emflaza
deflazacort · by ptc therap
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Overview
The active ingredient in deflazacort oral suspension is deflazacort (a corticosteroid). Corticosteroids are adrenocortical steroids, both naturally occurring and synthetic. The molecular formula for deflazacort is C 25 H 31 NO 6 . The chemical name for deflazacort is (11β,16β)-21-(acetyloxy)-11-hydroxy-2'-methyl-5'H-pregna-1,4-dieno[17,16-d]oxazole-3,20-dione, and the structure is: Deflazacort is a white to off white fine powder and has a molecular weight of 441.5. Deflazacort is freely soluble in acetic acid and dichloromethane and soluble in methanol and acetone. Deflazacort for oral administration is available as an immediate-release oral suspension in a strength of 22.75 mg/mL. The oral suspension contains deflazacort and the following inactive ingredients: benzyl alcohol, carboxymethylcellulose sodium, glacial acetic acid, magnesium aluminum silicate, polysorbate 80, purified water and sorbitol solution. Image
How to use
The recommended once-daily dosage is approximately 0.9 mg/kg/day administered orally ( 2.2 ) Discontinue gradually when administered for more than a few days ( 2.3 ) 2.1 Assessments Prior to First Dose of Deflazacort Oral Suspension Administer all immunizations according to immunization guidelines prior to starting deflazacort oral suspension. Administer live-attenuated or live vaccines at least 4 to 6 weeks prior to starting deflazacort oral suspension [see Warnings and Precautions (5.8) ]. 2.2 Dosing Information The recommended oral dosage of deflazacort oral suspension is approximately 0.9 mg/kg/day once daily. If the oral suspension is used, round up to the nearest tenth of a milliliter (mL). 2.3 Discontinuation Dosage of deflazacort oral suspension must be decreased gradually if the drug has been administered for more than a few days [see Warnings and Precautions (5.1 )]. 2.4 Important Preparation and Administration Instructions Deflazacort oral suspension can be taken with or without food. Do not administer deflazacort oral suspension with grapefruit juice [see Drug Interactions (7.1) ]. Shake deflazacort oral suspension well before administration. Use only the oral dispenser provided with the product. After withdrawing the appropriate dose into the oral dispenser, slowly add the deflazacort oral suspension into 3 to 4 ounces of juice (except grapefruit juice) or milk…
Side effects
The following serious adverse reactions are discussed in more detail in other sections: Alterations in Endocrine Function [see Warnings and Precautions (5.1) ] Immunosuppression and Increased Risk of Infection [see Warnings and Precautions (5.2) ] Alterations in Cardiovascular/Renal Function [see Warnings and Precautions (5.3) ] Gastrointestinal Perforation [see Warnings and Precautions (5.4) ] Behavioral and Mood Disturbances [see Warnings and Precautions (5.5) ] Effects on Bones [see Warnings and Precautions (5.6) ] Ophthalmic Effects [see Warnings and Precautions (5.7 )] Immunizations [see Warnings and Precautions (5.8) ] Serious Skin Rashes [see Warnings and Precautions (5.9) ] Effects on Growth and Development [see Warnings and Precautions (5.10) ] Myopathy [see Warnings and Precautions (5.11) ] Kaposi's Sarcoma [see Warnings and Precautions (5.12) ] Risk of Serious Adverse Reactions in Infants because of Benzyl Alcohol Preservative [see Warnings and Precautions (5.13) ] Thromboembolic Events [see Warnings and Precautions (5.14) ] Anaphylaxis [see Warnings and Precautions (5.15) ] The most common adverse reactions (≥10% for deflazacort and greater than placebo) are Cushingoid appearance, weight increased, increased appetite, upper respiratory tract infection, cough, pollakiuria, hirsutism, central obesity, and nasopharyngitis ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS,…
Warnings
Important safety information
Alterations in Endocrine Function : Hypothalamic-pituitary-adrenal axis suppression, Cushing's syndrome, and hyperglycemia can occur; Monitor patients for these conditions with chronic use of deflazacort ( 2.3 , 5.1 ) Immunosuppression and Increased Risk of Infection: Increased risk of new, exacerbation, dissemination, or reactivation of latent infections, which can be severe and at times fatal; Signs and symptoms of infection may be masked ( 5.2 ) Alterations in Cardiovascular/Renal Function : Monitor for elevated blood pressure and sodium, and for decreased potassium levels ( 5.3 ) Gastrointestinal Perforation: Increased risk in patients with certain GI disorders; Signs and symptoms may be masked ( 5.4 ) Behavioral and Mood Disturbances: May include euphoria, insomnia, mood swings, personality changes, severe depression, and psychosis ( 5.5 ) Effects on Bones: Monitor for decreases in bone mineral density with chronic use of deflazacort ( 5.6 ) Ophthalmic Effects: May include cataracts, infections, and glaucoma; Monitor intraocular pressure if deflazacort is continued for more than 6 weeks ( 5.7 ) Vaccination: Do not administer live or live attenuated vaccines to patients receiving immunosuppressive doses of corticosteroids. Administer live-attenuated or live vaccines at least 4 to 6 weeks prior to starting deflazacort ( 5.8 ) Serious Skin Rashes: Discontinue at the first…
Interactions
Moderate or strong CYP3A4 inhibitors: Give one third of the recommended dosage of deflazacort ( 7.1 ) Avoid use of moderate or strong CYP3A4 inducers with deflazacort, as they may reduce efficacy ( 7.1) Additional pediatric use information is approved for PTC Therapeutics, Inc.'s Emflaza™ (deflazacort) oral suspension. However, due to PTC Therapeutics, Inc.'s marketing exclusivity rights, this drug product is not labeled with that information . 7.1 CYP3A4 Inhibitors and Inducers Moderate or Strong CYP3A4 Inhibitors The active metabolite of deflazacort, 21-desDFZ, is a substrate of CYP3A4 [see Clinical Pharmacology (12.3) ] . Co-administration of deflazacort with clarithromycin, a strong CYP3A4 inhibitor, increased total exposure to 21-desDFZ by about 3-fold. Therefore, give one third the recommended dosage of deflazacort when moderate or strong CYP3A4 inhibitors (e.g., clarithromycin, fluconazole, diltiazem, verapamil, grapefruit juice) are used concomitantly with deflazacort [see Dosage and Administration (2.5) and Clinical Pharmacology (12.3) ] . Moderate or Strong CYP3A4 Inducers Co-administration of deflazacort with rifampin, a strong CYP3A4 inducer, significantly decreased the exposure of 21-desDFZ. Avoid concomitant use of strong (e.g., efavirenz) or moderate (e.g., carbamazepine, phenytoin) CYP3A4 inducers with deflazacort [see Dosage and Administration (2.5) and…
Drug class
May treat
Dosage forms
TABLET
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Frequently asked questions
- What is Emflaza?
- The active ingredient in deflazacort oral suspension is deflazacort (a corticosteroid). Corticosteroids are adrenocortical steroids, both naturally occurring and synthetic. The molecular formula for deflazacort is C 25 H 31 NO 6 . The chemical name for deflazacort is (11β,16β)-21-(acetyloxy)-11-hydroxy-2'-methyl-5'H-pregna-1,4-dieno[17,16-d]oxazole-3,20-dione, and the structure is: Deflazacort is a white to off white fine powder and has a molecular weight of 441.5. Deflazacort is freely soluble in acetic acid and dichloromethane and soluble in methanol and acetone. Deflazacort for oral administration is available as an immediate-release oral suspension in a strength of 22.75 mg/mL. The oral suspension contains deflazacort and the following inactive ingredients: benzyl alcohol, carboxymethylcellulose sodium, glacial acetic acid, magnesium aluminum silicate, polysorbate 80, purified water and sorbitol solution. Image
- What does Emflaza treat?
- Emflaza (Deflazacort) is indicated for inflammation, muscular dystrophy, duchenne, per its drug-label indications. This is general reference, not medical advice.
Clinical content sourced from the FDA label via openFDA (U.S. FDA). Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
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