Naftifine Hydrochloride is the hydrochloride salt form of naftifine, an allylamine derivate with synthetic broad-spectrum antifungal activity. Although the exact mechanism through which naftifine hydrochloride exerts its effect is unknown, it appears to selectively inhibit the enzyme squalene 2, 3-epoxidase, thereby inhibiting the biosynthesis of sterol. This results in a decreased amount of sterols, especially ergosterol which is the primary fungal membrane sterol, and a corresponding accumulation of squalene in fungal cells. Naftifine hydrochloride (Naftifine HCl) can be fungicidal as well as fungistatic to yeasts depending on the concentration and the organisms involved.

MRT-83 is a potent Smo antagonist.

GANT 61 (GANT61) is an inhibitor for Gli1 and Gli2.

Ellagic acid (Gallogen), a thickened tetracyclic natural product, is a potent CK2 inhibitor (IC50=40 nM; Ki=20 nM) with ATP-competitive properties. Ellagic acid is an antioxidant and also possesses antiproliferative activity.

Tolnaftate (NP-27) is a synthetic antifungal agent used to treat skin infections caused by fungi.

Triparanol (NSC-65345) interferes with posttranslational modification of Hedgehog signaling molecules as well as the sterol sensing domain of its receptor PTCH1, leading to down-regulation of Hedgehog signaling. Triparanol suppresses human tumor growth and is an antilipemic agent with high ophthalmic toxicity.

ALLO-2 is a Inhibitor of Drug-Resistant Smo Mutant.It inhibits Smo agonist Hh-Ag1.5-induced luciferase expression in TM3-Gli-Luc cells with IC50 of 6 nM.

LEQ506 is a Smo inhibitor with IC50s of 2 nM and 4 nM for hSmo and mSmo, respectively.