: A common subacute or chronic effect is peripheral neuropathy , which causes numbness, tingling ("pins and needles"), and weakness in the extremities. Internal Complications :

: Historic cases have documented post-arsenical obstructive jaundice , sometimes following treatments that used organic arsenicals (like those once used for syphilis).

: Long-term "post-exposure" effects include increased risks for cancers of the bladder, lungs, and skin.

Post-arsenical obstructive jaundice complicated by xanthomatosis and diabetes mellitus. National Institutes of Health (.gov) Post-Arsenical Lichen Planus - PMC Post-Arsenical Lichen Planus - PMC. National Institutes of Health (.gov) Arsenic Poisoning: Causes, Symptoms & Treatment

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

: Onset of nerve-related symptoms like polyneuropathy.