Phenobarbitone (see also Phenobarbital) Luminal Positive for Barbiturates (BAR) Phenytoin Dilantin, Epanutin, Epitard Possible positive for Barbiturates (BAR). Urinary metabolite only. Ranitidine Pylorid, Zantac Potential Positive for Methamphetamine (M-AMP).

What will cause a false positive for barbiturates?

Ibuprofen, like Motrin or Advil, could lead to false positives for barbiturates, PCP, or THC. Aleve, or naproxen, may also lead to a false positive for barbiturates of THC.

Is Dilantin a barbiturate?

Phenytoin sodium is an antiepileptic drug. Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring.