IL 3581 (Theophylline extended release 300 mg)

Pill imprint IL 3581 has been identified as Theophylline extended release 300 mg.

Theophylline is used in the treatment of asthma, maintenance; asthma, acute; apnea of prematurity and belongs to the drug class methylxanthines. Risk cannot be ruled out during pregnancy. Theophylline 300 mg is not subject to the Controlled Substances Act.

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Theophylline extended release 300 mg IL 3581
Theophylline extended release 300 mg IL 3581
Theophylline extended release
IL 3581
300 mg
Prescription only
Drug Class:
Pregnancy Category:
C - Risk cannot be ruled out
CSA Schedule:
N - Not a controlled drug
Inwood Laboratories Inc.
National Drug Code (NDC):
Other Manufacturers / Repackagers:
NDC CodeManufacturer / Repackager
00182-1400 Goldline Laboratories Inc
00677-0817 URL Pharma, Inc.(now Sun Pharma)
00904-1612 Major Pharmaceuticals
00456-4330 Forest Pharmaceuticals, Inc (acquired by Actavis July 2014)
00603-5946 Qualitest Pharmaceuticals
54569-2483 A S Medication Solutions LLC (repackager)

Note: Inactive ingredients may vary.

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