Konpeito (3.5e Equipment)
From D&D Wiki
Konpeito: Highly addictive candy that increases the consumer's speed by 5 ft. for 1 day. However, if the consumer goes at least one full day without consuming another konpeito, their speed is reduced to 5 ft. until they either consume another konpeito or have a remove curse spell cast on them.
Weak Enchantment;CL 5; Craft Magic Foods; Cost 1 lb. of Sugar, 1 Scroll of Make Konpeito, optional Coloring; Weight: .1 lbs lb.; Market Price: 5 gp per bag (10 pieces)