Dangerous ‘T20’ tablets linked to hospital admissions in Newcastle

Warning issued after pills found to contain veterinary sedative

T20 drug
Author: Micky WelchPublished 21st Jan 2026

Health officials in Newcastle have issued a warning after tablets sold as ‘T20s’ caused multiple drug overdoses across the area.

Public Health Newcastle confirmed the tablets, marked with a ‘10’ on a white pill, were found to contain medetomidine — a veterinary sedative dangerous to humans. The substance can cause severe breathing issues, vomiting, hypothermia, hallucinations, and, in extreme cases, death.

Authorities are urging people to avoid ‘T20’ tablets completely. If someone collapses or is unresponsive after taking any substance, they stress the importance of calling 999 immediately.

Avoiding risks

A separate statement from Newcastle University Students' Union highlighted important harm reduction tips for students who might use substances.

They recommended avoiding drug use altogether as the safest option but offered additional guidance for those who choose to take them. Suggestions include: researching substances thoroughly beforehand, never using alone, not mixing drugs (including alcohol), and starting with small amounts.

The advice also emphasised the importance of hydration, taking regular breaks, and considering the environment in which substances might be taken to avoid unexpected or dangerous effects.

Anyone experiencing unusual side effects is advised to visit a GP, walk-in centre, or A&E. Public Health Newcastle also encourages individuals to spread the message to others to raise awareness of the risks associated with ‘T20’ pills.

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