Medicine library
43 medicines and when they work best in your day.
Type of medicine
Best time of day
19 results
Simvastatin
Zocor
Evening
CholesterolStrong evidence
Pravastatin
Pravachol
Bedtime
CholesterolModerate evidence
Fluvastatin
Lescol, Lescol XL
Evening (capsules)
CholesterolModerate evidence
Doxazosin
Cardura
Bedtime
Heart & blood pressureModerate evidence
Aspirin (low dose)
75–100 mg 'baby' aspirin
Evening / bedtime
Heart & blood pressureEmerging evidence
Montelukast
Singulair
Evening
Asthma & allergyStrong evidence
Cetirizine
Zyrtec
Evening
Asthma & allergyModerate evidence
Levothyroxine
Synthroid, Euthyrox
On waking, empty stomach — or bedtime
Hormones & diabetesStrong evidence
Famotidine
Pepcid
Bedtime
Stomach & gutStrong evidence
Melatonin
Circadin, supplements
1–2 h before bedtime
Brain, mood & sleepStrong evidence
Zolpidem
Ambien, Stilnox
Immediately before bed
Brain, mood & sleepStrong evidence
Mirtazapine
Remeron
Bedtime
Brain, mood & sleepStrong evidence
Donepezil
Aricept
Bedtime (or morning if dreams disturb sleep)
Brain, mood & sleepModerate evidence
Lithium
Priadel, Lithobid
Evening (once daily)
Brain, mood & sleepModerate evidence
5-Fluorouracil (chronomodulated)
5-FU infusion
Overnight infusion, peak ~04:00
Cancer therapyEmerging evidence
Oxaliplatin (chronomodulated)
Eloxatin
Daytime infusion, peak ~16:00
Cancer therapyEmerging evidence
Mercaptopurine
Purixan, 6-MP
Evening, same time daily
Cancer therapyMixed evidence
Prednisone (delayed-release)
Lodotra, Rayos
Around 22:00
Pain & inflammationStrong evidence
Desmopressin
DDAVP, Noctiva
Bedtime
Bone, kidney & bladderStrong evidence