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The Medicines and Healthcare Products (MHRA) on Wednesday issued a class 4 alert for three batches of Ativan 4mg/1 ml Solution for injection (Lorazepam).

Pfizer Limited has informed the government agency that for the products with batch numbers 4091, 4092 and 4094 description on the carton was changed from 10 x 1ml ampoules to 10 x 2ml ampoules.

This is because of the recent update on the carton label which reflects the size of the ampoules.

“The size of the ampoules (2ml) has not changed and the label on the ampoules remains unchanged and states ‘4mg in 1ml’,” an official statement read.

Batches with the revised labels are expected to become available during this year’s the third quarter.