.In a situation of emergency, it might not be feasible prior to being treated to inform your medical professionals about any health issues or if you're nursing or pregnant. It is important that the doctor caring for you following treatment knows you've received this medication.

Before you take this drug

If you can, before receiving Crotalidae antivenin, inform your doctor if there is an allergy to any food items, animals, or other allergens. Before administering this medication, your medical professional must know if you're sensitive to papaya or papain, sheep, pineapples, horses, dust mites, or latex.

Inform your doctor if you suffer from:

  • A blood clotting or bleeding disorder, for example, haemophilia;
  • Cancer;
  • Congestive heart failure;
  • An overactive thyroid.

Crotalidae antivenin is derived from the plasma or blood of sheep or horses that are healthy. Plasma or blood from animals may contain viruses or other infective agents. Plasma and blood are tested and treated to lower the chance of containing infectious agents; however, there is a slight chance that they may carry diseases. Discuss with your physician the dangers and benefits of this treatment.It isn't clear if this medication will affect a newborn baby. Inform your doctor if you are expecting.It is unclear if Crotalidae antivenin gets into breast milk or if it is harmful to the nursing infant. Consult your physician if you are breastfeeding a baby.In an emergency, it might not be feasible to notify your carers that you are nursing or pregnant. Be sure that any doctor who cares for the baby or your pregnancy has been informed that you've taken this medication.

How to take Antivenin (Crotalidae)?

The treatment with Crotalidae antivenin must be initiated at the earliest opportunity following the first onset of signs of a bite from a snake (fang marks on the skin that cause swelling or redness, poor vision, sweating, an increase in the amount of saliva, vomiting, blood loss that is not controlled, difficulty breathing, weakness in muscle control, or a feeling of numbness on the body or face).Crotalidae antivenin can be injected directly into veins via an IV. A healthcare professional will administer this injection. Crotalidae antivenin should be administered slowly. The IV infusion may take at least 60 minutes to be completed.The antivenin (Crotalidae) polyvalent treatment is most effective when administered within six hours of the time that the snakebite happened.You will be monitored closely for as long as 60 minutes after receiving Crotalidae antivenin to ensure that this medication helps your condition.It is possible that you will require additional doses if the symptoms do not improve following the first dose. When your symptoms are at a minimum, you can be prescribed more doses every six hours for as long as 18 hours or more. Your physician will decide how long you will be treated with Crotalidae antivenin.The venom of a snake bite could increase the chances of bleeding, which could be life-threatening or even fatal. Contact your doctor or seek medical attention in an emergency when you experience bleeding that isn't stopping.Your doctor should monitor your performance for 2 weeks or more after the treatment with antivenin from Crotalidae. It is possible that you will have to undergo a second treatment with this medication or other medications that may help your blood clot.

Details on dosage

Usual Adult Dose for Venomous Snake Bite:

Initial dose of up to six vials IV, for 60 minutes: between 25 and 50 mL/hour in the first 10 minutes. If there is no reaction to the medication, increase the dose to 250 mL/hour.
Continue to administer up to six vials of IV over a period of 60 minutes, every six hours for up to 24 hours, until the initial control of envenomation has been achieved.
Maintenance dose (after the initial control of envenomation has been attained) 2 vials IV every 6 hours for as long as 18 hours (3 doses) The additional doses of 2 vials can be administered as required according to the patient's current clinical treatment.
Comments:
Take action as soon as is possible after a patient has been bitten by a snake. indications of envenomation progressing (e.g. aggravation of the local injury (bleeding, coagulation abnormality, or symptoms of systemic envenomation).
Early use (within six hours of the first bite) is recommended to prevent the clinical signs of deterioration as well as systemic coagulation disorders.
Monitor patients closely in the event of any allergic reaction throughout the course of the infusion.
Watch the patient for a minimum of 1 hour after the initial dose to determine whether initial control was successfully achieved.

Usual Paediatric Dose for Venomous Snake Bite:

Initial dose: 4–6 vials IV, for 60 minutes: 25 to 50 mL/hour in the first 10 minutes. If there is no reaction to the medication, increase the dose to 250 mL/hour.
Continue to administer up to six vials IV for 60 minutes every 6 hours for up to 18 hours, until the first elimination of envenomation is accomplished.
Maintenance dose (after the initial control of envenomation has been successfully achieved) 2 vials IV every 6 hours for at least 18 hours (3 doses) The additional doses of 2 vials can be administered if deemed necessary according to the patient's current clinical treatment.
Comments:
Take action as soon as is possible after a patient has been bitten by a snake. indications of envenomation progressing (e.g. aggravation of the local injury (bleeding, coagulation abnormality, or symptoms of systemic envenomation).
Early use (within six hours of the bite) is recommended to avoid the clinical signs of deterioration as well as abnormalities in the coagulation system.
Closely monitor patients for reactions to allergens during the infusion.
Watch the patient for at least one hour following the first dose to determine if the initial control is attained.

What happens if I miss the dose?

Because you'll receive Crotalidae, an antivenin, in a controlled setting, you're less likely to miss the dose.

What happens if I overdose?

Because antivenin (Crotalidae) is given by a medical expert in a medical environment, it is highly unlikely for an overdose to be observed.

What should be avoided?

Following a bite from a snake You should stay clear of activities that increase the chances of injury or bleeding. Make sure to take extra precautions to avoid bleeding while cleaning your teeth or shaving.

Interaction with other drug

Other medications may be incompatible with antivenin (Crotalidae) polyvalently, such as medications that are prescribed and available over the counter, vitamins, and herbal products. Inform all of your health professionals about any medications you take in the present and any medication that you decide to stop or modify your use of.