chances antivenin (Crotalidae) polyvalent Generic Name: antivenin (Crotalidae) polyvalent (AN tye VEN in (kroe TAL i dee) POL ee VAY lent) Brand Name: Anavip, CroFab, Antivenin Polyvalent Overview Side Effects Dosage Professional Interactions More Pregnancy Warnings User Reviews Support Group Q & A What is antivenin (Crotalidae) polyvalent? Crotalidae antivenin is an anti-venom used to treat a person who has been bitten by a poisonous snake such as a rattlesnake or Water Moccasin. Antivenin (Crotalidae) polyvalent may also be used for purposes not listed in this medication guide. Slideshow Sexual Health Q+A: Your Questions Answered What is the most important information I should know about antivenin (Crotalidae) polyvalent? If possible before you receive this medicine, tell your doctor if you are allergic to any foods, animals, or other allergens. In an emergency situation it may not be possible before you are treated to tell your caregivers about your health conditions or if you are pregnant or breast feeding. Make sure any doctor caring for you afterward knows that you have received this medication. What should I discuss with my healthcare provider before receiving antivenin (Crotalidae) polyvalent? If possible before you receive Crotalidae antivenin, tell your doctor if you allergic to any foods, animals, or other allergens. Before treating you with this medicine, your caregivers should know if you are allergic to papaya, papain, pineapples, sheep, horses, dust mites, or latex. Also tell your doctor if you have: a bleeding or blood clotting disorder such as hemophilia; cancer; congestive heart failure; or an overactive thyroid. Crotalidae antivenin is made from the blood or plasma of healthy horses or sheep. Animal blood or plasma may contain viruses and other infectious agents. Blood and plasma are tested and treated to reduce the risk of it containing infectious agents, but there is still a small possibility it could transmit disease. Talk with your doctor about the risks and benefits of using this medication. It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant. It is not known whether Crotalidae antivenin passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby. In an emergency situation it may not be possible to tell your caregivers if you are pregnant or breast-feeding. Make sure any doctor caring for your pregnancy or your baby knows you have received this medicine. How is antivenin (Crotalidae) polyvalent given? Treatment with Crotalidae antivenin should be started as soon as possible after the first appearance of symptoms of a snake bite (fang marks in the skin with swelling or redness and pain, blurred vision, sweating, increased salivation, vomiting, uncontrolled bleeding, trouble breathing, weakness, loss of muscle control, or numbness in the face or body). Crotalidae antivenin is injected into a vein through an IV. A healthcare provider will give you this injection. Crotalidae antivenin must be given slowly, and the IV infusion can take at least 60 minutes to complete. This medicine is most effective if given within 6 hours after the snakebite occurred. You will be watched closely for up to 60 minutes after receiving Crotalidae antivenin, to make sure this medicine is helping your condition. You may need to receive additional doses if your condition does not improve after the first dose. Once your symptoms are under control, you may be given more doses every 6 hours for up to 18 hours or longer. Your doctor will determine how long to treat you with Crotalidae antivenin. Venom from a snake bite can increase your risk of bleeding, which can be severe or life-threatening. Contact your doctor or seek emergency medical attention if you have any bleeding that will not stop. Your doctor will need to check your progress for up to 2 weeks or longer after you are treated with Crotalidae antivenin. You may need to be re-treated with this medicine, or with other drugs that can help your blood to clot. What happens if I miss a dose? Because you will receive Crotalidae antivenin in a clinical setting, you are not likely to miss a dose. What happens if I overdose? Since this medicine is given by a healthcare professional in a medical setting, an overdose is unlikely to occur. What should I avoid after receiving antivenin (Crotalidae) polyvalent? After a snakebite, you should avoid activities that may increase your risk of bleeding or injury. Use extra care to prevent bleeding while shaving or brushing your teeth. Antivenin (Crotalidae) polyvalent side effects Get emergency medical help if you have signs of an allergic reaction: hives, itching, redness; wheezing, trouble breathing; feeling light-headed; swelling of your face, lips, tongue, or throat. Some side effects may occur during the injection. Tell your caregiver right away if you feel feverish or nauseated, or if you have low back pain or trouble breathing. Call your doctor at once if you have: easy bruising, unusual bleeding (nosebleeds, bleeding gums, bleeding from an injury); purple or red pinpoint spots under your skin; fever, swollen glands, rash or itching, joint pain, or general ill feeling; heavy menstrual bleeding; or itching, rash, or skin redness several days after you were treated with Crotalidae antivenin. Common side effects may include: itching; rash; nausea; or back pain. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. Side Effects (complete list) Antivenin (Crotalidae) polyvalent dosing information Usual Adult Dose for Venomous Snake Bite: Initial dose: 4 to 6 vials, IV, over 60 minutes: at 25 to 50 mL/hour the first 10 minutes - if no allergic reaction, may increase rate to 250 mL/hour Continue administering 4 to 6 vials, IV, over 60 minutes, every 6 hours for up to 18 hours, until initial control of envenomation is achieved Maintenance dose (after initial envenomation control is achieved): 2 vials, IV, every 6 hours for up to 18 hours (3 doses); additional 2 vial doses may be given as deemed necessary based on the patient's clinical course Comments: -Administer as soon as possible after snakebite in patients with signs of progressive envenomation (e.g. worsening local injury, coagulation abnormality, or systemic envenomation signs). -Early use (within 6 hours of snakebite) is advised to prevent clinical deterioration and systemic coagulation abnormalities. -Closely monitor patients for allergic reactions during the infusion. -Observe the patient for up to 1 hour after the first dose to determine if initial control has been achieved. Usual Pediatric Dose for Venomous Snake Bite: Initial dose: 4 to 6 vials, IV, over 60 minutes: at 25 to 50 mL/hour the first 10 minutes - if no allergic reaction, may increase rate to 250 mL/hour Continue administering 4 to 6 vials, IV, over 60 minutes, every 6 hours for up to 18 hours, until initial control of envenomation is achieved Maintenance dose (after initial envenomation control is achieved): 2 vials, IV, every 6 hours for up to 18 hours (3 doses); additional 2 vial doses may be given as deemed necessary based on the patient's clinical course Comments: -Administer as soon as possible after snakebite in patients with signs of progressive envenomation (e.g. worsening local injury, coagulation abnormality, or systemic envenomation signs). -Early use (within 6 hours of snakebite) is advised to prevent clinical deterioration and systemic coagulation abnormalities. -Closely monitor patients for allergic reactions during the infusion. -Observe the patient for up to 1 hour after the first dose to determine if initial control has been achieved. What other drugs will affect antivenin (Crotalidae) polyvalent? Other drugs may interact with antivenin (Crotalidae) polyvalent, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using. Next Side Effects Print this page Add to My Med List More about antivenin (crotalidae) polyvalent Side Effects During Pregnancy Dosage Information Drug Interactions Support Group En Español 0 Reviews Add your own review/rating Drug class: antitoxins and antivenins Consumer resources Crotalidae Polyvalent Immune FAB (Ovine) Antivenin (crotalidae) polyvalent immune fab Intravenous (Advanced Reading) Crotalidae immune f(ab)2 (equine) Intravenous (Advanced Reading) Other brands: CroFab , Anavip Professional resources Crotalidae Immune F(ab')2 (Equine) (Wolters Kluwer) Crotalidae Polyvalent Immune FAB (Ovine) (Wolters Kluwer) Related treatment guides Venomous Snake Bite Where can I get more information? Your doctor or pharmacist can provide more information about antivenin (Crotalidae) polyvalent. Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed. Disclaimer: Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist. Copyright 1996-2012 Cerner Multum, Inc. Version: 1.01. Last reviewed: July 14, 2016 Date modified: December 03, 2017} Drug Status Rx Availability Prescription only C Pregnancy Category Risk cannot be ruled out N/A CSA Schedule Not a controlled drug Drug Class Antitoxins and antivenins Related Drugs Venomous Snake Bite CroFab , Anavip , More... 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