Related Clues:
- Carbolic and sulphuric ender
- It'll change your mind
- Hallucinogenic letters
- Base neutralizer
- Scathing
- Target of milk of magnesia
- Blotter substance
- It was heavily dropped about four decades ago
- It turns litmus paper red
- The ''A'' in DNA
- The Trip subject, 1967
- One may trip on it
- Timothy Leary turn-on
- Agent for many a trip
- Carbolic ___