Question 1

Can I crush or split Circadin tablets?

Accepted Answer

No. Swallow the tablet whole. Crushing or splitting destroys the prolonged‑release mechanism and can cause a rapid surge of melatonin, reducing effectiveness and increasing side effects.

Question 2

How long can I take Circadin for?

Accepted Answer

Circadin is approved for short‑term use up to 13 weeks. Your doctor will reassess your sleep after this period to decide if further treatment is needed.

Question 3

Can I drink coffee or tea while using Circadin?

Accepted Answer

Caffeine is a stimulant and may counteract melatonin's sleep effects. It's best to avoid caffeine in the evening. Small amounts earlier in the day are usually fine.

Question 4

What if I forget to take Circadin before bed?

Accepted Answer

If you remember within a few hours of your bedtime, take it immediately. If it's already late or you wake during the night, skip the dose to avoid morning drowsiness. Do not take two tablets the next evening.

Question 5

Can I drive after taking Circadin?

Accepted Answer

Circadin can cause drowsiness. If you feel drowsy the next morning, do not drive or operate machinery. Most people find the prolonged‑release formulation does not cause morning hangover, but individual reactions vary.