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Ketamine Category: HallucinogensSedatives

(also called: special K, K, vitamin K)

How it’s used

Ketamine is an anaesthetic. You can get it as a white powder to snort, a liquid to inject or a tablet to swallow.

Short-term effects

Long-term effects

Other dangers

If you are pregnant

Do not use if you are pregnant as we don’t know enough about the risks to your baby


You have a fairly high risk of becoming psychologically addicted, so you find it hard to cope without it.


No known physical withdrawal symptoms

What help is available?

It is always safer not to use, but if you do, follow harm reduction information. See our ketamine campaign

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The HSE and Union of Students in Ireland (USI) ask students to think about drug safety measures when using club drugs
Harm reduction messages from the #SaferStudentNights campaign.
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