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Barbiturates are very bad drugs and are drugs of addiction. They have very low margin of safety. The barbiturate, pentathal sodium, used by anaethetics has very short plasma half life. It will be cleared within few days. But the tablet phenobarbitone has very long plasma half life of about four days. So it will be positive for urine drug test even after 20 days of taking a single tablet.

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10y ago
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14y ago

To some extent, for weeks and months because they're fat soluble and get trapped in your fat cells.
And because they modify your metabolism, you have to wait for your systems to return to normal. They are very dangerous drugs.

how many weeks how many months? that depends on the drug taken, the dose, and the duration of ingestion. Six months is high, but not unknown.

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12y ago

depend on dose/ doses and type you take. Barbiturates dissolve into body fats so they can accumulate and then later re enter the blood. Also they are classified as ultrashort, short ,intermediate and long- acting. Short and intermediate acting (like secobarbital) are detectable by fluid testing for 1-10 days, long acting (like phenobarbital ) up to 3-5 weeks. You can order online Barbiturates home drug test kit for $5-6 ( also many multi panel tests include Barbiturates panel ) and check your self.

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11y ago

About 3-4 days but you wont be able to tell. The amount of time you can tell your high off of bars are about 2 days total, if you only take one bar pill though.

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11y ago

3 to 5 days from the last full day you took them.

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15y ago

how long do zanbars stay in your system?

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10y ago

just asking

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Q: How long do zanbars stay in your system?
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