The Care Quality Commission in the UK has warned St Martins Care that it must take urgent action at Willow Green Care Home, Darlington, to meet all the essential standards of quality and safety.
Inspectors, who visited the home on 14 February 2012, found that the provider is failing to protect people against the risks associated with the insecure use and management of medicines.
CQC operations director, Amanda Sherlock, said: "This warning sends a clear and public message that St Martins Care Limited needs to address this issue as a matter of urgency or face serious consequences."
"Our inspectors will return to Willow Green Care Home in the near future and if we find that it is not making the required progress we won’t hesitate to use our legal powers to protect the people who use this service," Sherlock added.
The provider must make arrangements for getting, recording, utilising, dispensing, safe administration and clearance of medicines used by the people.
A CQC pharmacy inspector discovered that some of the staff members in the care home could not make out the accurate medication they were administering, a
"We will continue to monitor this care home. If there was evidence that people were at risk, we would take immediate action," Sherlock said.
St Martins Care has not yet made a public response to the report.