Chemicals and Drugs

Crotalid Venoms

Venoms from snakes of the subfamily Crotalinae or pit vipers, found mostly in the Americas. They include the rattlesnake, cottonmouth, fer-de-lance, bushmaster, and American copperhead. Their venoms contain nontoxic proteins, cardio-, hemo-, cyto-, and neurotoxins, and many enzymes, especially phospholipases A. Many of the toxins have been characterized.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Venoms from snakes of the subfamily Crotalinae or pit vipers, found mostly in the Americas. They include the rattlesnake, cottonmouth, fer-de-lance, bushmaster, and American copperhead. Their venoms contain nontoxic proteins, cardio-, hemo-, cyto-, and neurotoxins, and many enzymes, especially phospholipases A. Many of the toxins have been characterized.

MeSH Record

Classification

Broader headings

Narrower headings

Related Concepts

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MeSH Record

Synonyms

23 entry terms
  • Crotalid Venom
  • Crotalidae Venoms
  • Pit Viper Venom
  • Pit Viper Venoms
  • Venom, Crotalid
  • Venom, Pit Viper
  • Venoms, Crotalid
  • Venoms, Crotalidae
  • Venoms, Pit Viper
  • Viper Venom, Pit
  • Bothrops Venom
  • Crotactin
  • Crotalin
  • Crotaline Snake Venom
  • Crotalotoxin
  • Crotamin
  • Rattlesnake Venom
  • Rattlesnake Venoms
  • Snake Venom, Crotaline
  • Venom, Bothrops
  • Venom, Crotaline Snake
  • Venom, Rattlesnake
  • Venoms, Rattlesnake

MeSH Record

Aspects Covered

25 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, antagonists & inhibitors, biosynthesis, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, economics, enzymology, genetics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, poisoning, radiation effects, therapeutic use, toxicity, urine.

MeSH Record

Indexing Annotation

from pit vipers (rattlesnake, cottonmouth, etc.); /antag permitted but consider also ANTIVENINS; /enzymology permitted; TN 241: common & scientific names of various crotalids

MeSH Record

History Note

78

MeSH Record

Previous Indexing

  • Snake Venoms (1975-1977)
  • Snakes (1966-1974)
  • Venoms (1966-1974)

MeSH Hierarchy

Tree Numbers

  1. D20.888w.850w.960.200
  2. D23.946w.833w.850w.960.200

MeSH Record

NLM Classification

QW 630.5.V4

AMA Style

References

  1. National Library of Medicine. Crotalid Venoms. Medical Subject Headings (MeSH). 2026. Unique ID D003435. http://id.nlm.nih.gov/mesh/2026/D003435
  2. Crotalid Venoms. In: Wikidata. https://www.wikidata.org/wiki/Q72100385