Treat impaired balance as a practical safety issue
NHS guidance advises stopping what you are doing and sitting or lying down if melatonin makes you dizzy. Do not drive, cycle or operate machinery while affected, and avoid alcohol because it can worsen impairment. Feeling that the product is natural does not make impaired balance harmless. [1]
Some symptoms need more urgent assessment
Fainting, confusion, a spinning sensation or changes in vision are reasons for urgent medical advice in NHS guidance. Breathing difficulty or sudden mouth or throat swelling calls for emergency help. The onset after a tablet does not establish that every severe symptom is a routine drug effect. [1]
Bring the complete regimen to the review
Imagine dizziness follows the addition of a second sleep aid. Other medicines can increase or decrease melatonin’s sedating effects. Record the product, amount and timing and ask a clinician or pharmacist to review them. Do not compensate with extra caffeine or continue a hazardous activity while waiting for the effect to pass. [2][3]
| Situation | Response or distinction |
|---|---|
| Mild dizziness | Stop and sit or lie down |
| Fainting or confusion | Urgent assessment |
| Driving while affected | Avoid |
Sources for this article
- Side effects of melatonin - NHS
Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product. - Taking melatonin with other medicines and herbal supplements - NHS
Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product. - Common questions about melatonin - NHS
Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.