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Medicine library

43 medicines and when they work best in your day.

Type of medicine

Best time of day

6 results

Levothyroxine

Synthroid, Euthyrox

On waking, empty stomach — or bedtime

Hormones & diabetesStrong evidence

Prednisolone / prednisone

Deltasone, Pred Forte (oral forms)

Morning

Hormones & diabetesStrong evidence

Hydrocortisone (replacement)

Cortef, Plenadren

Largest dose on waking, smaller early afternoon

Hormones & diabetesStrong evidence

Metformin

Glucophage, Glucophage XR

With meals (XR with the evening meal)

Hormones & diabetesStrong evidence

Glimepiride

Amaryl

With breakfast

Hormones & diabetesStrong evidence

Insulin glargine

Lantus, Toujeo

Any time — same time daily

Hormones & diabetesStrong evidence

For education only

Chronodose summarises published research on medicine timing. It is not medical advice. Always talk to your doctor or pharmacist before changing when or how you take a medicine.

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