and Unisom (doxylamine), have sedative effects that can cause dizziness, drowsiness, and impaired coordination. Severe allergic reactions, such as anaphylaxis, can sometimes cause dizziness.

The Centre for Health Protection said on Monday that the 42-year-old woman had experienced hypersalivation, dizziness, nausea, vomiting and drowsiness about an hour after eating the honey on Sunday.