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MHRoC-Iodrome Card 001
English: Iodrome
Japanese: ドスイーオス
Korean: 도스이오스
Nicknames: (?)
English: The Ioprey Leader
Japanese: (?)
General Information
Species: Bird Wyvern
Element/s: None
Ailment/s: StatusEffect05 Poison
Weakest to: Status Effect-Thunderblight MH4 Icon Thunder
Weakness Sign: Will flee to another Area
Limping (MH4)
Signature Move: Poison Spit
Habitats: Primal Forest, Volcanic Hollow, Heaven's Mount, Unknown Great Forest, Lava Island
Monster Size: Gold Crown Large 1641.06

Gold Crown Small 619.7

Monsters in Relation: Ioprey, Genprey, Gendrome, Velociprey, Velocidrome, Giaprey, Giadrome
Generation: First

Iodrome are Raptorial Bird Wyverns introduced in Monster Hunter. They are known to inhabit subtropical zones and can be encountered at Low, High and G Ranks in Monster Hunter Freedom Unite and Low and High ranks in Monster Hunter 4.

MH4-Iodrome and Ioprey Render 001


They are significantly larger than normal Ioprey and possess a larger crest. Unlike other 'dromes, Iodromes have a more amphibian look, with salamander-like skin that seems to glisten with moisture, and frog-like throat sacs. They also lack the sharp claws of their raptor relatives, relying more on poison to bring down prey and enemies.


Iodromes present a good challenge for beginner hunters. Although not as strong as Flying Wyverns, they can quickly cripple hunters with the power of their numbers and poison. Iodromes are a threat due to their speed, agility, considerable strength and poison.

When threatened, Iodromes spit Poison from the poison sac in their throat.


Iodromes are the leader of a pack of Ioprey, and always travel with their pack for protection.


They are often seen in the various different Swamp and Volcano zones, although as of Monster Hunter 4 Iodrome can also be found in the Unknown Great Forest.

Game Appearances

Chronological Appearances
First US / EU Appearance: First JP Appearance: Latest Appearance:
Logo-MH1 (2004) Logo-MH1 (2004) Logo-MH4U (2015)

In-Game Description

Monster Hunter Freedom 2 / Monster Hunter Freedom Unite
MHFU-Iodrome Icon The alpha monster that leads an Ioprey pack. They are larger and have a more prominent crest. Found in subtropical zones, they spit a poison that can sap the life force of prey.
Monster Hunter 4
MH4-Iodrome Icon 集団行動をするイーオスのリーダー。 少し大柄で大きなトサカが特徴。 亜熱帯を中心に、広範囲に生息している。 体内に強力な毒袋を持ち、毒液を吐きつけ、獲物を弱らせてしとめる。
Threat Level (危険度): ★★★
Monster Hunter Frontier G
MHFG-Iodrome Icon (?)
Monster Hunter Online
MHOL-Iodrome Icon 红速龙与其它速龙不同,它的牙齿和前爪并不锋利,但是它能向敌人喷吐毒液,红速龙王便是其中的佼佼者。

Analysis and Guides

For details on older games this monster has appeared in, see Iodrome Guides.

Iodrome Analysis for Monster Hunter 4
Cutting Damage
(Click Image to Zoom)
(Coming Soon)
Impact Damage
(Click Image to Zoom)
(Coming Soon)
Shot Damage
(Click Image to Zoom)
(Coming Soon)
Brighter Red means more damage, while Darker Red means lesser damage.

Raw Hitzone Damage Data
Hitzone Cutting Damage Impact Damage Shot Damage
Body 80 80 90
Element Hitzone Damage Data
Hitzone Fire Fire Water Water Thunder Thunder Ice Ice Dragon Dragon
Body 20 30 30 10 10
This Monster is weakest to: Status Effect-Waterblight MH4 Icon Water or Status Effect-Thunderblight MH4 Icon Thunder

Status Effects Data
Poison Paralysis Sleep Stun Fatigue Blast Mount
Initial Tolerance N/A N/A
Max Tolerance N/A N/A
Tolerance Increase N/A N/A N/A N/A N/A N/A N/A
Duration N/A N/A N/A
Damage N/A N/A N/A N/A N/A N/A
Item Effectiveness Data
Item Name Able
Normal Enraged Fatigued
Pitfall Trap (?) N/A N/A (?)
Shock Trap (?) N/A N/A (?)
Flash Bomb (?) N/A N/A (?)
Sonic Bomb (?) N/A N/A (?)
Meat (?) N/A N/A (?)

Analysis Data Source/s:

Music Themes

Battle 1 ~Drome~ (no intro) Monster Hunter 4 OST03:04

Battle 1 ~Drome~ (no intro) Monster Hunter 4 OST

MH4: Seltas, Great Jaggi, Velocidrome, Gendrome, Iodrome, Lagombi Battle Music


  • It has more health than the other Dromes.

  • Iodrome has a pin attack.
  • Iodrome's crest is breakable.
  • Iodrome can now enter rage, be carved 3 times and limp when weakened.
  • Now when Iodrome does its Poison spit attack, it leaves a pool of poison on the ground for a short time.
  • It can now call on Ioprey during battle, whereas in previous games it could not.
  • It can become infected by the Frenzy Virus.
  • In a CG video, Iodrome is seen commanding a pack of Ioprey to attack a Zinogre. They almost succeed in killing it, but Zinogre succumbs to the Frenzy Virus and ravages the Iodrome, who is promptly killed and devoured by its own pack, now also infected by the virus.

  • Iodrome can be kept as a pet.
  • HR100 Iodrome's have been seen travel in pairs, following each other closely through different areas.
  • G-Rank Iodrome gains a few new attacks; an improved bite that releases poison and a improved poison spit where after the projectile touches the ground it forms a toxic puddle that eventually fades away. Other new attacks include a high speed charge and a jump in air whilst spitting poison move, always followed by landing and delivering an uppercut that launches hunters.
  • Iodrome can be attacked by Baruragaru mid-quest; if it succumbs to the attack, Baruragaru will subsequently be able to use poison-based attacks.

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