Guernsey's health department is urging all users or former users of a controversial cancer drug GcMAF to contact their GP.
The unlicenced drug has been banned after its UK factory closed amid fears materials used aren't fit for human consumption.
Hundreds of islanders have already pleaded with politicians and health officials to have the ban lifted.
The Health Department in Guernsey has issued a fact sheet in response to questions over the import ban on GcMAF.
The unlicensed medicine was banned by authorities earlier this month, after the UK regulator warned it could pose a significant risk to health.
Hundreds of people have pleaded with politicians and health officials to have the ban lifted.
Some say the protein drug has been keeping them alive.
The weekend event coincides with International Pride Month and the 51st anniversary of the Stonewall riots.
The scheme has been backed by the island's Lieutenant-Governor, and is the first of its kind in the Channel Islands.
Sunny spells and isolated light showers. After dusk fair spells with isolated showers.