Poison senbon(naruto)?!

Question: what does the poison that shinobi send on needles do to an opponent? they all seem to use the same kind,but they never said what kind of poison it was or what it does to an opponent!
please help!

---

---

Answers: what does the poison that shinobi send on needles do to an opponent? they all seem to use the same kind,but they never said what kind of poison it was or what it does to an opponent!
please help!

---

---

its either a stunning poison or a killing poison

---

---

probaly a killing posion

---

---

its definetly not a killing poison because as we all kno sasuke and naruto were bombarded by at least 90 of them and they never died.

---

---

---