Epinephrine 1mg/ml Inj, 30ml Vial
Overview
What is this medicine?
How to Use This Medicine
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.
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.
Available Forms & Alternatives
Dosing & Administration
Adult Dosing
Condition-Specific Dosing:
Pediatric Dosing
Dose Adjustments
Renal Impairment:
Hepatic Impairment:
Pharmacology
Mechanism of Action
Pharmacokinetics
Absorption:
Distribution:
Elimination:
Pharmacodynamics
Safety & Warnings
Side Effects
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.
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
Before Using This Medicine
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.
Precautions & Cautions
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.
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
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.
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
Baseline Monitoring
Rationale: To establish baseline and monitor for hypertensive crisis or inadequate response.
Timing: Prior to administration, especially for IV infusion.
Rationale: To establish baseline and monitor for tachycardia, arrhythmias, or myocardial ischemia.
Timing: Prior to administration, continuous monitoring during and after IV administration.
Rationale: To assess respiratory distress and response to bronchodilation.
Timing: Prior to administration and continuously during acute events.
Routine Monitoring
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.
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).
Frequency: Continuously
Target: >92-94%
Action Threshold: <90% or clinical signs of hypoxemia.
Frequency: Periodically, especially with prolonged infusions or in diabetic patients.
Target: 70-180 mg/dL
Action Threshold: >200 mg/dL or <70 mg/dL.
Frequency: Continuously/frequently
Target: Warm, dry, good capillary refill
Action Threshold: Cool, clammy skin, mottled, prolonged capillary refill.
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
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:
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.
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.
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
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.
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)