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The Guardian - UK
The Guardian - UK
Science
Jon Ungoed-Thomas and Sam Jones in Madrid

‘They thought I had cancer’: painkiller banned in UK linked to Britons’ deaths in Spain

Composite image showing a box of Nolotil and two large maroon pills lying beside it, with a swirling colour wash in red and yellow, like the Spanish flag, over the whole image
Metamizole, often sold as Nolotil, is banned in several countries over its link to the condition agranulocytosis. Illustration: Observer Design

A patients group representing several British victims has launched legal action against the Spanish government over claims it failed to safeguard people against the potentially fatal side effects of one of the country’s most popular painkillers, involved in a series of serious illnesses and deaths.

The drug metamizole, commonly sold in Spain under the brand name Nolotil, is banned in several countries, including Britain, the US, India and Australia. It can cause a condition known as agranulocytosis, which reduces white blood cells, increasing the risk of potentially fatal infection.

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