Animal venom has been turned into life-saving medicines, surgical tools, and even skincare ingredients. At least 10 FDA-approved drugs come directly from venom peptides found in snakes, cone snails, and lizards, with more in clinical trials. Beyond pharmaceuticals, venom plays a role in antivenom production, cancer research, cosmetics, and has a history stretching back thousands of years as a hunting tool.
Blood Pressure and Heart Medications
The most widely used venom-derived drug in history is captopril, a blood pressure medication developed from a peptide in the venom of the Brazilian pit viper (Bothrops jararaca). Approved by the FDA in 1981, it was the first in a now-massive class of drugs called ACE inhibitors, which relax blood vessels and lower blood pressure. If you or someone you know takes an ACE inhibitor for hypertension or heart failure, that entire drug category traces back to snake venom research.
Venom has also produced drugs that prevent dangerous blood clots. Two medications, tirofiban and eptifibatide, were derived from the venoms of the saw-scaled viper and the Florida ground rattlesnake, respectively. Both work by blocking a receptor on platelets that normally lets them clump together, which makes them valuable during heart attacks and other acute coronary events. A fourth drug, batroxobin, comes from Brazilian lancehead snake venom and breaks down a key clotting protein called fibrinogen. It’s approved in several countries outside the United States for treating conditions like acute stroke and angina.
Pain Relief Without Opioids
One of the most remarkable venom applications comes from a tiny marine cone snail. Ziconotide, sold as Prialt, is a synthetic version of a peptide from the magician cone snail (Conus magus). The FDA approved it in 2004 for severe chronic pain, and it works through a mechanism completely different from opioids.
Pain signals travel along nerve fibers that need calcium channels to relay their message to the spinal cord. Ziconotide blocks a specific type of calcium channel at the point where pain fibers connect to spinal cord neurons. Even though the pain fibers still fire, the signal never reaches the brain because the drug shuts down transmission at that junction. This means it carries none of the hallmark risks of opioids: no respiratory depression, no physical dependence, and no withdrawal syndrome. Current guidelines now position it as a first-line option for both nerve pain and other chronic pain conditions, delivered directly into the fluid surrounding the spinal cord.
Diabetes Management
The Gila monster, a venomous lizard native to the American Southwest, produces a hormone in its saliva called exendin-4. This hormone closely mimics a human digestive hormone (GLP-1) that helps regulate blood sugar after meals. A synthetic version, exenatide, was approved by the FDA in 2005 as a treatment for type 2 diabetes. It became the foundation for the entire GLP-1 receptor agonist drug class, which has since expanded into some of the most prescribed medications in the world for diabetes and weight management.
Cancer Research
Scorpion venom contains a peptide called chlorotoxin that has an unusual property: it binds selectively to certain proteins found on the surface of brain tumor cells but largely ignores healthy tissue. Researchers have been exploring this peptide as a way to target glioblastoma, one of the most aggressive brain cancers. A phase I clinical trial at City of Hope used chlorotoxin to guide engineered immune cells (CAR T cells) directly to tumor tissue in patients with recurrent glioblastoma. While still experimental, the concept of using a venom-derived molecule as a “homing signal” for cancer therapies represents one of the more creative applications in oncology.
Making Antivenom
Paradoxically, the primary treatment for venomous snakebites is made from venom itself. Antivenom production starts by injecting small, carefully controlled doses of snake venom into large animals, typically horses, donkeys, sheep, or camels. Over weeks of repeated immunization, these animals develop antibodies against the venom’s toxic components. Plasma is then collected from the animals (with red blood cells returned), and the antibodies are purified and processed into a form that can be given intravenously to snakebite victims.
A standard polyvalent antivenom, designed to work against multiple snake species, usually incorporates venom from five or six different snakes during the immunization process. More advanced techniques fractionate the venoms first, removing proteins that trigger strong immune responses but aren’t actually toxic. This allows producers to immunize with up to 12 different venoms at once, creating broader-spectrum products. Researchers are also working on “universal” antivenoms that target the specific toxic enzymes shared across many viper species, which could dramatically simplify treatment in regions where dozens of dangerous species overlap.
The World Health Organization emphasizes that antivenom administered early not only saves lives but reduces tissue damage, shortens hospital stays, and speeds recovery. For bites from snakes with paralytic venom, patients may need assisted breathing with manual resuscitators or ventilators until the antivenom takes effect.
Cosmetics and Skincare
Bee venom has become a popular ingredient in anti-aging skincare, marketed as a natural alternative to injectable treatments. The venom contains a complex mix of peptides, enzymes, and bioactive compounds that show anti-inflammatory, antibacterial, and collagen-stimulating properties in lab studies.
In one clinical trial, 22 women aged 30 to 49 applied a facial serum containing 0.006% bee venom twice daily for 12 weeks. The concentrations used in commercial products are extremely low. Lab research suggests that a modified form of bee venom, with a specific inflammatory enzyme removed, may help repair UV-damaged skin cells and promote collagen production while reducing the enzymes that break down skin’s structural proteins. The science is still early compared to pharmaceutical applications, but bee venom products have found a sizable market in Korean and Western skincare.
Historical Use as Hunting Poison
Humans figured out how to weaponize natural toxins long before modern chemistry. Archaeologists analyzing residue from a site called Kruger Cave in South Africa identified a complex hunting poison recipe approximately 7,000 years old, containing cardiac glycosides (plant-derived toxins that disrupt the heart). Evidence of a related toxic compound on a wooden applicator from Border Cave, also in South Africa, pushes the timeline back to roughly 24,000 years ago. These weren’t simple smears of a single substance. They were deliberately crafted recipes combining multiple toxic ingredients, applied to arrow tips to make small projectiles lethal enough to bring down large game.
Laboratory Safety for Venom Work
Working with raw venom is genuinely dangerous, and facilities that extract and handle it follow strict protocols established by the WHO and institutional safety boards. Protective equipment includes safety glasses or face shields, nitrile gloves, face masks, and laboratory gowns. Assistants helping restrain snakes during venom extraction are required to wear puncture-resistant gloves, though many primary handlers avoid them due to reduced dexterity and opt for nitrile gloves instead.
Dried venom poses its own hazard because it can become airborne as fine particles and enter the body through the eyes, mucous membranes, or small cuts. Handling lyophilized venom requires a biological safety cabinet, and repeated low-level exposure can sensitize workers, making future contact increasingly dangerous. Every facility keeping venomous animals is expected to maintain clearly posted bite response procedures that staff rehearse regularly, stock species-appropriate antivenom on site, and have prearranged transport to a designated hospital. If venom contacts the eyes during extraction, immediate irrigation with large volumes of clean water is the first priority. Anyone bitten, scratched by a fang, or exposed to aerosolized dried venom gets transferred to a hospital for assessment, regardless of whether symptoms appear.