Metformin slows glucose absorption. Can I write it this way instead of Metformin slows down glucose absorption?
The exact term "slows glucose absorption" has more than 200,000 hits in Google, but only two (2) if I search with site:gov
"slow the passage of food" is much more common than "slow down the passage of food," though. "Slow the speed" is also common. It seems to me that "slow" alone can be used when things are obviously moving already. "Glucose absorption" does not sound so movable and my first example can be actually a bit awkward.