epinephrine
Fight-or-flight chemical
Epinephrine is a hormone produced by the adrenal glands in response to stress, triggering the body's fight-or-flight response—accelerating heart rate, dilating airways, and sharpening alertness.
In medicine, synthetic epinephrine treats severe allergic reactions, cardiac arrest, and asthma attacks: She carries an epinephrine injector for bee stings.
Also called adrenaline, especially in British English and informal American usage.
Tyrosine-derived signaling molecule
- cortisolAdrenal steroid regulating stress
- adrenalNear the kidneys
- endocrineInternally secreting gland system
- neurotransmitterSynaptic chemical messenger
dopamine · serotonin · gland · pituitary · thyroid · insulin · receptor · synapse
Severe systemic allergic reaction
- EpiPenBrand-name anaphylaxis injector
- autoinjectorSelf-delivery drug syringe
- ambulanceEmergency medical transport
- paramedicPrehospital emergency caregiver
rescue · life-saving · trauma · shock · crisis · urgent · triage · ER
Arterial walls contracting inward
- bronchodilationWidening of air passages
- sweatingMoisture through pores
- tremorInvoluntary rhythmic shaking
- glucosePrimary cellular fuel
metabolism · cardiac · respiratory · circulation · pulse · oxygen · arousal · hyperglycemia
Syringe-delivered dose
- autoinjectorSelf-delivery drug syringe
- EpiPenBrand-name anaphylaxis injector
- syringeMedical injection tool
- intramuscularInto muscle tissue
dose · prescription · pharmacy · bronchodilator · vasoconstrictor · antihistamine · immunotherapy · pharmacology
catecholamine
Tyrosine-derived signaling molecule
- cortisolAdrenal steroid regulating stress
- adrenalNear the kidneys
- endocrineInternally secreting gland system
neurotransmitter · dopamine · serotonin · gland · pituitary · thyroid · insulin · receptor · synapse · acetylcholine
anaphylaxis
Severe systemic allergic reaction
- EpiPenBrand-name anaphylaxis injector
- autoinjectorSelf-delivery drug syringe
- ambulanceEmergency medical transport
paramedic · rescue · life-saving · trauma · shock · crisis · urgent · triage · ER · ICU
vasoconstriction
Arterial walls contracting inward
- bronchodilationWidening of air passages
- sweatingMoisture through pores
- tremorInvoluntary rhythmic shaking
glucose · metabolism · cardiac · respiratory · circulation · pulse · oxygen · arousal · hyperglycemia · pallor
injection
Syringe-delivered dose
- autoinjectorSelf-delivery drug syringe
- EpiPenBrand-name anaphylaxis injector
- syringeMedical injection tool
intramuscular · dose · prescription · pharmacy · bronchodilator · vasoconstrictor · antihistamine · immunotherapy · pharmacology · treatment
- allergiesallergy, allergies, allergen, allergens, allergist
- Medicinespill, tablet, aspirin, tablets, penicillin
- stressstress, chronic stress, acute stress, strain, stressor
- emergency rescue911, CPR, ambulance, paramedic, paramedics
- rescue equipmentlife jacket, life vest, life buoy, life preserver, life net
- Biochemicalsamino acid, amino acids, protein, proteins, DNA
epinephrinesedative
Drug promoting calm
beta-blocker · acetylcholine · melatonin · tranquilizer · depressant
- epinephrine penEmergency allergy medication device