Phenprobamate (Gamaquil, Isotonil, Actozine) is a centrally acting skeletal muscle relaxant, with additional sedative and anticonvulsant effects.^{[2][unreliable source?]} Overdose is similar to barbiturates. Its mechanism of action is probably similar to meprobamate. Phenprobamate has been used in humans as an anxiolytic, and is still sometimes used in general anesthesia and for treating muscle cramps and spasticity. Phenprobamate is still used in some European countries, but it has generally been replaced by newer drugs. Phenprobamate is metabolized by oxidative degradation of the carbamate group and ortho-hydroxylation of the benzene ring, and is eliminated in urine by the kidneys.^{[citation needed]}

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Phenprobamate

Clinical data
AHFS/Drugs.com	International Drug Names
ATC code	M03BA01 (WHO)
Legal status
Legal status	BR: Class C1 (Other controlled substances)[1]
Pharmacokinetic data
Elimination half-life	5–8 hours
Identifiers
IUPAC name 3-Phenylpropylcarbamate
CAS Number	673-31-4 N
PubChem CID	4770
ChemSpider	4606 Y
UNII	UJZ473TPS0
KEGG	D01824 Y
ChEMBL	ChEMBL1079576 Y
CompTox Dashboard (EPA)	DTXSID2046464
ECHA InfoCard	100.010.552
Chemical and physical data
Formula	C10H13NO2
Molar mass	179.219 g·mol−1
3D model (JSmol)	Interactive image
SMILES O=C(OCCCc1ccccc1)N
InChI InChI=1S/C10H13NO2/c11-10(12)13-8-4-7-9-5-2-1-3-6-9/h1-3,5-6H,4,7-8H2,(H2,11,12) Y Key:CAMYKONBWHRPDD-UHFFFAOYSA-N Y
NY (what is this?)  (verify)

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Doses range from 400 to 800 mg, up to 3 times a day.^[3]