Arsenical -

: Chronic exposure often leads to distinctive skin changes that persist or appear after exposure stops. This includes hyperpigmentation (often described as a "raindrop" appearance) and hyperkeratosis , which are hard patches on the palms and soles.

Post-arsenical obstructive jaundice complicated by ... - PubMed arsenical

Medical literature documents several specific "post-arsenical" complications: : Chronic exposure often leads to distinctive skin

The timing of these conditions varies based on the type of exposure: arsenical

: Onset of nerve-related symptoms like polyneuropathy.