Molluscicide

Molluscicides are chemicals that kill molluscs. They are also known as snail baits, snail pellets, or slug pellets. These pesticides against molluscs are usually used in agriculture or gardening, in order to control gastropod pests specifically slugs and snails which damage crops or other valued plants by feeding on them.
A number of chemicals can be employed as a molluscicide:

Quicklime slaked lime, and kainite, respectively kill by dehydration. Hundreds of kilograms per hectare are required.
Metal salts such as iron phosphate, aluminium sulfate, and ferric sodium EDTA, relatively non-toxic, most are approved for use in organic gardening
Metaldehyde
Niclosamide
Acetylcholinesterase inhibitors, highly toxic to other animals and humans with a quick onset of toxic symptoms.

Many chemicals have been developed as molluscicides.
Slug pellets contain a carbohydrate source as a bulking agent.