What happens if pen ink gets onto your tongue?

If pen ink gets onto your tongue, it can taste unpleasant and may cause minor irritation. Most inks are non-toxic in small amounts, but some may contain harmful chemicals, so ingestion should be avoided. If a large amount is swallowed or if you experience any adverse reactions, it's best to seek medical advice. Generally, rinsing your mouth with water can help remove the ink and alleviate any discomfort.