> - because I am no longer tolerant towards it, caffeine makes other drugs such as acetaminophen (aka paracetamol aka Tylenol) and acetyl salicylic acid (aka as

> - because I am no longer tolerant towards it, caffeine makes other drugs such as acetaminophen (aka paracetamol aka Tylenol) and acetyl salicylic acid (aka aspirin) much more effective. Do you mean combinations of paracetamol + caffeine are now more effective for you? Or is pure paracetamol also more effective?