As far as I know Citalopram is a selective serotonin reuptake inhibitor (SSRI) not a barbiturate.
Barbiturates = Allobarbital (Asmac, Cibalgine, Dial, Somnocodal); Amobarbital/Amylobarbitone (Anytal); Aprobarbital (Aluratec, Amobarbital, Amylbarbitone, Amytal, Aprobarbital, Brevital, Busodium, Butabarbital, Butisol, Mebaral, Mephobarbital, Metharbital, Methohexital, Nembutal,Pentobarbital, Pentothal, Pentothal, Phenobarbitone, Quinalbarbitone, Secobarbital, Seconal, Sodium Pentothal, Talbutal, Thiamylal, Thiopental); Barbexaclone (Maliasin); Barbital/Barbitone (Barbital, Calmine, Neurinase, Peralga, Plexonal, Veramon, Veronal); Butabarbital (Butisol); Butalbital; Butobarbital (Soneryl); Cyclobarbital/Cyclobarbitol/Cyclobarbitone; Ethallobarbital; Heptabarbital; Hexobarbital; Metharbital (Gemonil); Methohexital (Brevital); Methylphenobarbital/Mephobarbital (Mebaral, Prominal); Pentobarbital (Nembutal); Phenobarbital/Phenobarbitone (Luminal); Proxibarbal; Reposal; Secobarbital (Seconal, Tuinal); [Sodium] Thiopental (Sodium Pentothal); Talbutal (Lotusate); Thiobarbital; Vinbarbital (Sonuctane); Vinylbital/Butylvinyl
(list list is to the best of my Google scholar abilities)
no it's an SSRI
No, morphine is not a barbiturate.
No, vitamin B12 is not a barbiturate
No, Maxalt is a triptan, not a barbiturate.
No, LSD is not a barbiturate.
Esgic plus is a barbiturate.
CITALOPRAM
No it is not barbiturate it is related to H2 Blockers (for peptic Ulcer problem)
If they are barbiturate based then they will.
how long can i use Citalopram for?
No, it is related to substituted pyrimidine derivative which has similar action to that of Barbiturate but doesn't belong to barbiturate, phenyton related to group of Hydantoins.
No. Citalopram is a generic name for Celexa.
The difference between benzodiazepine and a barbiturate is rather pronounced. A benzodiazepine refers to a minor tranquilizer, whereas a barbiturate refers to a neutral transmitter blocker.