The new evening ritual is zero proof. See the cans we drink
The Functional Sip
Home / Field notes / Learn the plants

Kanna effects: what it feels like and how long it lasts

Kanna's reputation is social and upbeat. Here's what people actually describe, how long it lasts, and the side effects and interactions to know first.

By The Functional Sip · Updated October 8, 2026
The short answer
People most often describe kanna's effects as a lifted mood, easier conversation and a calm but clear head, usually noticed within 30 minutes to an hour and lasting a couple of hours. Larger amounts can feel sleepy instead. Common side effects are mild (headache, upset stomach, drowsiness), but don't combine kanna with antidepressants or other mood medication.
Our quick picks
A kanna can to start with
Kanna Pomegranate Fusion · from $30.60
Shop now
Affiliate links: we may earn a commission.
A smiling woman holding up a can of Kanna Pomegranate Fusion at a bar

What people say kanna feels like

Kanna's main compound, mesembrine, acts on serotonin, and that shows in how people describe it. The common themes:

Experiences vary from person to person, and the amount matters a lot. Ready-to-drink cans are on the gentle end; concentrated extracts are much stronger.

Kanna effects at different amounts

Start with one can, and don't stack servings.

How long does kanna take to kick in?

Most people say they notice kanna within about 30 minutes to an hour of drinking it. Give it the full hour before deciding on a second.

How long does kanna last?

People commonly describe the effects lasting one to three hours, fading gradually rather than wearing off suddenly.

Kanna side effects

Most reported side effects are mild and more common at larger amounts:

Who should skip kanna

And don't mix kanna with alcohol.

Kanna vs. kava effects

Kava is the calm, end-of-day drink: relaxed body, quiet evening. Kanna is the social one: brighter mood, easy conversation. Kava vs. kanna compared.

The easiest way to try it

A ready-to-drink can keeps the amount consistent and hides kanna's bitter, herbal taste. Botanical Brewing Co.'s Kanna Pomegranate Fusion is one of the few on the market.

See all our picks in the best kanna drinks, or start with what kanna is.

Questions people ask

What are the effects of kanna?

People most often describe a lifted mood, easier conversation and a calm but clear head. Larger amounts can feel drowsy instead.

Does kanna get you high?

Most people don't describe it as a high. It's usually described as a mood lift and a more social, talkative feeling, gentler in drink form.

How long does kanna take to work?

Most people notice it within about 30 minutes to an hour.

How long do kanna effects last?

People commonly describe one to three hours, fading gradually.

What are the side effects of kanna?

The most commonly reported are mild: headache, upset stomach, drowsiness and dizziness, mostly at larger amounts.

Can you drink kanna with antidepressants?

No. Kanna acts on serotonin, so don't combine it with SSRIs, SNRIs, MAOIs or other mood medication.

For adults 21+. Skip it if you take antidepressants.

Pomegranate Fusion
from $30.60
Shop now