Tea drunkenness: what to do if tea makes you feel unwell

“Tea drunkenness”, or cha zui (茶醉), is an informal description of sensations after tea, not a medical diagnosis. People may use it for pleasant relaxation or for nausea, shaking and dizziness. Unpleasant symptoms are a reason to stop, not to pursue the effect.

A gaiwan, serving pitcher and cups on a tea tray.
Photo: Il lupa · CC BY-SA 4.0

Stop drinking first

End the session and avoid further caffeine from other drinks. If dizzy, sit or lie somewhere safe and do not drive. You can sip water if fully conscious and able to swallow normally. Do not try another infusion to push through the feeling.

Do not diagnose from the name

Caffeine can cause shaking, anxiety, palpitations and nausea, but similar symptoms have other causes. Sweating and weakness alone do not establish low blood glucose. Infusion counts and grams of leaf cannot give a reliable caffeine dose; shu and aged white tea can contain substantial caffeine too.

Decide whether you need help

Seek emergency help for chest pain, fainting, breathing difficulty, confusion or palpitations with marked dizziness. Do not wait for a promised “20–40 minutes” to pass. If symptoms persist, worsen or recur, contact a clinician and tell them what you drank and which medicines you take.

Adjust how you drink tea next time

Note what and how much you drank, the time, food and symptoms. Next time, reduce both leaf and total volume; if tea made you feel unwell on an empty stomach, try drinking it after a meal. A sweet snack does not protect you from too much caffeine. Good tea does not have to make you feel unwell.

Questions and answers

Will sugar and water help?

Water does not neutralise caffeine. If hungry and able to eat normally, an ordinary snack is reasonable, but it does not guarantee recovery. If you have diabetes and suspect low glucose, follow your own monitoring and treatment plan.

Are cha qi and tea drunkenness the same?

Cha qi (茶氣) describes subjective effects of tea, and enthusiasts use these terms differently. Neither identifies a medical cause or verifies tea quality or safety.