Do antibiotics make you drowsy?

Even when the side effects don't necessarily state that it could cause drowsiness? I had ingrown toenail surgery and the infection was so bad I had to be put on Cephalexin. The main side effects are dizziness and nausea. But all day and night today, I have been sleeping and when I get up to walk my whole body... show more Even when the side effects don't necessarily state that it could cause drowsiness? I had ingrown toenail surgery and the infection was so bad I had to be put on Cephalexin. The main side effects are dizziness and nausea. But all day and night today, I have been sleeping and when I get up to walk my whole body just feels weak. Could this be an unlisted side effect, or could I be mistaking dizziness for fatigue?
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