Atropine
Atropen is a brand-name anticholinergic medication containing atropine sulfate, delivered via auto-injector for emergency intramuscular administration. It is primarily used as an antidote for nerve agent or organophosphate pesticide poisoning, reversing life-threatening effects on the nervous system. The medication is commonly stockpiled for military and first responder use in chemical emergency situations.
Atropen is an emergency auto-injector anticholinergic used to counteract nerve agent or organophosphate poisoning by blocking excessive acetylcholine activity.
Key facts at a glance
- RxNorm
- 404863
- Generic
- Atropen
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Emergency treatment of muscarinic effects from nerve agents (such as sarin, soman, VX) or organophosphate/carbamate insecticide poisoning. May also be used for symptomatic bradycardia when rapid heart rate increase is needed.
Atropine is an antimuscarinic agent that competitively blocks acetylcholine at muscarinic receptors, counteracting the excessive cholinergic stimulation caused by nerve agents and organophosphates. This reverses dangerous effects including bronchospasm, bradycardia, and excessive secretions.
Atropen is intended for emergency use by trained personnel. Dosing depends on severity of poisoning and may require repeated administration. Not a substitute for decontamination and supportive care. Side effects from therapeutic doses may include dry mouth, dilated pupils, and tachycardia. Requires proper storage and handling per military/emergency protocols.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed September 2, 2026. · Read our editorial policy