Addiction

Drugs and Addiction (SRD)
Anytime a character takes a drug he must make a saving throw, noted in the drug's description, to resist becoming addicted. If a character makes the save, he is not addicted and the effects of the drug persist as normal. If he fails the save, he contracts the noted form of addiction (see below). Should a character take multiple doses of the same drug in a short period of time addiction becomes more difficult to resist. The DC of a drug's saving throw increases by +2 every time a character takes a another dose of that drug while still suffering from ability damage caused by a previous dose. Keep track of how high this DC rises, even for characters already addicted to a drug, as it determines the DC necessary to overcome the disease.

Addiction manifests in three different degrees of severity: minor, moderate, and severe. Each drug notes what type of addiction failing a save against it results in. Each addiction causes a persistent penalty to ability scores, lasting for as long as the character has the disease. In the case of moderate and severe addictions, the character also cannot naturally heal ability damage dealt by the drug that caused the addiction.

Each form of addiction encourages sufferers to continue making use of the drug they are addicted to. While a character is benefiting from the effects of the drug he is addicted to, he does not suffer the penalties of his addiction disease. While he still receives the benefits of the drug and takes ability damage as normal, the disease's effects are mitigated. As soon as the drug's benefits expire, the disease's effects return.

MINOR ADDICTION
Type disease, variable; Save variable
Onset 1 day; Frequency 1/day
Effect –2 penalty to Con; Cure 2 consecutive saves
MODERATE ADDICTION
Type disease, variable; Save variable
Onset 1 day; Frequency 1/day
Effect –2 penalty to Con and Str, target cannot naturally heal ability damage caused by the drug that caused this addiction; Cure 3 consecutive saves
SEVERE ADDICTION
Type disease, variable; Save variable
Onset 1 day; Frequency 1/day
Effect –2 penalty to Dex, Con, Str, and Wis; target cannot naturally heal ability damage caused by the drug that caused this addiction; Cure 3 consecutive saves
Curing Addiction
As addictions are diseases, they can be cured as such, through the use of spells like remove disease or by succeeding at Fortitude saves over time. Unlike with other diseases, an addicted character can only make a Fortitude save to overcome his addiction after a day of not taking the drug he is addicted to. The DC of this Fortitude save is equal to the highest addiction DC his drug use has reached (not necessarily the DC that addicted him if he has continued to make use of the drug while addicted). This DC decreases by –2 for everyday the character does not make use of the drug, to a minimum of the drug's base addiction DC. Depending on the severity of the character's addiction, it might take two or three consecutive successful Fortitude saves to overcome the disease. Should a character take a dose of the drug he's addicted to, he immediately relapses, causing the addiction DC to instantly return to its highest DC and negating any successful past saves.

Sample Drugs
Numerous types of drugs exist, both in the real world and fantasy worlds. Presented here are several samples with a variety of effects. All drugs have the following features.

Type: This notes how the drug is introduced into the system. These types equate to the types most common to poisons: contact, ingestion, inhalation, injury.

Addiction: This is the severity of the addiction disease the drug causes, followed by the base DC of the save a character must succeed at to resist an addiction and potentially overcome an addiction. This DC can increase through multiple uses of the drug.

Price: The common price of 1 dose of this drug.

Effect: The duration and effect of the drug.

Damage: The amount and type of ability damage caused.

AETHER
Type inhaled; Addiction moderate, Fortitude DC 16
Price 20 gp
Effect 1 hour; +1 caster level
Effect 1d4 hours; user must make a caster check to cast spells, DC 15 + spell level
Damage 1d2 Con damage
DWARVEN FIRE ALE
Type ingested; Addiction moderate, Fortitude DC 20
Price 50 gp
Effect 1d4 rounds; rage as per the spell
Effect 1 hour; cold resistance 5
Damage 1d2 Con damage
ELVEN ABSINTHE
Type ingested; Addiction moderate, Fortitude DC 16
Price 500 gp
Effects 1 hour; +1d4 Cha
Damage 1d4 Con damage
FLAYLEAF
Type inhaled or ingested; Addiction minor, Fortitude DC 12
Price 10 gp
Effects 1 hour; +2 alchemical bonus on saves against mind-affecting effects, fatigue
Damage 1 Wis damage
OPIUM
Type inhaled, ingested, or injury; Addiction major, Fortitude DC 20
Price 25 gp
Effects 1 hour; +1d8 temporary hit points, +2 alchemical bonus on Fortitude saves, fatigue
Damage 1d4 Con and 1d4 Wis damage
PESH
Type ingested or inhaled; Addiction moderate, Fortitude DC 20
Price 15 gp
Effects 1 hour; +1d2 alchemical bonus to Strength, –2 penalty on saves against illusions and mind-affecting effects
Effect after 1 hour; 1d2 hours of fatigue
Damage 1d2 Con and 1d2 Wis damage
SCOUR
Type ingested or inhaled; Addiction major, Fortitude DC 24
Price 45 gp
Effects 3 hours; +1d4 alchemical bonus to Dexterity, –1d4 penalty to Wisdom
Damage 1d6 Con damage
SHIVER
Type injury or ingested; Addiction major, Fortitude DC 18
Price 500 gp
Effects variable; 50% chance to sleep for 1d4 hours or gain immunity to fear for 1d4 minutes
Damage 1d2 Con damage
ZERK
Type injury; Addiction minor, Fortitude DC 18
Price 50 gp
Effects 1 hour; +1 alchemical bonus to initiative. If addicted, the user also gains a +1d4 alchemical bonus to Strength for as long as he is addicted
Damage 1d2 Con damage