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Barbituates Crossreactivity Table


 Compound  Conc. (ug.mL)  Effect
 Secobarbital (cutoff)   0.2   Positive
 Alphenal   0.25   Positive
 Amobarbital   0.3   Positive
 Aprobarbital   0.2   Positive
 Barbital   1.5   Positive
 Butabarbital   0.25   Positive
 Butalbital   0.4   Positive
 Butethal   0.3   Positive
 Diallylbarbital   0.6   Positive
 Pentobarbital   0.5   Positive
 Phenobarbital   0.8   Positive
 Talbutal   0.08   Positive
 Thiopental   0.8   Positive
 Acetaminophen   1000   Negative
 Acetylsalicylic Acid   1000   Negative
 Albuterol   1000   Negative
 d-Amphetamine   1000   Negative 
 Caffeine   100   Negative
 Codeine   1000   Negative
 Diphenhydramine   500   Negative
 Glutethimide   80   Negative
 5-OH-Phenyl-5- phenylhydantoin (HPPH)   500   Negative
 Meperidine   1000   Negative
 Methadone   1000   Negative
 Methsuximide   100   Negative
 Morphine   1000   Negative
 Normethsuximide   100   Negative
 Oxazepam   500   Negative
 Phencyclidine   1000   Negative
 Phenytoin (DPH)   500   Negative
 Propoxyphene   1000   Negative
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a   Data shown was collected using SYNCHRON CX Systems. Equivalency between SYNCHRON LX Systems has been established by correlation analysis to SYNCHRON CX Systems.