Glaxo Wellcome will be discontinuing Retrovir 300mg tablets (zidovudine), from August 30. The company's Leukeran 2mg tablets (chlorambucil), pack size 25, have been discontinued and all orders for the product will be filled with the new film-coated tablets (PJ, June 3 p860) n Leo Pharmaceuticals is discontinuing Burinex injection 0.5mg/ml (bumetanide) 2ml and 10ml ampoules, pack size 5, when current stocks are exhausted. The 4ml ampoules will continue to be available, says the company n Link Pharmaceuticals's 500-tablet packs of Nozinan 25mg tablets (levomepromazine maleate) are no longer available. The 84-tablet pack is still available n Lactitol 10g sachets (lactitol monohydrate) have been discontinued by Novartis Consumer Health and current stocks are expected to be depleted in October. The company says that users should be referred back to their doctor, who may consider prescribing lactulose n Celltech Medeva's Tetanus vaccine adsorbed 5ml vials will be discontinued on July 31, when current stock expires.