Snakebite First Aid in India: Why a Tourniquet Actually Makes the Venom Spread Faster

A tourniquet tied above a snakebite does not trap venom at the wound. The lymphatic system, not the bloodstream, carries most snake venom in the first minutes after a bite. A tight band does nothing to lymphatic flow. What it does do is cut off arterial blood to the limb below it, concentrating whatever venom is already there, starving the tissue of oxygen, and setting up the conditions for amputation, before the person has even reached a hospital. A 2020 study published in The Lancet estimated that India accounts for nearly 1.2 million snakebite deaths over a 20-year period, more than any other country. The researchers found that delays caused by first-aid errors, including tourniquet application and traditional remedies, were a significant driver of preventable deaths.
The single most effective action after a snakebite is also the least dramatic: stop moving. Venom travels through the lymphatic system, and lymphatic flow is driven almost entirely by muscle movement. Keep the bitten limb as still as possible and position it at or just below the level of the heart. If the bite is on a hand or forearm, a makeshift splint from a stick and cloth works. Remove rings, bangles, and anything tight near the bite before swelling begins, swelling with a ring on becomes a surgical problem.
Do not cut the wound. Do not try to suck out venom. The cut-and-suck method, still practiced in many rural areas, introduces bacteria, accelerates local venom absorption through the oral mucosa, and removes a negligible amount of venom. It has no clinical support.
Do not give aspirin or ibuprofen. Russell's viper venom, one of the Big Four species responsible for the majority of serious bites in India, is hemotoxic, meaning it disrupts blood clotting. Any drug that further impairs clotting can turn internal bleeding fatal.

Emergency guidelines recommend pressure immobilization bandaging for neurotoxic bites: those from cobras and kraits, which attack the nervous system. The technique involves wrapping the entire limb firmly (not tightly) with a crepe bandage, then immobilizing it with a splint, slowing lymphatic drainage and buying time to reach antivenom.
For cytotoxic and hemotoxic bites, Russell's viper and saw-scaled viper, pressure bandaging is actively harmful. These venoms cause severe local tissue death, and compression accelerates that destruction. The problem in a field situation is that most people cannot identify the snake. If the snake is dead or safely visible and identifiable as a cobra or krait, apply pressure immobilization. If uncertain, immobilize without compression and move fast.

Polyvalent anti-snake venom, manufactured in India by institutions including Haffkine Bio-Pharmaceutical Corporation in Mumbai and VINS Bioproducts in Hyderabad, covers all four of the major Indian species. It must be administered intravenously at a medical facility. No home remedy, herbal preparation, or traditional practice substitutes for it. The antivenom works by binding free venom molecules in the bloodstream before they reach target tissues. The earlier it is given, the less tissue destruction and organ damage it has to reverse.
Government district hospitals and primary health centres are required to stock polyvalent antivenom under national guidelines. In practice, supply gaps exist in some states. If the nearest facility does not have stock, ask staff to call ahead to the next hospital before you leave, do not wait at an empty facility.

Note the time of the bite. Note whether the person felt immediate burning pain (more consistent with viper bites) or numbness and drooping eyelids (consistent with krait or cobra). Note whether the snake had a triangular head, a hood, or banding. None of this is a diagnosis, but it helps the treating physician decide whether to prioritize antivenom dosing for neurotoxicity or for coagulopathy, and how aggressively to monitor for renal failure, which Russell's viper venom causes in a significant proportion of cases.
The bite itself is rarely the last word. Venom's damage unfolds over hours. A person who feels fine at the thirty-minute mark can deteriorate sharply at hour three. Stay at the hospital.
The hardest thing about snakebite treatment in India is that the correct response asks you to do less than instinct demands. Every intervention that feels like action, the tourniquet, the cut, the sucking, the herb paste, makes the outcome worse. The immobilized limb and the calm walk to the vehicle are the treatment. The antivenom does the rest.