Around 100 campaigners are expected to stage a protest outside AstraZeneca in Cheshire today.
It's after beagles used for medical testing were moved to the UK when the firm closed kennels in Sweden.
The dogs will be used for research into conditions such as asthma, diabetes and arthritis.
A spokeswoman for Astra Zeneca said animal testing was a 'vital part of the research process.'
But campaigners want the animals freed and rehomed.
Last week, animal rights campaigners protested outside of the Cheshire laboratory.
More top news
St Helens hero hopes to take step towards world title shot
Cool, windy Friday, followed by and even windier Saturday, gusts of 50mph at the coast
Messy set up on Friday, a little bit of everything. Windy, cool, cloud and sunny spells. Very windy on Saturday, coastal gusts of 50mph