Drug Side Effects

noun a state of being sleepy or lethargic

• The medication may cause drowsiness as a side effect.
• I feel so drowsy after staying up late last night.
• I can't keep my eyes open, I'm so drowsy.
• The drowsiness of winter settled over the town, making everyone feel sleepy and lethargic.

noun a feeling of sickness with an inclination to vomit

• The patient experienced severe nausea after taking the new medication.
• I felt a wave of nausea after riding the roller coaster.
• That food gave me major nausea, dude.
• The nauseating smell of the garbage made me want to leave immediately.