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cromolyn sodium, inhaled

 

Classes: Mast Cell Stabilizers

Dosing and uses of Cromolyn sodium inhaled

 

Adult dosage forms and strengths

nebulization solution

  • 10mg/mL (2mL/vial)

 

Asthma

20 mg inhaled via nebulization QID; may decrease to BID/TID once stabilized

 

Bronchospasm Prophylaxis (Exercise Induced or Allergen)

Administer 20 mg as single dose 10-15 min prior to exercise or allergen exposure but no longer than 1 hr

 

Mastocytosis (Orphan)

Orphan designation for treatment of mastocytosis

Sponsor

  • Patara Pharma, LLC; 11455 El Camino Real, Suite 460; San Diego, California 92130

 

Pediatric dosage forms and strengths

nebulization solution

  • 10mg/mL (2mL/vial)

 

Asthma

<2 years: Safety and efficacy not established

≥2 years: 20 mg inhaled via nebulization QID; may decrease to BID/TID once stabilized

 

Bronchospasm Prophylaxis (Exercise Induced or Allergen)

<2 years: Safety and efficacy not established

&ge2 years: Administer 20 mg as single dose 10-15 min prior to exercise or allergen exposure but no longer than 1 hr

 

Cromolyn sodium inhaled adverse (side) effects

Frequency not defined

Cough

Flushing

Palpitation

Chest pain

Nasal congestion

Nausea

Fatigue

Migraine

Sneezing

Wheezing

Psychosis

Pruritus

Dysphagia

Esophagospasm

Pancytopenia

Polycythemia

Tinnitus

Pharyngitis

Lupus erythematosus

 

Warnings

Contraindications

Hypersensitivity; acute asthma attack

 

Cautions

Not for status asthmaticus

Use caution in patients with a history of cardiac arryhthmias

Use caution in renal or hepatic impairment; may require dose adjustment

Some reports of bronchospasm or cough after administration

Not useful in acute situations

Symptoms may reoccur while withdrawing or tapering the dose

 

Pregnancy and lactation

Pregnancy category: B

Lactation: Unknown whether distributed in breast milk; likely compatible

 

Pregnancy categories

A: Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.

B: May be acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk.

C: Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done.

D: Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk.

X: Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist.

NA: Information not available.

 

Pharmacology of Cromolyn sodium inhaled

Mechanism of action

Mast cell stabilizer; inhibits release of histamine, leukotrienes, and slow-reacting substance of anaphylaxis from mast cell by inhibiting degranulation following exposure to reactive antigens

 

Pharmacokinetics

Absorption: 8%

Peak plasma time: 15 min

Peak plasma concentration: 9 ng/mL

Half-life: 80-90 min

Onset: 2-6 weeks (PO)

Duration: 6 hr

Excretion: Feces (98%, unabsorbed drugs); urine (<0.5%)