Felix Felicis -
Fever Fudge -
Fire Protection Potion -
Flesh-Eating Slug Repellent -
fluxweed -
flobberworm parts -
Forgetfulness Potion -
frog parts
"felix" L. lucky + "felicis" L. lucky (same word, differently declined)
ingredients: unknown
Until the effects wear off, all the drinker's endeavours will tend to succeed (HBP9). Once consumed, the potion gives the drinker an exhilarating sense of confidence and a tremendous sense of opportunity (HBP22). However, if taken in excess the potion causes giddiness, recklessness, and dangerous overconfidence, and it is highly toxic in large quantities (HBP9).
Colour of molten gold; while exposed to air large drops will leap like goldfish above the surface without spilling (HBP9).
A "miniscule" glass bottle can contain enough Felix Felicis to last 12 hours (HBP9).
The potion is a banned substance in organized competitions such as sporting events, examinations, or elections (HBP9).
Desperately tricky to make and disastrous to get wrong (HBP9).
Harry consumed one mouthful of Felix Felicis on the night of Aragog's burial (HBP22).
Harry turned over the rest of his supply of Felix Felicis to Ron, Hermione, and Ginny on the night he and Dumbledore left Hogwarts to try to retrieve the locket Horcrux (HBP25).
c.f. MACKLED MALACLAW.
ingredients: includes murtlap essence (OP26)
See Fever Fudge entry for Weasleys' Wizard Wheezes.
ingredients: unknown
Repels Flesh-Eating Slugs.
Sold in Knockturn Alley (CS4).
ingredients: unknown
Protects the drinker from being burned by magical fire.
This name comes from (TCG) rather than from the original canon reference, but the potion referred to is the category of potion in (PS16) that Harry drank to pass through the black fire and Hermione drank to pass back through the purple fire. Since these potions are canon, we are including them here with the name suggested by (TCG).
flobberworm parts
The mucus exuded by a flobberworm is sometimes used to thicken potions (FB).
Isanthus brachiatus, a member of the mint family also known as "false pennyroyal" (pennyroyal being another member of the mint family). Fluxweed is native to the eastern United States and is a threatened or endangered species in several areas (PLANTS).
When picked at full moon, this plant is used in Polyjuice Potion (see).
"Flux" means constant change or flow, which is appropriate for a potion that changes a person's appearance.
Effect: uncertain, probably makes a person forget things
First-years were tested on this in final exams (PS16)
see Memory Potions
The actual use of frog parts in Potions is not known. It is noted only because some third years "plastered frog brains all over the ceiling of dungeon five" during October of 1992 [Y12]. (CS8)
