House Rule: Sharing Potions

 

Something my players have tried (off and on again) is splitting potions—particularly if many in the party are in need of healing. In furtherance of my BXDMG, I thought I'd go ahead and set out how I intend to handle this from now on...

[The parenthetical note "(see below)" in the last line of the first section is a placeholder for the actual layout of the BXDMG; this section will be followed by the Potion Miscibility rules from RS1 Fang, Faith, and Legerdemain.]

Sharing Potions

In general, it takes the full dose of a potion for its properties to take take full effect. This is especially true when other factors are taken into consideration, like age of the potion and settling of its ingredients. The size of the dose is never in question (it is the full phial, with the exception of ointments and salves which have a prescribed number of applications), only the duration of that dose is to be determined (1d6+1 turns, except where indicated by the potion). Two different characters each imbibing half of a potion might have completely different consequences, except for poison potions, which are always deadly, regardless of how little is imbibed.

When PCs choose to share a potion, roll 1d6 on the following table for each PC to determine the effects of the partial dose on that PC.

1. Potion has full effect for half duration (1d3 turns + 5 minutes).
2. Potion has half effect/strength for full duration (1d6+1 turns).
3. Potion has half effect for half duration.
4. Potion has no effect; if other portion of dose is consumed within 1d6 rounds of the first portion, there is a 50% chance the potion will have full effect for full duration; otherwise, it still has no effect).
5. Imbiber must save vs. poison or be nauseated (–1 on all "to hit" rolls and saving throws for 1d6+1 turns) unless the potion is neutralized (neutralize poison); the potion has otherwise no effect.
6. Imbiber must save vs. poison or die at the end of 1d6+1 turns, unless the potion is neutralized (neutralize poison); ; the potion has otherwise no effect.

Partial doses are subject to the effects of Potion Miscibility (see below), regardless of the result on the table above, for the duration indicated for each result.

Partial Applications of Magical Ointments/Salves/Balms

If a PC attempts to use less than a full prescribed portion of an ointment, salve, or balm, it will have no effect; however, the partial application will "start the clock" on the duration of the ointment, salve, or balm. Should the remainder of the prescribed amount be applied before that duration has expired, it will work as intended, but only for the remainder of the original partial application's duration. 

Coming soon—recharging wands, rods, and other items.