Thomson Reuters GlaxoSmithKline has bought Novartis out of their joint venture for $13 billion. GlaxoSmithKline will now have full control of products including Sensodyne toothpaste, Panadol headache tablets, muscle gel Voltaren, and Nicotinell patches. (Reuters) - GlaxoSmithKline is buying Novartis out of their consumer healthcare joint venture for $13 billion, taking full control of products including Sensodyne toothpaste, Panadol headache tablets, muscle gel Voltaren, and Nicotinell patches. GSK's biggest move since Emma Walmsley became chief executive last year follows the British drugmaker's decision last week to quit the race to buy Pfizer's consumer healthcare business, endangering an auction the U.S.