Antivenin

Latrodectus mactans · Merck Sharp & Dohme LLC
PRESCRIPTION ONLY (USA)

Antivenin ingredients

Active ingredientStrength
Latrodectus mactanssee label

What Antivenin is used for

Antivenin is a specialist medicine. Its approved uses are listed on the official FDA label below.

Key facts

Brand
Antivenin
Generic name
Latrodectus mactans
Made by
Merck Sharp & Dohme LLC
Forms
Kit
FDA approval
Biologic licence (BLA) BLA101062
On the US market since
2014

Official information

Specialist medicine: started and supervised by a specialist doctor or hospital. This page is a plain-language summary of public official information, not medical advice; follow your doctor and the official product information.

Common questions

What is Antivenin?

Antivenin (Latrodectus mactans) is a specialist medicine made by Merck Sharp & Dohme LLC, approved by the US FDA.

What are the ingredients of Antivenin?

Antivenin contains Latrodectus mactans.

From the FDA National Drug Code directory (open.fda.gov, public domain). Page made 5 November 2026 by Satya Babu.

← All specialty medicines, USA

For information only, not medical advice. This page is a plain-language summary written from standard prescribing information and the public guides linked below. Brands sometimes change their formula, so always check the composition printed on the pack. Doses here are typical adult doses; yours may differ. Do not start, stop or change a medicine without your doctor or pharmacist, and keep all medicines away from children. In an emergency, call 112 (India) or your local emergency number.