Quick answer

We found no study comparing times of day for echinacea, or taking it with and without food. Trials split the daily amount into three or four doses, and the European monograph gives single doses of 1.5 to 4.5 ml of pressed juice for no more than 10 days. Trouble sleeping is among its reported side effects.^1,2,3,4,5

Key facts

None of the studies NIH describes, or the two medicine studies, compared one schedule with another or echinacea with and without food.^1,2,3
Three studies split the daily amount across the day, as four doses in two of them and three doses in another.^1,2,3
The European monograph gives single doses of 1.5 to 4.5 ml of pressed juice, up to 6 to 9 ml a day, for no more than 10 days.⁴
Trouble sleeping is among echinacea's reported side effects, and stomach upset is the most common.^5,6
In the 8-day study, echinacea root slowed the body's clearance of caffeine by about a quarter.²

When the studies gave it

The research describes set points through the day rather than one best moment. The 5-day trial gave an extract four times a day, one medicine study gave root four times a day for 8 days, and the other gave 500 mg three times a day for 28 days. The 4-month trial reports only a daily amount.^1,2,3

None of them asked whether a morning dose differs from an evening one. There is no tested best time, and any advice that names an hour is a habit or a guess rather than a finding.^1,2,3

Morning, afternoon or night

Dividing the monograph's daily juice by its single dose gives roughly two to six doses a day. The monograph does not say when in the day they belong.⁴

What’s in ours

Men's Multi: Immune Support, 110 mg per serving, from the label
Immune Support: Echinacea purpurea Extract, 200 mg per serving, from the label

Our two products that contain echinacea give different directions. One says two capsules daily with water and names no hour. The other, Men's Multi, says two capsules in the morning with a meal. Both are label directions, not findings, because no study compared morning with evening or a meal with no meal.^1,2,3

With food or on an empty stomach

We found no study that compared echinacea with and without a meal, so we cannot say that food makes any difference. Stomach upset is the side effect most often reported, which is worth telling your doctor or pharmacist about if it happens.^1,6

How many days in a row

Timing also means when to stop. The monograph's 10-day limit is the clearest figure, and NCCIH describes echinacea as likely safe only for short periods. The medicine studies ran 8 and 28 days, so a longer daily course goes beyond what they tested.^2,3,4,6

Sleep, caffeine and medicines

Trouble sleeping has been reported.^1,5

In the 8-day study, echinacea root slowed the body's clearance of caffeine, which the enzyme CYP1A2 handles, by about a quarter.²

NCCIH says there are theoretical reasons to suspect that echinacea might interact with caffeine. If you notice trouble sleeping after starting it, stop and ask your doctor or pharmacist rather than guessing at a new time of day.^2,6

The most common side effects are digestive: stomach upset, nausea, stomach pain and diarrhea.^5,6

Ask your pharmacist or doctor first

The warfarin label names echinacea among botanicals that can interact with warfarin through CYP450 liver enzymes, and asks for more frequent INR checks whenever a botanical is started or stopped. MedlinePlus also lists echinacea among herbal products that may interact with warfarin.^7,8

On the medicine's label

Ask your pharmacist or doctor first

Echinacea might make medicines that suppress the immune system work less well, because it may stimulate immune activity. NIH and NCCIH both name this as a possible interaction on theoretical grounds.^1,5,6

Expected from how the two work, not shown in studies

No source we read gives a gap in hours to leave between echinacea and a medicine, so we give none. Tell your prescriber before you start, because the warfarin label asks for more frequent INR checks whenever a botanical is started or stopped.^1,7

Do not use it if you are allergic to ragweed, daisies or other daisy-family plants^4,6
Ask first if you have an autoimmune condition, an immune deficiency or a white blood cell disorder⁴
Ask first if you are pregnant or nursing, or want to give it to a child under 12^1,4
Ask your doctor before taking it for more than 10 days at a time⁴

Questions people ask

What is the best time to take echinacea capsules?

We found no study that compared times of day. The studies we read split the daily amount into three or four doses, and the label is the schedule to follow. Ask your doctor before taking it for more than 10 days at a time.^1,2,3,4

Is it okay to take echinacea at night?

We found no study that compared evening with morning doses. Trouble sleeping is among echinacea's reported side effects, so if you notice it, stop and ask your doctor or pharmacist.^1,5

What is the best time to take echinacea drops?

The European monograph for pressed juice gives single doses of 1.5 to 4.5 ml and names no time of day. Drops differ in strength and in what they are made from, so follow the label of the product you have.^4,9

Should I take echinacea with food?

We found no study that compared echinacea with and without food. Stomach upset is its most common reported side effect, so tell your doctor or pharmacist if it upsets your stomach.^1,6

See what we make

Every product shows its whole label and what its lab report covers. The store opens soon.

See the Full Measure line Immune Support Men's Multi

Sources

This page is information, not medical advice. Talk to your doctor or pharmacist about your own situation.