Is Indigo Carmine Toxic in Strepsils?

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SUMMARY

Indigo Carmine, a colorant used in Strepsils, is noted for its potential toxicity, particularly as an irritant to the respiratory tract, skin, and eyes. Despite these concerns, the presence of Indigo Carmine in Strepsils suggests that the dosage is sufficiently low to be considered safe for medicinal use. The discussion emphasizes the principle that toxicity is dose-dependent, indicating that even substances deemed harmful can be safe in small quantities. The consensus is that the amount of Indigo Carmine in Strepsils is minimal and primarily serves aesthetic purposes.

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rohanprabhu
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When I checked the wikipedia page for Indigo Carmine, the article there says : "Indigo carmine is harmful to the respiratory tract if swallowed. It is also an irritant to the skin and eyes.".

But on a Streplis pack, menthol flavour it says: "Contains permitted colours: Indigo Carmine".

If it was as toxic as it is said on wpedia, it shouldn't be a part of medicines even in a small amount.. so what exactly is the case?
 
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There is a saying "toxicity is just dosage".
Pretty much anything is bad for you in high enough doses, even Oxygen and water - similairly almost anything is harmful in small enough amounts.

I suspect that there is very very little of the dye needed to make the strepsils a pretty colour.
 

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