Killer nail pills alert.
The Department of Health has told GPs to be careful how they prescribe Sporanox and Lamisil - used to treat toe nail fungus - after they were linked with 22 deaths from heart and liver failure.
The infection is extremely common and last year more than 600,000 prescriptions were issued for the tablets.
Warnings already exist about giving both drugs to patients with heart and liver illnesses. But concern has been sparked by the discovery that healthy people have become ill after taking the tablets.
A spokesman for the Medicine Control Agency said: "Doctors have been told to give Sporanox to heart patients only when absolutely essential.
"We have also repeated the warnings about the risks of liver failure caused by both drugs."