Table 2. Level of tetrodotoxins (TTXs) and overall toxicity in Phos senticosus specimens (n = 29) collected from the poisoning incident in Binh Thuan, Viet Nam in March 2021
| Value | Level of TTXs (µg/g) | Overall toxicity (MU*/g) |
| anh-TTX | 4-epiTTX | TTX |
| Range | 5.3–603.9 | 1.9–233.7 | 1.7–544.5 | 10–2672 |
| Mean ± SD | 60.7 ± 126.5 | 23.3 ± 24.3 | 46.0 ±107.6 | 229 ± 526 |
One MU is the dose of TTXs which kills a 20 g male mouse (ddY) in 30 min (Nakamura & Yasumoto, 1985).