Epinephrine 1mg/ml Inj, 30ml Vial

Manufacturer INTRNTL MEDICATION SYSTEM Active Ingredient Epinephrine Injection Solution (Adrenalin)(ep i NEF rin) Pronunciation ep-i-NEF-rin
It is used to treat an allergic reaction.It is used to treat low blood pressure.It may be given to you for other reasons. Talk with the doctor.
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Drug Class
Vasopressor; Bronchodilator; Antiallergic
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Pharmacologic Class
Alpha- and Beta-adrenergic Agonist
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Pregnancy Category
Category C
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FDA Approved
Jan 1939
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Epinephrine is a powerful medicine used in emergencies to treat severe allergic reactions (anaphylaxis), severe asthma attacks, and to help restart the heart during cardiac arrest. It works by opening up airways, raising blood pressure, and increasing heart rate.
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How to Use This Medicine

Taking Your Medication

To use this medication correctly, follow your doctor's instructions and read all the information provided. It's essential to follow the instructions carefully.

Administration Methods

For allergic reactions, this medication is administered via injection into a muscle or the fatty layer under the skin. For other conditions, your doctor will administer the medication.

Storage and Disposal

If you need to store this medication at home, consult with your doctor, nurse, or pharmacist for guidance on proper storage.

Missed Dose

If you miss a dose, seek medical attention immediately.
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Lifestyle & Tips

  • Always carry your prescribed epinephrine auto-injector if you have severe allergies and know how to use it.
  • Avoid known allergens or triggers.
  • Inform all healthcare providers about your allergies and any medications you are taking.
  • If you experience a severe allergic reaction, administer epinephrine immediately and call 911 or seek emergency medical attention, even if symptoms improve.

Dosing & Administration

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Adult Dosing

Standard Dose: Highly variable based on indication. For anaphylaxis: 0.3-0.5 mg IM/SC; For cardiac arrest: 1 mg IV/IO every 3-5 minutes; For severe asthma/bronchospasm: 0.3-0.5 mg SC/IM every 20 minutes for 3 doses.
Dose Range: 0.01 - 1 mg

Condition-Specific Dosing:

anaphylaxis: 0.3-0.5 mg IM/SC, may repeat every 5-15 minutes as needed.
cardiac_arrest: 1 mg (10 mL of 0.1 mg/mL solution) IV/IO every 3-5 minutes during resuscitation.
bradycardia_hypotension_post_cardiac_arrest: 2-10 mcg/min IV infusion, titrated to effect.
severe_asthma: 0.3-0.5 mg SC/IM, may repeat every 20 minutes for 3 doses.
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Pediatric Dosing

Neonatal: Cardiac arrest: 0.01-0.03 mg/kg (0.1-0.3 mL/kg of 0.1 mg/mL solution) IV/IO every 3-5 minutes. Anaphylaxis: Not typically used in neonates, consult specialist.
Infant: Anaphylaxis: 0.01 mg/kg IM (max 0.3 mg per dose). Cardiac arrest: 0.01 mg/kg (0.1 mL/kg of 0.1 mg/mL solution) IV/IO every 3-5 minutes.
Child: Anaphylaxis: 0.01 mg/kg IM (max 0.5 mg per dose). Cardiac arrest: 0.01 mg/kg (0.1 mL/kg of 0.1 mg/mL solution) IV/IO every 3-5 minutes. Croup: 0.25-0.5 mL of 2.25% racemic epinephrine solution via nebulizer (not 1mg/ml solution).
Adolescent: Anaphylaxis: 0.3-0.5 mg IM/SC. Cardiac arrest: 1 mg (10 mL of 0.1 mg/mL solution) IV/IO every 3-5 minutes.
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Dose Adjustments

Renal Impairment:

Mild: No specific adjustment needed.
Moderate: No specific adjustment needed.
Severe: No specific adjustment needed.
Dialysis: Not significantly dialyzable. No specific adjustment needed, but monitor closely for adverse effects.

Hepatic Impairment:

Mild: No specific adjustment needed.
Moderate: No specific adjustment needed.
Severe: No specific adjustment needed.

Pharmacology

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Mechanism of Action

Epinephrine is a sympathomimetic agent acting on alpha- and beta-adrenergic receptors. Its alpha-1 adrenergic effects (vasoconstriction) increase peripheral vascular resistance and blood pressure, reducing mucosal edema. Its beta-1 adrenergic effects (positive inotropic and chronotropic) increase heart rate and myocardial contractility. Its beta-2 adrenergic effects (bronchodilation) relax bronchial smooth muscle and reduce histamine release from mast cells.
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Pharmacokinetics

Absorption:

Bioavailability: Variable (poor oral absorption, rapid IM/SC absorption)
Tmax: IM: 5-10 minutes; SC: 10-20 minutes; IV: immediate
FoodEffect: Not applicable (parenteral administration)

Distribution:

Vd: Not extensively studied, rapidly distributed to tissues.
ProteinBinding: Not extensively protein bound.
CnssPenetration: Limited (does not readily cross the blood-brain barrier)

Elimination:

HalfLife: Plasma half-life: ~1-2 minutes (very short)
Clearance: Rapid, primarily via metabolism.
ExcretionRoute: Metabolites excreted renally.
Unchanged: <1% (renal excretion)
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Pharmacodynamics

OnsetOfAction: IV: Immediate; IM: 5-10 minutes; SC: 5-10 minutes
PeakEffect: IV: 1-2 minutes; IM: 10-20 minutes; SC: 10-20 minutes
DurationOfAction: IV: Few minutes; IM/SC: 5-30 minutes

Safety & Warnings

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Side Effects

Urgent Side Effects: Seek Medical Help Right Away

Although rare, this medication can cause severe and potentially life-threatening side effects. If you experience any of the following symptoms, contact your doctor or seek medical attention immediately:

Signs of an allergic reaction, such as:
+ Rash
+ Hives
+ Itching
+ Red, swollen, blistered, or peeling skin with or without fever
+ Wheezing
+ Tightness in the chest or throat
+ Trouble breathing, swallowing, or talking
+ Unusual hoarseness
+ Swelling of the mouth, face, lips, tongue, or throat
Signs of low potassium levels, including:
+ Muscle pain or weakness
+ Muscle cramps
+ An irregular heartbeat
Signs of high blood pressure, such as:
+ Severe headache or dizziness
+ Passing out
+ Changes in eyesight
Chest pain or pressure
Rapid heartbeat
Shortness of breath
Urination problems, such as difficulty starting to urinate or changes in urine output
Abnormal sensations, such as burning, numbness, or tingling
Weakness on one side of the body
Trouble speaking or thinking
Changes in balance
Drooping on one side of the face
Blurred vision
Severe abnormal heartbeat (which can be life-threatening, especially if you have pre-existing heart problems or take certain medications)

If you experience any allergic reactions, watch for signs of infection at the injection site, such as:
Redness that doesn't go away
Warmth
Swelling
Tenderness

If you receive this medication through a vein, monitor the injection site for:
Redness
Burning
Pain
Swelling
Blisters
Skin sores
Leaking of fluid

Other Possible Side Effects

Most people taking this medication do not experience severe side effects. However, some may occur. If you experience any of the following side effects, contact your doctor if they bother you or do not go away:
Feeling anxious, nervous, excitable, shaky, or restless
Upset stomach or vomiting
Excessive sweating
Pale skin
Headache
Dizziness
Fatigue
Weakness
Goosebumps

This is not an exhaustive list of possible side effects. If you have questions or concerns, contact your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
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Seek Immediate Medical Attention If You Experience:

  • Severe chest pain
  • Irregular or very fast heartbeat
  • Severe headache
  • Sudden weakness or numbness
  • Difficulty breathing or worsening shortness of breath
  • Dizziness or fainting
  • Confusion
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Before Using This Medicine

Before Taking This Medication: Important Information to Share with Your Doctor

It is essential to inform your doctor about the following:

Any allergies you have, including allergies to this medication, any of its components, or other substances, such as foods or drugs. Be sure to describe the allergic reaction you experienced, including any symptoms that occurred.
All medications you are currently taking, including prescription and over-the-counter (OTC) drugs, natural products, and vitamins. This information will help your doctor assess potential interactions between this medication and other substances you are taking.
* Any health problems you have, as they may affect the safety and efficacy of this medication.

Remember, this is not an exhaustive list of potential interactions. To ensure your safety, it is crucial to discuss all your medications and health problems with your doctor and pharmacist. Never start, stop, or change the dose of any medication without first consulting your doctor to confirm that it is safe to do so.
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Precautions & Cautions

It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication.

When administering this drug, avoid injecting it into the fingers, hands, or feet, as this may cause reduced blood flow to these areas. If accidental injection occurs, seek immediate medical attention.

If you have a sulfite allergy, consult your doctor before taking this medication, as some products may contain sulfites.

Patients with high blood sugar (diabetes) should closely monitor their blood sugar levels while taking this drug.

If you are 65 years or older, use this medication with caution, as you may be more susceptible to side effects.

Before taking this medication, inform your doctor if you are pregnant, planning to become pregnant, or are breast-feeding. Your doctor will discuss the potential benefits and risks of this medication to both you and your baby.
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Overdose Information

Overdose Symptoms:

  • Extreme hypertension (very high blood pressure)
  • Tachycardia (very fast heart rate)
  • Palpitations
  • Arrhythmias (irregular heartbeats)
  • Angina (chest pain)
  • Myocardial infarction (heart attack)
  • Cerebral hemorrhage (bleeding in the brain)
  • Pulmonary edema (fluid in the lungs)
  • Anxiety, nervousness, tremor
  • Pallor

What to Do:

Seek immediate emergency medical attention. Call 911 or your local emergency number. Management is supportive, focusing on reducing blood pressure (e.g., alpha-blockers like phentolamine) and managing arrhythmias. Call 1-800-222-1222 (Poison Control Center).

Drug Interactions

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Major Interactions

  • Non-selective beta-blockers (e.g., propranolol, nadolol): May result in severe hypertension and reflex bradycardia due to unopposed alpha-adrenergic effects.
  • Cocaine: Potentiates cardiac effects, increasing risk of arrhythmias and hypertension.
  • General anesthetics (e.g., halothane, cyclopropane): May sensitize the myocardium to epinephrine, increasing risk of ventricular arrhythmias.
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Moderate Interactions

  • Tricyclic antidepressants (TCAs) and MAO inhibitors (MAOIs): May potentiate the pressor effects of epinephrine, leading to hypertensive crisis.
  • Alpha-adrenergic blockers (e.g., phentolamine): May antagonize the pressor effects of epinephrine.
  • Diuretics (e.g., loop, thiazide): May reduce the pressor response to vasopressors.
  • Cardiac glycosides (e.g., digoxin): Increased risk of arrhythmias.
  • Antidiabetic agents: Epinephrine can increase blood glucose levels, requiring adjustment of antidiabetic therapy.

Monitoring

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Baseline Monitoring

Blood Pressure (BP)

Rationale: To establish baseline and monitor for hypertensive crisis or inadequate response.

Timing: Prior to administration, especially for IV infusion.

Heart Rate (HR) and Electrocardiogram (ECG)

Rationale: To establish baseline and monitor for tachycardia, arrhythmias, or myocardial ischemia.

Timing: Prior to administration, continuous monitoring during and after IV administration.

Respiratory Rate and Oxygen Saturation

Rationale: To assess respiratory distress and response to bronchodilation.

Timing: Prior to administration and continuously during acute events.

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Routine Monitoring

Blood Pressure (BP)

Frequency: Continuously (IV infusion); every 1-5 minutes (acute IM/SC); every 5-15 minutes (post-acute)

Target: Individualized based on clinical indication (e.g., MAP >65 mmHg for shock, resolution of hypotension)

Action Threshold: Systolic BP >180 mmHg or <90 mmHg; Diastolic BP >110 mmHg or <60 mmHg; MAP outside target range.

Heart Rate (HR) and ECG

Frequency: Continuously (IV infusion); every 1-5 minutes (acute IM/SC); every 5-15 minutes (post-acute)

Target: Individualized, generally avoid HR >120-140 bpm unless clinically necessary.

Action Threshold: Tachycardia (>140 bpm), bradycardia (<60 bpm), new arrhythmias (e.g., ventricular ectopy, atrial fibrillation).

Oxygen Saturation (SpO2)

Frequency: Continuously

Target: >92-94%

Action Threshold: <90% or clinical signs of hypoxemia.

Blood Glucose

Frequency: Periodically, especially with prolonged infusions or in diabetic patients.

Target: 70-180 mg/dL

Action Threshold: >200 mg/dL or <70 mg/dL.

Peripheral Perfusion (skin color, temperature, capillary refill)

Frequency: Continuously/frequently

Target: Warm, dry, good capillary refill

Action Threshold: Cool, clammy skin, mottled, prolonged capillary refill.

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Symptom Monitoring

  • Chest pain or discomfort (angina)
  • Palpitations
  • Headache
  • Anxiety or nervousness
  • Tremor
  • Dizziness
  • Nausea/vomiting
  • Dyspnea or worsening respiratory distress
  • Skin pallor or flushing

Special Patient Groups

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Pregnancy

Category C. Use during pregnancy only if the potential benefit justifies the potential risk to the fetus. Epinephrine can cause fetal anoxia due to uterine vasoconstriction and can inhibit uterine contractions. However, in life-threatening situations (e.g., anaphylaxis, cardiac arrest), the benefits of maternal treatment outweigh potential fetal risks.

Trimester-Specific Risks:

First Trimester: Potential for teratogenicity not well-established in humans, but animal studies show some risk at high doses. Use only if clearly indicated for life-threatening conditions.
Second Trimester: Risk of uterine vasoconstriction and reduced placental perfusion. Monitor fetal heart rate if possible.
Third Trimester: Risk of uterine vasoconstriction, reduced placental perfusion, and inhibition of uterine contractions. May delay labor. Monitor fetal heart rate if possible.
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Lactation

L3 (Moderately Safe). Epinephrine is rapidly metabolized and has a very short half-life, making infant exposure through breast milk unlikely to be significant. It is considered compatible with breastfeeding when used for acute, life-threatening conditions.

Infant Risk: Low. Rapid metabolism minimizes infant exposure. No adverse effects reported in breastfed infants.
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Pediatric Use

Dosing is weight-based (0.01 mg/kg) for most indications. Careful attention to concentration and route of administration is critical to avoid dosing errors. For cardiac arrest, the 1mg/ml solution must be diluted to 0.1mg/ml (1:10,000) for IV/IO administration. For anaphylaxis, the 1mg/ml solution is used IM/SC. Neonates and infants are particularly sensitive to adverse effects.

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Geriatric Use

Use with caution in elderly patients due to increased risk of adverse cardiovascular effects (e.g., hypertension, arrhythmias, myocardial ischemia) and pre-existing cardiovascular disease. Start with lower doses and titrate carefully. Monitor closely for adverse effects.

Clinical Information

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Clinical Pearls

  • Epinephrine is the first-line treatment for anaphylaxis. Administer IM into the anterolateral thigh.
  • For cardiac arrest, the 1mg/ml (1:1000) solution must be diluted to 0.1mg/ml (1:10,000) for IV/IO administration.
  • Do not inject IV for anaphylaxis unless in a controlled ICU setting with continuous cardiac monitoring due to risk of severe hypertension, arrhythmias, and myocardial ischemia.
  • Protect from light and store at room temperature. Discard if discolored or contains precipitate.
  • Patients with underlying cardiovascular disease, hyperthyroidism, or diabetes are at higher risk for adverse effects.
  • Accidental intravascular injection of epinephrine can cause severe hypertension and cerebral hemorrhage.
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Alternative Therapies

  • Norepinephrine (for shock, vasopressor)
  • Dopamine (for shock, vasopressor)
  • Phenylephrine (for hypotension, vasopressor)
  • Albuterol (for bronchospasm, beta-2 agonist)
  • Antihistamines (for allergic reactions, but not for anaphylaxis)
  • Corticosteroids (for allergic reactions, but not for acute anaphylaxis)
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Cost & Coverage

Average Cost: Varies widely, typically $10-$50 per 30ml vial (1mg/ml)
Generic Available: Yes
Insurance Coverage: Tier 1 or 2 (generic), Tier 3 or 4 (brand auto-injectors)
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General Drug Facts

If your symptoms or health problems do not improve or worsen over time, it is essential to contact your doctor for further evaluation and guidance. To ensure safe use, never share your prescription medications with others, and do not take medications prescribed to someone else. Store all medications in a secure location, out of reach of children and pets, to prevent accidental ingestion. Properly dispose of unused or expired medications by checking with your pharmacist for guidance on the best disposal method. Unless instructed to do so, avoid flushing medications down the toilet or pouring them down the drain, as this can harm the environment. Many communities offer drug take-back programs, which can be a safe and convenient way to dispose of unwanted medications. Some medications may come with an additional patient information leaflet, so be sure to check with your pharmacist for more information. If you have any questions or concerns about your medication, consult with your doctor, nurse, pharmacist, or other healthcare provider. In the event of a suspected overdose, immediately call your local poison control center or seek emergency medical attention. When seeking help, be prepared to provide information about the medication taken, the amount, and the time it was taken, as this will help healthcare providers deliver appropriate care.