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 US company hoped would bring in as much as $20 billion.

GSK said that as well as ending the Novartis venture it would start a strategic review of Horlicks and other consumer nutrition products, sparking another potential industry shake-up

Consumer remedies sold over the counter have lower margins than prescription drugs, but they are typically very well known and durable brands with loyal customers.

"The proposed transaction addresses one of our key capital allocation priorities and will allow GSK shareholders to capture the full value of one of the world's leading consumer healthcare businesses," Walmsley said in a statement on Tuesday.

Although some pharmaceuticals groups have been keen to hold consumer care products, intense price competition online, mainly from Amazon, as well as cheaper store-brand products, have led others to doubt their stable returns longer-term.

The British group's shares jumped 4.5 per cent, outperforming a 1.8 per cent gain in the STOXX Europe 600 Health Care.

GSK said that as well as ending the Novartis venture it would start a strategic review of Horlicks and other consumer nutrition products, sparking another potential industry shake-up. The review will include an assessment of its shareholding in its Indian subsidiary.

"It (the deal) also removes uncertainty and allows us to plan use of our capital for other priorities, especially pharmaceuticals R&D," Walmsley said, adding that the purchase would boost adjusted earnings and cash flows.

Pfizer has been struggling to sell its consumer healthcare business after GSK and Reckitt Benckiser both dropped out of the bidding, while differences in price expectations have also hobbled German drugmaker Merck KGaA's attempts to sell its consumer products unit.

And GSK’s call for bids for its consumer healthcare nutrition brands - with a regional focus on India - is likely to detract attention from Merck's asset, which relies heavily on sales of vitamins and dietary supplements in emerging markets.

NOVARTIS SHARES RISE

Barclays analysts said Glaxo was paying less than 17 times expected 2018 core earnings for the joint venture stake, while sources have told Reuters that both Merck and Pfizer had asked for up to 20 times for their respective assets.

Yet analysts at Baader Helvea welcomed the cash price fetched by Novartis as "excellent news" for the Swiss company, whose shares opened 1.9 per cent higher.

Under the 2014 deal to pool their consumer assets, Novartis had the right so sell its 36.5 per cent stake to Glaxo from this month.

The transaction is set to complete in the second quarter, subject to necessary approvals.

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