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The SEM morphology with different tadalafil (TD) particle sizes (top) and surfaces of TD-filled orodispersible films (TDFs; bottom). (a) TDF-1 TD particles (10,000×), (a′) TDF-1 surface (3000×), (b) TDF-2 TD particles (10,000×), (b′) TDF-2 surface (3000×).
