The short version
Just 3 companies supply this market — thin enough that a single exit would be felt immediately.
Market view
5 marketed package NDCs · 3 active manufacturers
Just 3 companies supply this market — thin enough that a single exit would be felt immediately.
Other molecules FDA puts in Herpesvirus Nucleoside Analog DNA Polymerase Inhibitor, with whether each is in shortage right now. Same class is not the same drug — substitution is a clinical decision, and this is a supply picture, not a recommendation.
Expand a strength to see its dosage forms, then package sizes, then each manufacturer and NDC. Click an NDC for its full detail page.