PillATC R03DA04
Theophylline
4 US drug concepts across dosage forms & routes
24 ACTIVE SUPPLIERS — US
openFDA · updated weekly
All forms4 active · 0 discontinued
Every dosage form and route registered under this substance. Each links to its own price trend, supplier list, and regulatory history.
| Drug | Form | Route | Type | Status |
|---|---|---|---|---|
| Theophylline | Tablet, Extended Release | Oral | rx | 17 SUPPLYING |
| Theophylline | Solution | Oral | rx | 6 SUPPLYING |
| Theophylline Anhydrous | Capsule, Extended Release | Oral | rx | 1 SUPPLYING |
| Theophylline Anhydrous | Tablet, Extended Release | Oral | rx | 1 SUPPLYING |
Grouped by WHO ATC classification (via RxNorm) — one substance across every US dosage form and route on file. See the methodology for how the ATC mapping and supplier counts are built.