Damage Reduction and negating special effects.

[Yogibear41]

Pg. 41 of the Rules Compendium states that: "Whenever damage reduction completely negates the damage from an attack, it also negates most special effects that accompany that attack, such as injury poison and injury disease"

Is there say a specific list somewhere that goes into more detail on this subject, obviously poison and disease are stopped, but are things such as a vampire or Wight's energy drain stopped, are things that also deal ability damage such as a banedead or blood amniote also stopped if the attack fails to deal any damage.

[tyckspoon]

It's going to be DM's call for a lot of it - there is no consistent labeling or standardized callout for 'this has to do injury to apply and will not work if no HP damage is caused.' ..except for Injury poisons, of course.

[Darg]

Whenever damage reduction completely negates the damagefrom an attack, it also negates most special effects that accompany the attack, such as injury type poison, a monk’s stunning, and injury type disease. Damage reduction does not negate touch attacks, energy damage dealt along with an attack (such as fire damage from a fire elemental), or energy drains. Nor does it affect poisons or diseases delivered by inhalation, ingestion, or contact. Attacks that deal no damage because of the target’s damage reduction do not disrupt spells.

The DMG has a list of effects. As long as the items don't conflict with the RC it should be accurate.

[Thurbane]

Yep, the wording "such as" leaves it pretty open to DM ruling, so long as it isn't one of the specific exceptions listed in the DMG (energy damage, energy drain).

Out of curiosity I just checked the Pathfinder SRD, to see if it gives a more comprehensive list, but it seems to use almost identical wording to the DMG.

[Yogibear41]

Ah the DMG actually has more examples than the rules compendium(assumed rules compendium would have more), and it has a list of Does Not negate this should work for most things thanks.