The proposed minimum price for alcoholic drinks is expected to be revealed by the Scottish Government today.
Health Secretary Nicola Sturgeon will make a "significant announcement" on alcohol policy during a visit to Glasgow Royal Infirmary.
The Alcohol Minimum Pricing Bill is making its second passage through Parliament after defeat in 2010, where the minimum price was 45p per unit.
That figure is expected to be higher this time, with many suggesting the nationalists will set the price at 50p.
Labour is the only party not to have supported the revised legislation when it was debated in March.
Earlier this month, MSPs agreed to a "sunset clause" being inserted into the Bill meaning the law will be reviewed after six years if the policy does not work.
Ministers agreed to reveal the minimum unit price before the Bill reaches stage at Holyrood next week.
A Scottish Government spokeswoman said: "Alcohol consumption costs Scotland's economy £3.6 billion each year, £900 for every adult in the country.
"We need to stem the flow of cheap, high-strength drink, and minimum pricing is one part of our comprehensive alcohol misuse strategy.
"Minimum pricing has attracted the support of the Conservatives, Liberal Democrats and the majority of the Health and Sport Committee, joining an ever-increasing group of medical professionals and significant parts of the drinks and licensed trade industry that recognise the benefits minimum pricing can bring - saving lives and reducing crime."
Willie Rennie, leader of the Lib Dems, said: "A higher than expected price should have an even more significant impact on alcohol misuse that blights lives, communities and families.
"The SNP can count on the support of the Liberal Democrats for minimum pricing."
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