Tang Clan Pharmacopoeia

The Tang Clan's ancestral medical text, the only medical book in the world that uses poison as medicine.
It blends the teachings of Miaojiang and Buddhism: a single bowl of water holds eighty-four thousand insects, and the insects are poison. They too divide into the Five Elements and Six Harmonies, corresponding to the five organs and six viscera. Too much brings harm, too little brings illness, exhausting them brings weakness, and mistaking them brings madness.
Humans are not untouched by the Five Poisons; the poison simply has not yet stirred. Only by nourishing it with medicine, making it follow the heart and not resist, turning the body's poison to one's own use, can a hundred illnesses be kept from invading.
Effects
Requirement: Scholarship 20 (LV5)
| Level | Effect | Martial Points |
| LV1 | Poison Resistance 2, Paralysis Resistance 2 | 5 |
| LV2 | Poison Resistance 3, Paralysis Resistance 3 | 5 |
| LV3 | Poison Resistance 4, Paralysis Resistance 4 | 5 |
| LV4 | Poison Resistance 6, Paralysis Resistance 6 | 5 |
| LV5 | Poison Resistance 8, Paralysis Resistance 8 | 5 |
| LV6 | Poison Resistance 9, Paralysis Resistance 9 | 5 |
| LV7 | Poison Resistance 10, Paralysis Resistance 10 | 5 |
| LV8 | Poison Resistance 12, Paralysis Resistance 12 | 5 |
| LV9 | Poison Resistance 14, Paralysis Resistance 14 | 5 |
| LV10 | Poison Resistance 15, Paralysis Resistance 15, Medicine LV1 | 5 (50) |
- Medicine: When you Brace, recover HP based on maximum HP (2% at level 1, up to 10%), and additionally metabolize accumulated poison and paralysis buildup. Affects certain Story events.
Acquisition Method
- After the siege event, return home and follow the Second Senior Brother; he gives it to you (Tang Zheng favorability 3.5★)
- Early Nov Year 2 — the Fourth Senior Brother buys it ($1200)