Eso Potion Of Ravage Health, Since Ravage tends to hit an extra time on the Crown Poison, you could consider this then to be 350-450 dps (since you also take into account
POTION 14 : ESSENCE OF LINGERING HEALTH - YouTube
Damage Magicka Poison IX (Restore Health, Sustained Restore Health Lingering Health, Ravage Magicka) - YouTube
Easy Alchemy Leveling Guide for ESO - How to level Alchemy - AlcastHQ