and the ingredients as well (although to be fair, i can easily just look that up on the wiki myself, im not THAT lazy i guess, just lazy enough to not scroll through the list of poisons) i realize poison is mostly useless, but it adds a nice touch.
sadly, im utter crap at making potions/ poisons, so i could not even make a invisibility one (i just ate the vamp dust....tasted NOTHING like count chocola, i was sad faced) --- Good luck.
Deathbell + River Betty is better. It is also Damage Health and Slow, but uses less ingredients, and gives a stronger Damage Health effect. Add in Abecean Longfin or Bleeding Crown for a Weakness to Poison effect as well.
And obviously Paralyze poisons are powerful. Imp Stool + Canis Root is one recipe. Adding in Mora Tapinella like the above poster suggests will also add Lingering Damage Health.
A tip is to always use River Betty when making a Damage Health poison. Its Damage Health effect is stronger than any other ingredient except Crimson Nirnroot (a pain to gather) and Jarrin Root (only a single sample exists).