How should buyers distinguish oxytetracycline injection from water-soluble powder?

They are different dosage forms with different formulations, routes, specifications, packaging, stability considerations and approved directions. Confirm the active form and concentration, sterility requirements for injectables, dissolution and water-quality considerations for powders, target species, indications and withdrawal periods. Registration evidence must correspond to the exact dosage form and strength. Never infer dose, duration or interchangeability from the active-ingredient name alone.