Ephedrine Movies

Ephedrine Video No. 1 - Explore solid-state phase transitions during crystallization of ephedrine under polarized illumination at a magnification of 100x with a playing time of 15.0 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (6.27 MB).

Ephedrine Video No. 2 - Captured with polarized illumination at a magnification of 200x, crystallites of ephedrine slowly form, dissolve, then reform during evaporation of the solvent. This digital video was made with time-lapse cinemicrography at a playing time of 18.6 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (7.81 MB).

Ephedrine is a member of the adrenergic bronchodilator class of drugs that serve to open up the bronchial tubes of the lungs. Since the 1920s, synthetic versions of this drug have been used as a bronchodilator and nasal decongestant, and for controlling urinary incontinence. Although ephedrine is too slow acting to treat acute allergic attacks, it replaces epinephrine in nonemergency treatment of allergic reactions.