Keep the temperature inside the car cool and avoid eating big meals and snacking on carbohydrates, both of which can induce drowsiness.

They differ from older drugs used for the purpose in that they do not diminish alertness or induce drowsiness.

The air was filled with fumes that induced drowsiness.

Comment: it does induce drowsiness but it is the only drug that stops the onset of vomiting episodes if taken in time.

It is sometimes used to induce drowsiness and improve sleep patterns.

It's known to be powerful enough to induce sleep or drowsiness in patients.

Anticholinergics such as scopolamine have also proved effective against motion sickness, but may induce drowsiness.

Even some antibiotics occasionally induce drowsiness or fatigue.

The medication also induces drowsiness or blurred vision, an effect exacerbated by the consumption of alcohol.

Far from invoking a sense of wakeful alertness, the essence seemed only to induce further drowsiness.