Adverse Drug Reaction Classification System

Pharmaceutical Information
Drug Name Metronidazole
Drug ID BADD_D01449
Description Metronidazole is a commonly used antibiotic, belonging to the nitroimidazole class of antibiotics.[L3754] It is frequently used to treat gastrointestinal infections as well as trichomoniasis and giardiasis, and amebiasis which are parasitic infections.[A181036,A18039] Metronidazole has been used as an antibiotic for several decades[L7429], with added antiparasitic properties that set it apart from many other antibacterial drugs, allowing it to treat a wide variety of infections. It is available in capsule form, tablet form, and topical form, and suppository preparations for the treatment of various infections.
Indications and Usage Metronidazole is indicated for the treatment of confirmed trichomoniasis caused by Trichomonas vaginalis (except for in the first trimester of pregnancy) and the patient's sexual partners, bacterial vaginosis[L7432], certain types of amebiasis, and various anaerobic infections.[A181057] The above anaerobic infections may occur on the skin and skin structures, the abdomen, the heart, reproductive organs, central nervous system, and the respiratory system. Some may also be present in the bloodstream in cases of septicemia. Common infections treated by metronidazole are Bacteroides species infections, Clostridium infections, and Fusobacterium infections, as well as Peptococcus and Peptostreptococcus infections.[L3754] It is also used off-label in the treatment of Crohn's disease and rosacea, as a prophylactic agent after surgery[A181039], and in the treatment of Helicobacter pylori infection.[A181045] It has also been studied in the prevention of preterm births and to treat periodontal disease.[A1391,A181078]
Marketing Status approved
ATC Code A01AB17; D06BX01; G01AF01; J01XD01; P01AB01
DrugBank ID DB00916
KEGG ID D00409
MeSH ID D008795
PubChem ID 4173
TTD Drug ID D0A2ZX
NDC Product Code 80830-2465; 0904-7156; 23155-652; 50090-0211; 50090-4809; 50111-333; 51407-372; 62332-018; 66993-962; 67296-1366; 68071-2549; 0409-0152; 68180-684; 68682-455; 69292-208; 70518-0013; 70518-0539; 70518-2663; 70518-3042; 70771-1834; 71335-1775; 46708-428; 46708-429; 0187-5202; 50090-0212; 50090-0214; 50090-5691; 51407-376; 60687-550; 63629-1388; 63629-8731; 68788-7815; 70518-3265; 72578-008; 72578-129; 0713-0633; 0904-7126; 38779-0146; 62991-1685; 25021-131; 29300-227; 45802-139; 46708-435; 50090-5687; 51672-4164; 0264-5535; 55154-8190; 55700-909; 0299-3836; 0338-9541; 63187-035; 63629-7940; 64380-780; 64980-235; 66993-936; 68071-2806; 70518-1240; 70518-3110; 71335-1681; 54348-740; 60687-526; 62332-016; 63187-827; 66993-960; 68071-2809; 68071-5283; 68462-184; 70518-2305; 70518-2814; 70934-813; 71209-063; 71335-1609; 71335-1703; 71335-1838; 72578-007; 16714-557; 45865-717; 50090-5787; 51655-441; 55700-298; 61919-032; 62332-017; 67457-697; 68001-364; 68180-683; 72789-007; 72789-195; 15955-388; 16571-664; 0115-1474; 43063-738; 0168-0383; 50090-5688; 50268-534; 0245-0860; 53002-2478; 58118-0527; 0299-3820; 0338-1055; 64980-236; 65862-694; 67296-1283; 0404-9991; 68071-2251; 0409-7811; 68788-8230; 70518-0090; 70882-131; 0781-7077; 0781-7080; 51927-1449; 53747-007; 60592-427; 68981-034; 23155-651; 53002-2470; 0299-3838; 60760-539; 61919-499; 63629-1386; 63629-7916; 64380-779; 68788-7955; 70518-1536; 70518-3073; 71335-0358; 71335-1922; 0713-0575; 0713-0637; 49452-4726; 49964-0002; 51552-0038; 43063-719; 50090-5768; 50111-334; 50268-535; 51672-4116; 52584-811; 53002-7341; 63629-8680; 68083-373; 69043-005; 70518-0797; 70882-130; 71335-0858; 72789-011; 0642-7466; 73473-303; 0713-0574; 82982-039; 0395-8115; 15955-389; 21922-039; 47335-993; 50090-0213; 50090-5249; 51655-974; 54348-745; 60760-336; 67296-1747; 69043-004; 70518-0324; 70934-970; 71209-062; 72789-005; 16571-665; 29300-226; 46708-021; 53002-7340; 60760-664; 61919-363; 62332-630; 63187-511; 65862-695; 66993-961; 68001-365; 68071-2280; 68071-2288; 68071-2551; 68071-3039; 69292-207; 70518-0058; 70518-0088; 70518-1241; 70934-956; 0168-0275; 0168-0323; 50090-0201; 50090-2126; 51672-4215; 53002-2471; 0025-1942
UNII 140QMO216E
Synonyms Metronidazole | 2-Methyl-5-nitroimidazole-1-ethanol | 2 Methyl 5 nitroimidazole 1 ethanol | Satric | Trichazol | Trichopol | Trivazol | Metronidazole Phosphoester | Vagilen | Bayer 5360 | Metronidazole Phosphate | Danizol | Flagyl | Gineflavir | Metric | Metrodzhil | MetroGel | Metrogyl | Metronidazole Hydrochloride | Metronidazole Monohydrochloride | Clont
Chemical Information
Molecular Formula C6H9N3O3
CAS Registry Number 443-48-1
SMILES CC1=NC=C(N1CCO)[N+](=O)[O-]
Chemical Structure
ADRs Induced by Drug
*The priority for ADR severity classification is based on FAERS assessment, followed by the most severe level in CTCAE rating. If neither is available, it will be displayed as 'Not available'.
**The 'Not Available' level is hidden by default and can be restored by clicking on the legend twice.
ADR Term ADReCS ID ADR Frequency (FAERS) ADR Severity Grade (FAERS) ADR Severity Grade (CTCAE)
Tic17.02.05.024; 19.11.04.0010.000026%-
Tinnitus04.04.01.002; 17.04.07.0040.000341%
Tongue blistering07.14.02.0140.000053%-
Tongue coated07.14.02.0110.000026%-
Tongue discolouration07.14.02.0060.000097%-
Tongue disorder07.14.01.002---
Tonic convulsion17.12.03.0110.000026%-
Torsade de pointes02.03.04.0050.000026%-
Toxic encephalopathy12.03.01.027; 17.13.01.0040.003295%-
Toxic epidermal necrolysis10.01.01.006; 11.07.01.006; 12.03.01.015; 23.03.01.0080.000066%
Tremor17.01.06.0020.000444%
Trismus15.05.04.004; 17.01.03.0040.000026%
Type I hypersensitivity10.01.03.0060.000263%-
Upper respiratory tract infection11.01.13.009; 22.07.03.011--
Urinary tract infection11.01.14.004; 20.08.02.001--
Urine abnormality20.02.01.013---
Urticaria10.01.06.001; 23.04.02.0010.003219%
Uterine haemorrhage21.07.01.005; 24.07.03.0040.000089%
Vaginal discharge21.08.02.0020.000097%
Vaginal haemorrhage21.08.01.001; 24.07.03.005--
Vaginal infection11.01.10.002; 21.14.02.002--
Vaginal odour21.08.02.0080.000026%-
Vascular purpura01.01.04.007; 23.06.01.008; 24.07.06.0110.000066%-
Vasculitis10.02.02.006; 24.12.04.0270.000026%
Vasodilatation23.06.05.006; 24.03.02.003---
Vena cava thrombosis24.01.10.0010.000026%-
Ventricular fibrillation02.03.04.0080.000066%
Vertigo04.04.01.003; 17.02.12.0020.000549%
Vision blurred06.02.06.007; 17.17.01.0100.000470%
Visual acuity reduced06.02.10.012; 17.17.01.011--
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ADReCS-Target
Drug Name ADR Term Target
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