Sorry Tilly. Think I cut it off on my phone- http://www.nhs.uk/medicine-guides/pages/MedicineOverview.aspx?condition=Gastro-oesophageal%20reflux%20disease&medicine=lansoprazole
Yes - it's fine - unless your GP has specifically banned booze as part of treating whatever underlying stomach issues the lansoprazole has been prescribed for.
I took Lanzoprazol for a while and it's Ok to drink wine. Am now on Omeprazole which is taken twice a day. Am sipping a nice glass of Sauve Blanc at the moment! You'll be fine! The only rule is try not to eat until about half an hour after taking the tablet.