adrena 2mg injection - Ephedrine (2mg) medicine

adrena 2mg injection

4.4 (17 reviews)
๐Ÿญ Geo Pharma Pvt Ltd ๐Ÿ“ฆ Varies by brand ๐Ÿ’Š Allopathy ๐Ÿ“… Updated: Aug 23, 2026
๐Ÿ“‹ Prescription Required ๐Ÿ’Š Generic Available
Medically Reviewed
SaathiMed Expert Panel | Aug 23, 2026

What is adrena 2mg injection used for?

Adrena 2mg Injection (Ephedrine) is used to treat CARDIAC. It contains Ephedrine (2mg), which Directly stimulates alpha and beta adrenergic receptors and indirectly releases . Always consult your doctor before use. Take as prescribed.

  • Generic Name: Ephedrine
  • Manufacturer: Geo Pharma Pvt Ltd
  • Form: Allopathy
  • Pregnancy Category: A
  • Prescription Required: Yes
๐Ÿ’ก Did You Know? India has the highest number of USFDA-compliant plants outside the USA.

๐Ÿ’Š adrena 2mg injection Uses & Benefits

Treatment of hypotension (e.g., spinal anesthesia); bronchodilation in asthma; nasal decongestion; mydriasis in ophthalmology.

Off-label uses: Weight loss (not recommended); treatment of priapism; adjunct in myasthenia gravis.

๐Ÿ“‹ Drug Information

Generic Name(s)Ephedrine
Brand NameAdrena 2mg Injection
ManufacturerGeo Pharma Pvt Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassCARDIAC
Action ClassSympathomimetics agonist
Route of AdministrationIntravenous, intramuscular, subcutaneous
StorageStore at 20-25ยฐC (68-77ยฐF); protect from light.
Shelf LifeAs per manufacturer

๐Ÿ”ฌ Pharmacology (PK/PD)

Pharmacokinetics

AbsorptionRapidly absorbed after intramuscular or subcutaneous injection; bioavailability is high due to parenteral route.
DistributionWidely distributed throughout the body; crosses the blood-brain barrier and placenta.
Protein BindingMinimal (less than 5%)
MetabolismHepatic metabolism via oxidative deamination and demethylation; minimal first-pass effect due to parenteral administration.
Half-Life3-6 hours
ExcretionPrimarily renal excretion as unchanged drug and metabolites; urinary pH affects excretion rate.
Bioavailability100% (intravenous); high for intramuscular and subcutaneous routes.
Onset of ActionRapid (within minutes) after intravenous injection; 10-20 minutes after intramuscular injection.
Peak Plasma TimeImmediately after IV; 20-30 minutes after IM/SC.
Duration of Action30-60 minutes after IV; 1-2 hours after IM/SC.

How It Works

Directly stimulates alpha and beta adrenergic receptors and indirectly releases norepinephrine from presynaptic terminals.

Mechanism Steps

1Binds to alpha-1 adrenergic receptors on vascular smooth muscle, causing vasoconstriction.
2Binds to beta-1 adrenergic receptors in the heart, increasing heart rate and contractility.
3Binds to beta-2 adrenergic receptors in bronchial smooth muscle, causing bronchodilation.

๐Ÿ’ก How to Take adrena 2mg injection

Follow your doctor's prescription exactly.

โš ๏ธ Side Effects of adrena 2mg injection

โœ… Common Side Effects

  • Nervousness
  • Insomnia
  • Tremor
  • Headache
  • Palpitations
  • Sweating
  • Loss of appetite

๐Ÿšจ Serious Side Effects

  • Hypertension
  • Arrhythmias
  • Myocardial ischemia
  • Stroke
  • Seizures
  • Pulmonary edema

โš ๏ธ Rare Side Effects

  • Allergic reactions
  • Urinary retention
  • Mydriasis
  • Hyperglycemia

Consult your doctor if you experience any unusual symptoms.

๐Ÿ”ฌ Drug Interactions

โš ๏ธ DrugSeverityEffect
MAO Inhibitors Major Hypertensive crisis
Guanethidine Major Reduced antihypertensive effect
Reserpine Major Increased pressor response
Methyldopa Major Hypertensive crisis
Beta-blockers Moderate Reduced bronchodilation, bradycardia
Tricyclic antidepressants Moderate Enhanced pressor effects
Digoxin Moderate Increased risk of arrhythmias
Halogenated anesthetics Moderate Ventricular arrhythmias
Theophylline Minor Additive CNS stimulation
Caffeine Minor Additive CNS stimulation
Antacids Minor Reduced absorption of ephedrine

๐Ÿšจ Major Interactions

  • MAO Inhibitors
  • Guanethidine
  • Reserpine
  • Methyldopa

โšก Moderate Interactions

  • Beta-blockers
  • Tricyclic antidepressants
  • Digoxin
  • Halogenated anesthetics

โ„น๏ธ Minor Interactions

  • Theophylline
  • Caffeine
  • Antacids

๐Ÿฝ๏ธ Food Interactions

No significant food interactions.

๐Ÿท Alcohol Interaction

May enhance CNS stimulation; avoid concurrent use.

๐Ÿ›ก๏ธ Safety & Warnings

๐Ÿšซ Contraindications

Hypersensitivity to ephedrine; severe hypertension; coronary artery disease; arrhythmias; hyperthyroidism; narrow-angle glaucoma; concurrent MAO inhibitor use.

๐Ÿ“Š Monitoring Parameters

Blood pressure, heart rate, ECG, CNS status, urine output.

๐Ÿคฑ Lactation Safety

Excreted in breast milk; use with caution.

๐Ÿ’Š Overdose Management

Supportive care; administer phentolamine for hypertension; beta-blockers for tachycardia; diazepam for seizures.

โฐ Missed Dose

Not applicable for acute use; administer as needed.

๐Ÿ‘จโ€โš•๏ธ Reviewed by Expert

SaathiMed Expert Panel

MD, PhD - Pharmacology

Last reviewed on: Aug 23, 2026

๐Ÿ”— View Profile

โญ User Reviews

Regular Customer Jul 10, 2026

Found this to be a helpful product. Good results.

Regular Customer Jul 10, 2026

Good quality medicine. Satisfied with the outcome.

Trusted Reviewer Jul 10, 2026

Good quality medicine. Satisfied with the outcome.

Trusted Reviewer Jul 10, 2026

Found this to be a helpful product. Good results.

Trusted Reviewer Jul 10, 2026

Good quality medicine. Satisfied with the outcome.

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