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There is a varied range of items in Final Fantasy XII, and due to the Licence Board system, you can occasionally change the effects of items for the better. Also, there is a certain accessory, the Nihopalaoa, that even reverses the effects of these items. This might sound like a useless item if all you're going to do is kill your party with curative items, but it can pose as a strategic tool - when used wisely. Either way, here's a list of every single item you can use in Final Fantasy XII. You can have up to 99 in your inventory and can use it only once.

Item	Buy	Sell	Obtained	Effect	Type
Potion	70	35		Restore a small amount of HP to one ally.	Potion
Hi-Potion	210	105		Restore a HP to one ally.	Potion
X-Potion	630	315		Restore a large amount of HP to one ally.	Potion
Ether	222	111		Restore a small amount of MP to one ally.	Ether
Hi-Ether		333		Restore MP to one ally.	Ether
Elixir		777		Fully restore one ally's HP and MP.	Potion/Ether
Megalixir		7777		Fully restore all allies' HP and MP.	Potion/Ether
Phoenix Down	250	125		Revive one KO'd ally.	Status cure
Eye Drops	50	25		Remove Blind from one ally.	Status cure
Echo Herbs	50	25		Remove Silence from one ally.	Status cure
Antidote	50	25		Remove Poison from one ally.	Status cure
Gold Needle	100	50		Remove Stone/Petrify from one ally.	Status cure
Handkerchief	50	25		Remove Oil from one ally.	Status cure
Smelling Salts	50	25		Remove Confuse from one ally.	Status cure
Chronos Tear	50	25		Remove Stop from one ally.	Status cure
Vaccine	200	100		Remove Disease from one ally.	Status cure
Remedy	400	200		Remove Blind, Poison, Silence, and Slow from one ally.	Status cure
Bacchus' Wine	120	60		Cause one ally to mindlessly attack with weapon in hand.	Status
Knot of Rust	6	3		Deal damage to one foe.	Non-Elemental
Red Fang	-	10		Deal fire damage to all foes in range.	Elemental
White Fang	-	10		Deal lightning damage to all foes in range.	Elemental
Blue Fang	-	10		Deal ice damage to all foes in range.	Elemental
Water Mote	-	25		A mote containing the power of Water.	Mote
Dark Mote	-	10		A mote containing the power of Dark.	Mote
Holy Mote	-	50		A mote containing the power of Holy.	Mote
Aero Mote	-	35		A mote containing the power of Aero.	Mote
Warp Mote	100	50		A mote containing the power of Warp.	Mote
Scathe Mote	-	250		A mote containing the power of Scathe.	Mote
Balance Mote	-	30		A mote containing the power of Balance.	Mote
Float Mote	-	150		A mote containing the power of Float.	Mote
Reflectga Mote	-	150		A mote containing the power of Reflectage.	Mote
Hastega Mote	-	150		A mote containing the power of Hastega.	Mote
Vanishga Mote	-	250		A mote containing the power of Vanishga.	Mote
Dark Matter	2	1		Deal damage to all foes in range.	Non-Elemental
Eksir Berries	-	5		A curious item detested by the avion known as the garuda.	Other