Sanofi-Aventis has recalled 30 batches of the anticoagulant Clexane (enoxaparin). The move was made after quality control tests found there was the possibility that there could be an over-concentration of the active ingredient in a limited number of syringes.

The syringes were delivered to Europe, Latin America, Asia and Africa and the UK is on the list of countries which could be affected. The company stated: "It is important to note that the enoxaparin active ingredient is not the subject of this recall." The problem stemmed from a change to the syringe filling process that was put into place in April 2005. Sanofi-Aventis is to be in contact with all the relevant health authorities and patients, healthcare professionals, pharmacists and wholesalers are to be informed.