Drug Information

General Information
Drug ID
DR00278
Drug Name
Famotidine
Synonyms
(1-Amino-3-(((2-((diaminomethylene)amino)-4-thiazolyl)methyl)thio)propylidene)sulfamide; (1Z)-3-[({2-[(diaminomethylidene)amino]-1,3-thiazol-4-yl}methyl)sulfanyl]-N'-sulfamoylpropanimidamide; (1Z)-N'-(aminosulfonyl)-3-[({2-[(diaminomethylidene)amino]-1,3-thiazol-4-yl}methyl)thio]propanimidamide; 3-(2-Guanidinothiazol-4-ylmethylthio)-N1-sulfamoylpropionamide; 3-[({2-[(diaminomethylidene)amino]-1,3-thiazol-4-yl}methyl)sulfanyl]-N-sulfamoylpropanimidamide; 3-[[2-(diaminomethylideneamino)-1,3-thiazol-4-yl]methylsulfanyl]-N'-sulfamoylpro; 3-[[2-(diaminomethylideneamino)-1,3-thiazol-4-yl]methylsulfanyl]-N'-sulfamoylpropanimidamide; Amfamox; Antodine; Apo-Famotidine; Apogastine; Bestidine; Blocacid; Brolin; Cepal; Confobos; Cronol; Cuantin; Dibrit 40; Digervin; Dinul; Dipsin; Dispromil; Dispronil; Duovel; Durater; Evatin; F 6889; F0530; FAMOTIDINE PRESERVATIVE FREE; FAMOTIDINE PRESERVATIVE FREE IN PLASTIC CONTAINER; Fadin; Fadine; Fadyn; Fagastine; Famo; Famocid; Famodar; Famodil; Famodin; Famodine; Famogard; Famonit; Famopsin; Famos; Famosan; Famotal; Famotep; Famotidina [Spanish]; Famotidine [USAN:BAN:INN:JAN]; Famotidinum [Latin]; Famotin; Famovane; Famowal; Famox; Famoxal; Famtac; Famulcer; Fanobel; Fanosin; Fanox; Farmotex; Ferotine; Fibonel; Fluxid; Fudone; Ganor; Gaster; Gastridan; Gastridin; Gastrion; Gastro; Gastrodomina; Gastrofam; Gastropen; Gastrosidin; HS-0054; Hacip; Huberdina; Ingastri; Invigan; L 643341; Lecedil; Logos; MK 208; MK-208; Mensoma; Midefam; Mosul; Motiax; Muclox; Mylanta AR; N'-(Aminosulfonyl)-3-([2-(diaminomethyleneamino)-4-thiazolyl]methylthio)propanamidine; Neocidine; Nevofam; Notidin; Novo-Famotidine; Nu-Famotidine; Nulceran; Nulcerin; PEPCID; PEPCID COMPLETE; PEPCID PRESERVATIVE FREE; PEPCID PRESERVATIVE FREE IN PLASTIC CONTAINER; Panalba; Pepcid (TN); Pepcid AC; Pepcid AC Gelcaps; PepcidRPD; Pepcidac; Pepcidin; Pepcidin Rapitab; Pepcidina; Pepcidine; Pepcidine (TN); Pepdif; Pepdine; Pepdul; Pepfamin; Peptan; Peptidin; Peptifam; Pepzan; Propanimidamide, 3-[[[2-[aminoiminomethyl)amino]-4-thiazoyl]methyl]thio]-N-(aminosulfonyl); Purifam; Quamatel; Quamtel; Renapepsa; Restadin; Rogasti; Rubacina; Sedanium-R; Sigafam; Supertidine; Tairal; Tamin; Tipodex; Topcid; Ulcatif; Ulceprax; Ulcofam; Ulfagel; Ulfam; Ulfamid; Ulfinol; Ulgarine; Vagostal; Weimok; Whitidin; YM 11170; YM-11170; YM-1170; Yamarin
Drug Type
Small molecular drug
Indication Peptic ulcer [ICD11: DA61] Approved [1]
Therapeutic Class
Antiulcer Agents
Structure
3D MOL 2D MOL
Formula
C8H15N7O2S3
Canonical SMILES
C1=C(N=C(S1)N=C(N)N)CSCCC(=NS(=O)(=O)N)N
InChI
InChI=1S/C8H15N7O2S3/c9-6(15-20(12,16)17)1-2-18-3-5-4-19-8(13-5)14-7(10)11/h4H,1-3H2,(H2,9,15)(H2,12,16,17)(H4,10,11,13,14)
InChIKey
XUFQPHANEAPEMJ-UHFFFAOYSA-N
CAS Number
CAS 76824-35-6
Pharmaceutical Properties Molecular Weight 337.5 Topological Polar Surface Area 238
Heavy Atom Count 20 Rotatable Bond Count 7
Hydrogen Bond Donor Count 4 Hydrogen Bond Acceptor Count 8
XLogP
-0.6
PubChem CID
5702160
PubChem SID
10321312 , 11111194 , 11111195 , 11736775 , 12013748 , 14777800 , 14900130 , 14900131 , 17405060 , 219459 , 24278442 , 26719681 , 26753575 , 46386903 , 47350438 , 47425376 , 47721689 , 47957418 , 48108291 , 48244468 , 48407560 , 48415998 , 49681730 , 49698346 , 49835099 , 49846705 , 50022089 , 50100994 , 50100995 , 50106279 , 50106280 , 53777603 , 57364911 , 76715592 , 77320398 , 7847384 , 7979217 , 81093272 , 85211955 , 85220228 , 85231052 , 855518 , 87558227 , 90340682 , 90501992 , 91704175 , 92125054 , 92303791 , 92308237 , 92308848
ChEBI ID
ChEBI:4975
TTD Drug ID
D0K0OZ
DT(s) Transporting This Drug OAT1 Transporter Info Organic anion transporter 1 Substrate [2]
OAT3 Transporter Info Organic anion transporter 3 Substrate [3]
OCT-2 Transporter Info Organic cation transporter 2 Substrate [3]
Drug-Transporter Activity Data
Drug-Transporter Activity Data OAT3 Transporter Info Km = 124 microM Human embryonic kidney cells (HEK293)-OAT3 [4]
OCT-2 Transporter Info Km = 56.1 microM Human embryonic kidney cells (HEK293)-OCT2 [3]
References
1 Famotidine was approved by FDA. The official website of the U.S. Food and Drug Administration. (2019)
2 Different transport properties between famotidine and cimetidine by human renal organic ion transporters (SLC22A). Eur J Pharmacol. 2004 Oct 25;503(1-3):25-30.
3 A species difference in the transport activities of H2 receptor antagonists by rat and human renal organic anion and cation transporters. J Pharmacol Exp Ther. 2005 Oct;315(1):337-45.
4 Is the monkey an appropriate animal model to examine drug-drug interactions involving renal clearance? Effect of probenecid on the renal elimination of H2 receptor antagonists. J Pharmacol Exp Ther. 2006 Mar;316(3):1187-94.

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