50.5 MB (3.5 MB compressed)
5148 x 3431 pixels
43.7 x 29.0 cm ⏐ 17.2 x 11.4 in (300dpi)
DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Theophylline tablets. Tablets of the drug theophylline. This methylxanthine drug is used to treat respiratory diseases including chronic obstructive pulmonary disease (COPD) and asthma. It does this by relaxing the smooth muscles in the airway, making it easier to breathe.
Model release not required. Property release not required.