Thanks for posting query.
The household toilet cleaner Harpic contains hydrochloric acid (~10%) as the active ingredient, along with butyl oleylamine. Hydrochloric acid in the cleaner is what causes the symptoms of poisoning
. Well, it’s a less violent acid comparatively. It does not cause serious damage to any of the vital organs but can damage the mucus membrane in the stomach causing bleed.
Dr Sourav Ganguly