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One million Viagra pills are being stockpiled over fears of a hard Brexit .

As the UK hurtles towards crashing out of the EU with no deal next March, some businesses are preparing for the worst.

Digital healthcare company, Zava, are based in London and specialise in prescribing sexual health treatments for patients who are embarrassed about going to see their GP.

The company, who have a million active patients in the UK, is now building up an emergency supply to make sure they can continue to fulfil their patients prescriptions.

(Image: Getty)

Zava, whose customers include Superdrug, usually has two weeks of stock.

However, chief executive David Meinertz has revealed the firm plans to build up a three or four months supply - or about one million pills- by the end of the year.

He said: "We've gone through the different medicines we typically prescribe in volumes and looked at various ways of sourcing them to make sure that if it's really coming to a no-deal or a hard Brexit we're prepared.

"Whatever happens we need to make sure we can care for the patients who come to us."

Drugs firms are worried about medical supply chain chaos between the EU and Britain if no deal is reached.

Last month, it emerged hospital bosses have warned of medicine shortages.

Meanwhile, US pharmaceutical giant Pfizer, which makes Viagra, also hinted it was stockpiling pills.

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The key ingredient in Viagra is made in the Republic of Ireland while the pills are manufactured in France.

It's estimated that more than five million Brits are affected by impotence.

It can be caused by heart disease and other physical conditions, or psychological ones such as depression.