Adverse Drug Reaction Classification System

Pharmaceutical Information
Drug Name Methotrexate
Drug ID BADD_D01418
Description Methotrexate is a folate derivative that inhibits several enzymes responsible for nucleotide synthesis.[A180322] This inhibition leads to suppression of inflammation as well as prevention of cell division.[A180322] Because of these effects, methotrexate is often used to treat inflammation caused by arthritis or to control cell division in neoplastic diseases such as breast cancer and non-Hodgkin's lymphoma.[A180322,L7144,L7147,L7150,L7180] Due to the toxic effects of methotrexate, it is indicated for treatment of some forms of arthritis and severe psoriasis only if first line treatment has failed or patients are intolerant of those treatments.[L7180] Methotrexate was granted FDA approval on 7 December 1953.[L7198]
Indications and Usage Methotrexate oral solution is indicated for pediatric acute lymphoblastic leukemia and pediatric polyarticular juvenile idiopathic arthritis.[L7144] Methotrexate injections for subcutaneous use are indicated for severe active rheumatoid arthritis, polyarticular juvenile idiopathic arthritis and severe, recalcitrant, disabling psoriasis.[L7147,L7150,L10457] Other formulations are indicated to treat gestational choriocarcinoma, chorioadenoma destruens, hydatiform mole, breast cancer, epidermoid cancer of the head and neck, advanced mycosis fungoides, lung cancer, and advanced non-Hodgkin's lymphoma.[L7180] It is also used in the maintenance of acute lymphocytic leukemia.[L7180] Methotrexate is also given before treatment with leucovorin to prolong relapse-free survival following surgical removal of a tumour in non-metastatic osteosarcoma.[L7180]
Marketing Status approved
ATC Code L01BA01; L04AX03
DrugBank ID DB00563
KEGG ID D00142
MeSH ID D008727
PubChem ID 126941
TTD Drug ID D0SV8E
NDC Product Code 49452-4601; 51927-1565; 0143-9516; 51285-369; 59137-510; 61703-408; 66220-807; 66220-822; 69238-1423; 12780-0491; 46014-1023; 51407-121; 54436-025; 61703-350; 66220-810; 71335-1772; 46014-1005; 16729-277; 0143-9518; 0143-9519; 50268-527; 51079-670; 70771-1058; 70518-1398; 0555-0572; 0143-9367; 66220-815; 70518-3263; 0703-3675; 58623-0040; 0143-9517; 0143-9830; 54436-020; 59137-505; 59137-535; 59137-540; 0378-0014; 66220-825; 42291-505; 47781-482; 52652-2001; 54436-012; 54436-015; 54436-022; 59137-515; 59137-550; 66220-812; 66220-820; 71335-1118; 50090-5457; 51285-368; 54436-010; 59137-520; 59651-182; 68382-775; 0703-3671; 16729-486; 51285-366; 51285-367; 59137-525; 59137-530; 61703-124; 46014-1133; 63660-0006; 66220-817; 70518-3672; 0703-3678; 0904-7141; 54436-017
UNII YL5FZ2Y5U1
Synonyms Methotrexate | Amethopterin | Methotrexate, (D)-Isomer | Methotrexate, (DL)-Isomer | Mexate | Methotrexate Sodium | Sodium, Methotrexate | Methotrexate, Sodium Salt | Methotrexate, Disodium Salt | Methotrexate Hydrate | Hydrate, Methotrexate | Methotrexate, Dicesium Salt | Dicesium Salt Methotrexate
Chemical Information
Molecular Formula C20H22N8O5
CAS Registry Number 59-05-2
SMILES CN(CC1=CN=C2C(=N1)C(=NC(=N2)N)N)C3=CC=C(C=C3)C(=O)NC(CCC(=O)O)C(=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)
Musculoskeletal stiffness15.03.05.0270.033294%Not Available
Protein urine present13.13.02.006--Not Available
Musculoskeletal discomfort15.03.04.0010.002297%Not Available
Febrile bone marrow aplasia01.03.03.007; 08.05.02.0050.000171%Not Available
Skin swelling23.03.03.039--Not Available
Injection site swelling12.07.03.018; 08.02.03.017--Not Available
Secretion discharge08.01.03.019--Not Available
Infusion site pain12.07.05.002; 08.02.05.014--Not Available
Type IV hypersensitivity reaction10.01.03.022--Not Available
Thermal burn23.03.11.042; 12.05.04.001--
Dacryostenosis acquired06.06.04.003--Not Available
Depressive symptom19.15.02.003--Not Available
Nodule08.03.05.0020.011530%Not Available
Injection site discomfort12.07.03.019; 08.02.03.0180.000443%Not Available
Skin burning sensation23.03.03.021; 17.02.06.009--Not Available
Haemorrhoidal haemorrhage24.10.02.001; 07.15.03.002--
Mucosal discolouration08.01.06.008--Not Available
Cerebral disorder17.02.10.017--Not Available
Bone cancer metastatic16.29.02.001; 15.09.03.004--Not Available
Foetal death18.01.02.003; 08.04.01.011--
Haemorrhage24.07.01.002--Not Available
Varices oesophageal24.10.02.004; 09.01.06.009; 07.15.05.0010.000171%Not Available
Fluid intake reduced14.05.10.001--Not Available
Pulmonary mass22.02.07.0040.004855%Not Available
Distal intestinal obstruction syndrome07.13.01.006--Not Available
Cutaneous lupus erythematosus10.04.03.007; 23.03.02.008; 15.06.02.0070.000171%Not Available
Gastrointestinal ulcer haemorrhage24.07.02.023; 07.04.04.006--Not Available
Palpable purpura24.12.04.018; 23.06.02.006; 10.02.02.019--Not Available
Pharyngeal erythema22.04.05.0100.000114%Not Available
Rectal tenesmus15.05.03.011; 07.03.03.001--Not Available
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ADReCS-Target
Drug Name ADR Term Target
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