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6000 x 4748 pixels
50.8 x 40.1 cm ⏐ 20.0 x 15.8 in (300dpi)
GREG WILLIAMS / SCIENCE PHOTO LIBRARY GREG WILLIAMS / SCIENCE PHOTO LIBRARY
Pseudoephedrine is stimulant of the phenethylamine class. The compound is used as a decongestant, primarily for its ability to shrink swollen tissue in the nose, throat and sinus linings. Pseudoephedrine was available as an over-the-counter drug for years but has been restricted in many countries due to concern for its use as a performance-enhancing and recreational drug and as a starting point for the synthesis of methamphetamine. Atoms are represented as spheres and are colour-coded: carbon (black), hydrogen (white), nitrogen (blue) and oxygen (red).
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