Chemist (Fallout: New Vegas)

Chemist is a perk

Effects
This perk doubles the active time for chems and other items granting a temporary positive effect. In order to select the perk, the Courier needs to have a Medicine skill of 60 or higher, and at least level 14.

The following items are affected by this perk:
 * All consumables with timed effects.
 * Implant GRX
 * Skill magazines
 * Stealth Boy

Bugs
Descriptions of items which include the item's duration are not updated to reflect the extended duration when the Chemist perk is taken. Examples of such items are RadAway, stimpaks and purified water.