alphadex 100mcg injection - Dexmedetomidine (100mcg) medicine

alphadex 100mcg injection - Uses, Price, Side Effects & Substitutes

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๐Ÿญ Fusion Healthcare Pvt Ltd ๐Ÿ“ฆ Varies by brand ๐Ÿ’Š Allopathy ๐Ÿ“… Updated: Jul 1, 2026
๐Ÿ“‹ Prescription Required ๐Ÿ’Š Generic Available
Medically Reviewed
SaathiMed Expert Panel | Jul 01, 2026

What is alphadex 100mcg injection used for?

Alphadex 100mcg Injection (Dexmedetomidine) is used to treat NEURO CNS. It contains Dexmedetomidine (100mcg), which Selective alpha-2 adrenergic receptor agonist, reducing sympathetic outflow and . Always consult your doctor before use. Take as prescribed.

  • Generic Name: Dexmedetomidine
  • Manufacturer: Fusion Healthcare Pvt Ltd
  • Form: Allopathy
  • Pregnancy Category: C
  • Prescription Required: Yes
๐Ÿ’ก Did You Know? Over 80% of the antiretroviral drugs used globally to combat AIDS are supplied by Indian pharmaceutical companies.

๐Ÿ’Š alphadex 100mcg injection Uses & Benefits

Sedation of intubated and mechanically ventilated patients in ICU, procedural sedation, adjunct to anesthesia.

Off-label uses: Treatment of opioid withdrawal, prevention of delirium, pediatric sedation.

๐Ÿ“‹ Drug Information

Generic Name(s)Dexmedetomidine
Brand NameAlphadex 100mcg Injection
ManufacturerFusion Healthcare Pvt Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassNEURO CNS
Action ClassAlpha 2-Adrenoceptor agonists (Anaesthetic)
Route of AdministrationIntravenous infusion; also intramuscular.
StorageStore at 20-25ยฐC (68-77ยฐF); protect from light.
Shelf LifeAs per manufacturer

๐Ÿ”ฌ Pharmacology (PK/PD)

Pharmacokinetics

AbsorptionRapidly absorbed after intramuscular injection; intravenous administration provides immediate systemic availability.
DistributionWidely distributed; steady-state volume of distribution approximately 1.5-3 L/kg.
Protein BindingApproximately 94% bound to plasma proteins.
MetabolismExtensively metabolized in the liver via glucuronidation and hydroxylation; CYP2A6 involved.
Half-LifeApproximately 2 hours (range 1.5-3 hours).
ExcretionPrimarily renal; 95% excreted in urine, 4% in feces.
BioavailabilityIntravenous: 100%; Intramuscular: approximately 80%.
Onset of ActionWithin 5-10 minutes after IV infusion.
Peak Plasma TimeImmediately after IV bolus; 1 hour after IM injection.
Duration of ActionSedative effects last 1-2 hours after infusion; analgesic effects persist longer.

How It Works

Selective alpha-2 adrenergic receptor agonist, reducing sympathetic outflow and inducing sedation, analgesia, and anxiolysis.

Mechanism Steps

1Binds to presynaptic alpha-2 adrenergic receptors in the central nervous system
2Reduces norepinephrine release from sympathetic nerve terminals
3Decreases sympathetic outflow from the locus coeruleus

๐Ÿ’ก How to Take alphadex 100mcg injection

Follow your doctor's prescription exactly.

โš ๏ธ Side Effects of alphadex 100mcg injection

โœ… Common Side Effects

  • Bradycardia
  • Hypotension
  • Dry mouth
  • Nausea
  • Vomiting

๐Ÿšจ Serious Side Effects

  • Severe bradycardia
  • Cardiac arrest
  • Hypotension requiring intervention
  • Atrial fibrillation

โš ๏ธ Rare Side Effects

  • Hyperthermia
  • Seizures
  • Prolonged QT interval
  • Anaphylaxis

Consult your doctor if you experience any unusual symptoms.

๐Ÿ”ฌ Drug Interactions

โš ๏ธ DrugSeverityEffect
Sevoflurane Major Enhanced sedation and bradycardia
Fentanyl Major Increased risk of bradycardia and hypotension
Propranolol Major Additive bradycardia and hypotension
Midazolam Moderate Additive sedation
Atropine Moderate May counteract bradycardia
Caffeine Minor May reduce sedative effect

๐Ÿšจ Major Interactions

  • Anesthetics (e.g., sevoflurane, isoflurane)
  • Opioids (e.g., fentanyl, morphine)
  • Antihypertensives (e.g., beta-blockers, clonidine)

โšก Moderate Interactions

  • Sedatives (e.g., benzodiazepines, barbiturates)
  • Anticholinergics (e.g., atropine)
  • Vasodilators (e.g., nitroglycerin)

โ„น๏ธ Minor Interactions

  • Caffeine
  • Theophylline

๐Ÿฝ๏ธ Food Interactions

No significant food interactions.

๐Ÿท Alcohol Interaction

Enhanced sedative effects; avoid concurrent use.

๐Ÿ›ก๏ธ Safety & Warnings

๐Ÿšซ Contraindications

Hypersensitivity to dexmedetomidine, advanced heart block (unless paced), severe hypotension, acute cerebrovascular disease.

๐Ÿ“Š Monitoring Parameters

Heart rate, blood pressure, respiratory rate, oxygen saturation, sedation level (e.g., Richmond Agitation-Sedation Scale).

๐Ÿคฑ Lactation Safety

Not recommended; excreted in animal milk, unknown in humans.

๐Ÿ’Š Overdose Management

Supportive care; atropine for bradycardia, fluids and vasopressors for hypotension.

โฐ Missed Dose

Administer as soon as possible; do not double dose.

๐Ÿ‘จโ€โš•๏ธ Reviewed by Expert

SaathiMed Expert Panel

MD, PhD - Pharmacology

Reviewed: Jul 01, 2026

๐Ÿ”— View Profile

๐Ÿ”„ Substitutes for alphadex 100mcg injection

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Alternative brands with exact same active ingredient (Dexmedetomidine (100mcg)):

Medical Note: Always consult your doctor before switching medications.

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