Celestone Soluspan

Drug Description
font size

CELESTONE® SOLUSPAN® *
(betamethasone sodium phosphate and betamethasone acetate) Injectable Suspension, USP 6 mg per mL

*brand of rapid and repository injectable

DRUG DESCRIPTION

CELESTONE® SOLUSPAN® * Injectable Suspension is a sterile aqueous suspension containing 3 mg per milliliter betamethasone, as betamethasone sodium phosphate, and 3 mg per milliliter betamethasone acetate. Inactive ingredients per mL: 7.1 mg dibasic sodium phosphate; 3.4 mg monobasic sodium phosphate; 0.1 mg edetate disodium; and 0.2 mg benzalkonium chloride as preservative. The pH is adjusted to between 6.8 and 7.2.

The formula for betamethasone sodium phosphate is C22H28FNa2O8P and it has a molecular weight of 516.41. Chemically, it is 9-Fluoro-11β,17,21-trihydroxy-16β-methylpregna-1,4­diene-3,20-dione 21-(disodium phosphate).

The formula for betamethasone acetate is C24H31FO6 and it has a molecular weight of 434.50. Chemically, it is 9-Fluoro-11β,17,21-trihydroxy-16β-methylpregna-1,4-diene-3,20­dione 21-acetate.

The chemical structures for betamethasone sodium phosphate and betamethasone acetate are as follows:

CELESTONE®    SOLUSPAN (betamethasone sodium phosphate and betamethasone acetate) Structural Formula Illustration

Betamethasone sodium phosphate is a white to practically white, odorless powder, and is hygroscopic. It is freely soluble in water and in methanol, but is practically insoluble in acetone and in chloroform.

Betamethasone acetate is a white to creamy white, odorless powder that sinters and resolidifies at about and remelts at about 165°C with decomposition. It is practically insoluble in water, but freely soluble in acetone, and is soluble in alcohol and in chloroform.

Last updated on RxList: 9/3/2008


Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


Bookmark this page:

Women's Health

Find out what women really need.

Herbal First AidHerbal First Aid
Herbal medicine is ancient, but only in recent years have many people started to take notice of its all natural healing powers. See more WebMD Videos »