Apothecary

Positive Effects: 

Iron Skin – Provides +4 Armor points

Diamond Skin – Provides +4 Armor toughness

Archery – Increases arrow damage by +3

Wrath – Increases all damage dealt by +10%

Flight – Grants creative flight

Reach – Increases reach by +1

Repairing – Repairs items in inventory at random intervals

Magic Power – Increases magic damage by +10%

Mana Regeneration – Increases mana regeneration by +25% (irons spellbooks)

Thorns – Reflect 20% of damage dealt back to attackers

Purification – Grants immunity to all harmful effects

Extension – Increases the duration of all active effects

Negative Effects:

Broken Armor – Reduces -4 Armor points

Ruptured Armor – Reduces -4 Armor toughness

Misfire – Decreases arrow damage by -4

Feeble – Decreases damage dealt by -10%

Vunerable – Increases damage taken by -20%

Magic Drain – Decreases magic damage by -10%

Magic Exhaustion – Decreases mana regeneration by -25% (irons spellbooks)

Confusion – Inverts controls

Corruption – Grants immunity to all beneficial effects

Burning – Sets you ablaze with fire doing more damage per level

Shocked – Decreases movement speed by -50%

Reversion – Decreases the duration of all active effects

Vanilla Potions:

Health Boost

Wither

Luck (recipe)

Resistance

Damage Resistance – Increases damage resistance, replaces vanilla resistance mechanics with this attribute

Damage Multiplier – Increases ALL damage dealt, used in wrath and frail effects

Jump Height – Increase jump height based in blocks, replaces vanilla jump boost with this attribute

Dig Speed – Increase the players dig speed. replaces vanilla haste with this attribute

Magic Damage – Increases magic damage, used in magic power and magic drain effects. If irons spellbooks is installed this will also increase spell damage

Magic Shielding – Increases magic resistance, used in the magic shield effect, if irons spellbooks is installed this will also increase spell resistance

Projectile Damage – Increases  projectile damage, used in archery and misfire effects

All of these attributes also apply to any living entity (besides dig speed)
For more information about how these attributes work refer to this

Vanilla Events:

Broken armor effect can be inflicted by explosions when wearing armor

Ruptured armor effect can be inflicted by explosions when wearing armor and the damage of the explosion reaches a certain amount, also applied by piglin brutes

Direct lightning strikes can inflict the shocked effect

Any mob attack can inflict the feeble effect very rarely

Blazes can occasionally inflict the burning effect for a short time

Illusioners can inflict the confusion effect rarely

Allows witches to throw many new potions added by this mod when attacking a player

Compat Events:

Necromancers can inflict mana exaustion and magic drain (ironsspellbooks)

Blood can inflict vulnerable (biomesoplenty)

Acid can inflict corrosion (alexscaves)