IL 3638 Pill - clear capsule/oblong, 24mm
Pill with imprint IL 3638 is Clear, Capsule/Oblong and has been identified as Theophylline Extended-Release 125 mg. It is supplied by Inwood Laboratories Inc.
Theophylline is used in the treatment of Asthma, Maintenance; Apnea of Prematurity; Asthma; Asthma, acute and belongs to the drug class methylxanthines. Risk cannot be ruled out during pregnancy. Theophylline 125 mg is not a controlled substance under the Controlled Substances Act (CSA).
Images for IL 3638


Theophylline Extended-Release
- Imprint
- IL 3638
- Strength
- 125 mg
- Color
- Clear
- Size
- 24.00 mm
- Shape
- Capsule/Oblong
- Availability
- Prescription only
- Drug Class
- Methylxanthines
- Pregnancy Category
- C - Risk cannot be ruled out
- CSA Schedule
- Not a controlled drug
- Labeler / Supplier
- Inwood Laboratories Inc.
- National Drug Code (NDC)
- 00258-3638 (Discontinued)
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More about theophylline
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- Drug images
- Side effects
- Dosage information
- During pregnancy
- Drug class: methylxanthines
- Breastfeeding
- En español
Patient resources
- Theophylline drug information
- Theophylline (Intravenous) (Advanced Reading)
- Theophylline (Oral) (Advanced Reading)
- Theophylline Extended-Release Tablets
- Theophylline Extended-Release Capsules
- Theophylline Injection
Other brands
Theo-24, Elixophyllin, Theo-Dur, Uniphyl, ... +6 more
Professional resources
- Theophylline prescribing information
- Theophylline Elixir (FDA)
- Theophylline Oral Solution (FDA)
- Theophylline in Dextrose (FDA)
Other brands
Theo-24, Elixophyllin, Quibron-T/SR
Related treatment guides
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.