Product Information

THEOPHYLLINE ER 400 MG TABLET is a generic product labeled by Rhodes Pharmaceuticals L.P., priced at $1.0151 per EA under NDC 42858070101. Its NADAC has been published 661 times since Nov 28, 2013.

FDA first approved this application on Sep 1, 1982. Its Orange Book therapeutic-equivalence code is AB — FDA rates it therapeutically equivalent to (substitutable for) its reference product.

The High Outlier badge above means this manufacturer's average price in the Theophylline market falls above Q3 + 1.5·IQR across all competing manufacturers. We only apply this flag in markets with four or more competitors. Full definition: glossary → outlier.

Price Statistics

The NADAC for THEOPHYLLINE ER 400 MG TABLET has been published 661 times since Nov 28, 2013, and over the history we have for it it has risen 11.4%. The table below summarizes its recorded NADAC range and movement.

Generic Alternatives

The matcher finds 1 manufacturer offering a NADAC-published product with this drug's active ingredient and strength in a comparable dosage form (cheapest from each manufacturer, up to 10 shown below). None of the shown alternatives sit below the current price. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.