Adverse Drug Reaction Classification System

Pharmaceutical Information
Drug Name Tizanidine
Drug ID BADD_D02230
Description Tizanidine is a fast-acting drug used for the management of muscle spasm, which may result from the effects of multiple sclerosis, stroke, an acquired brain injury, or a spinal cord injury [T574]. It may also be caused by musculoskeletal injury [A177583]. Regardless of the cause, muscle spasticity can be an extremely painful and debilitating condition. Initially approved by the FDA in 1996, tizanidine is an Alpha-2 adrenergic receptor agonist reducing spasticity by the presynaptic inhibition of excitatory neurotransmitters that cause firing of neurons promoting muscle spasm [FDA label].
Indications and Usage Tizanidine is indicated for the relief of muscle spasticity, which can interfere with daily activities. The general recommendation is to reserve tizanidine use for periods of time when there is a particular need for relief, as it has a short duration of action [FDA label, F4471].
Marketing Status approved; investigational
ATC Code M03BX02
DrugBank ID DB00697
KEGG ID D08611
MeSH ID C023754
PubChem ID 5487
TTD Drug ID D01MDT
NDC Product Code 72789-325; 35356-662; 50090-0840; 51655-740; 53002-1418; 57664-502; 60760-694; 70771-1335; 72578-096; 61919-221; 63187-009; 63187-910; 63629-8533; 68084-645; 29300-168; 29300-169; 42291-809; 55111-180; 60760-263; 63629-2371; 71610-228; 60760-505; 63187-493; 63187-673; 68084-775; 70518-3658; 71610-451; 0615-8468; 72578-097; 0904-6418; 43063-868; 60505-0251; 60760-782; 67877-614; 68071-5268; 70518-2210; 70771-1336; 71205-311; 71335-1016; 71335-1799; 0615-8360; 76420-228; 55111-179; 60505-0252; 60760-719; 63629-3209; 67877-613; 68788-7782; 70518-3181; 71610-162; 71610-455; 42291-808; 50090-0841; 63187-145; 63629-1673; 67296-1599; 70518-0133; 70518-1439; 70518-3112; 71610-167; 0615-8274; 0615-8469; 72789-326; 16714-172; 50090-0811; 50090-5767; 51655-603; 53002-1437; 68071-3440; 70518-0573; 72789-327; 76420-229; 43063-455; 55154-7287; 57664-503; 63629-2370; 68788-7781; 68788-7991; 16714-171; 71335-0914; 43353-167; 50268-759; 50268-760
UNII 6AI06C00GW
Synonyms tizanidine | 5-chloro-4-(2-imidazolin-2-yl-amino)-2,1,3-benzothiadiazole | Zanaflex | tizanidine hydrochloride | tizanidine monohydrochloride | DS 103-282 | Sirdalud
Chemical Information
Molecular Formula C9H8ClN5S
CAS Registry Number 51322-75-9
SMILES C1CN=C(N1)NC2=C(C=CC3=NSN=C32)Cl
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)
Gastrointestinal pain07.01.05.005--
Glaucoma06.03.01.002--
Glycosuria20.02.01.005--
Haematemesis24.07.02.011; 07.12.02.002--Not Available
Haematuria21.10.01.018; 24.07.01.047; 20.02.01.006--
Haemoglobin13.01.05.018--Not Available
Hallucination19.10.04.0030.000345%
Hallucination, auditory19.10.04.0040.000052%Not Available
Hallucination, visual19.10.04.0070.000078%Not Available
Hemiplegia17.01.04.002--Not Available
Hepatic cirrhosis09.01.04.001--Not Available
Hepatic failure09.01.03.002--
Hepatic fibrosis24.08.06.002; 09.01.04.002--Not Available
Hepatic function abnormal09.01.02.001--Not Available
Hepatic necrosis09.01.07.002--
Hepatitis09.01.07.004--Not Available
Hepatitis fulminant11.07.01.003; 09.01.07.007--Not Available
Hepatocellular injury09.01.07.008--Not Available
Hepatotoxicity12.03.01.008; 09.01.07.009--Not Available
Herpes simplex23.11.05.004; 11.05.02.001--Not Available
Herpes zoster23.11.05.005; 17.09.03.026; 11.05.02.003--
Hypercholesterolaemia14.08.01.001--Not Available
Hyperglycaemia14.06.02.002; 05.06.02.0020.000052%
Hyperhidrosis23.02.03.004; 08.01.03.0280.000167%
Hypersensitivity10.01.03.003--
Hypertension24.08.02.0010.000402%
Hypertonia15.05.04.007; 17.05.02.001--Not Available
Hypoaesthesia23.03.03.081; 17.02.06.0230.000052%Not Available
Hypokalaemia14.05.03.0020.000052%
Hyponatraemia14.05.04.002--
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ADReCS-Target
Drug Name ADR Term Target
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