{"id":1295,"date":"2026-06-08T15:35:42","date_gmt":"2026-06-08T15:35:42","guid":{"rendered":"https:\/\/charlotterelocationguide.com\/?p=1295"},"modified":"2026-06-08T15:35:42","modified_gmt":"2026-06-08T15:35:42","slug":"do-you-need-antivenom-after-a-copperhead-snake-bite-an-nc-doctor-explains","status":"publish","type":"post","link":"https:\/\/charlotterelocationguide.com\/?p=1295","title":{"rendered":"Do you need antivenom after a copperhead snake bite? An NC doctor explains"},"content":{"rendered":"

AI-generated summary reviewed by our newsroom.<\/p>\n

Read our AI Policy.<\/a><\/p>\n

North Carolina has a great many copperheads, and as a result, many copperhead bites. They vary in severity, but some require antivenom.<\/p>\n

Read more After a year of triumphs, we shouldn\u2019t call NC schools and students failures | Opinion<\/a><\/p>\n

Copperheads are crotalids, or pit vipers. Other pit vipers include rattlesnakes and cottonmouths. Pit viper envenomations may need to be treated with antivenom, depending on the severity of the bite.<\/p>\n

Copperhead bites can cause serious symptoms, including difficulty breathing. In severe cases, breathing can stop. Rapid heart rate, weak pulse and low blood pressure are also potential effects, according to North Carolina Blue Cross and Blue Shield.<\/a><\/p>\n

WakeMed Emergency Physician Benjamin German<\/a> said antivenom options have continued to improve.<\/p>\n

\u201cEssentially, antivenom is antibodies that are made to neutralize the different components of snake venom,\u201d German said. \u201cAntivenom has been around for over 100 years in various forms, and it\u2019s gotten better with time.\u201d<\/p>\n

A starting dose of the crotalid antivenom CroFab is 4-6 vials. More than that may be required, depending on the severity of the bite.<\/p>\n

\u201cEvery bite is a little different, because we don\u2019t know how much phenom the snake injects, because there\u2019s so many variables there,\u201d German said. \u201cHow much venom the snake has available, how much enters the tissue when it bites, the baseline health of the snake, or even the agitation level of the snake. In other words, if a snake is really irritated when it bites somebody, it can get more venom.\u201d<\/p>\n

Doctors follow a clinical protocol to determine how much antivenom is needed. More vials will be given if symptoms continue to worsen.<\/p>\n

\u201cYou can\u2019t give the dose and say, \u2018okay, for this bite I\u2019m only going to give four vials, and that\u2019s going to be it,\u2019 because we don\u2019t know how much venom we\u2019re trying to neutralize,\u201d German said.<\/p>\n

Read more DWI charge dismissed against NC mom who vanished 24 years ago<\/a><\/p>\n

After antivenom is given, patients are monitored in the hospital.<\/p>\n

\u201cTypically, they get admitted to the hospital overnight because they\u2019re probably going to need some pain medicine, they\u2019re going to need that limb elevated, which helps with swelling, and it needs to be monitored,\u201d German said. \u201cThere are cases where maybe four hours later it starts worsening again, maybe there was some venom stuck in the tissue that the antivenom couldn\u2019t get to.\u201d<\/p>\n

There are two FDA approved crotalid antivenom options: CroFab and AnaVip.<\/p>\n

CroFab is derived from sheep. It is the \u201conly antivenom derived from native US pit vipers to treat envenomations from all species of North American pit vipers,\u201d according to the CroFab website.<\/a><\/p>\n

AnaVip is derived from horses, according to the AnaVip website.<\/a><\/p>\n

\u201cYou take snake venom, you immunize the host animal with it \u2014 either sheep or horses \u2014 with small amounts over a period of time,\u201d German said. \u201cThat host animal starts making large numbers of antibodies against the venom, then you draw out the animal\u2019s blood and purify those antibodies.\u201d<\/p>\n

Some people have allergic reactions to crotalid antivenom. German said that newer antivenoms have less allergic reaction responses. But alpha-gal syndrome, a tick-born allergy to red meat, has been known to trigger allergic reactions to antivenom in patient.<\/p>\n

\u201cThis applies for not just snake bites, but it\u2019s very important to let your doctor know that you have alpha gal, because there may be an increased risk of allergic reaction with antivenom,\u201d German said. The Charlotte Observer recently covered alpha-gal in North Carolina.<\/a><\/p>\n

The Charlotte Observer recently covered the cost of antivenom at North Carolina hospitals.<\/a> Price per vial ranges from $9,000 to $14,000, but insurance nearly always covers antivenom and snake bite care.<\/p>\n

Hospitals may offer financial assistance programs for those who are uninsured.<\/p>\n

Questions about life in North Carolina? Or have a tip or story idea you\u2019d like to share? The service journalism teams at The News & Observer and The Charlotte Observer want to hear from you.<\/p>\n

Read more Eleven \u2018violent gun crimes\u2019 in two North Carolina counties are related, ATF says<\/a><\/p>\n

You can submit your question by filling out this form<\/a><\/b>. <\/p>\n","protected":false},"excerpt":{"rendered":"

An emergency physician explains crotalid antivenom dosing, hospital care after copperhead snake bite, potential allergic reactions, what to expect in treatment.<\/p>\n","protected":false},"author":1,"featured_media":1294,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-1295","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-read-todays-edition"],"yoast_head":"\nDo you need antivenom after a copperhead snake bite? 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