泡腾片在白色影棚背景下溶解于半杯清水中

-up sequence shows a NAC Long effervescent tablet dissolving in a standard clear glass, half-filled with water, on a white table and light grey studio background. The tablet releases bubbles, creating a dynamic effervescent effect, then fully dissolves, leaving a clear solution. This visual represents the powerful, clean action of N-Acetylcysteine as a mucolytic agent for respiratory health, captured in high-definition for pharmaceutical and healthcare marketing.