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Doctor insights on: How Long Till Lorazepam Starts To Work

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How long will a half a milligram of lorazepam take to work?

Not long: Lorazepam is short-acting and fast-acting - usually less than a half hour. If your anxiety is severe, what may seem like a drug that's not working is a dose that's too low. Lorazepam should only be used short term. There are better drugs than benzodiazepines for anxiety that's not a temporary problem. ...Read more

Dr. James Hall
572 Doctors shared insights

Lorazepam (Definition)

A medication of some versatility, a benzodiazepam of brief duration, that can be employed to stop ongoing seizure activity, can be used to control anxiety, assist as a sleep aide, and employed by a ...Read more


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Hi. I have a work presentation to make in 3 days & m 2 anxious. I have lorazepam in. 05  mg. How much to take before & how long before?  Thank u. 

Try before!: Make sure you try the medicine before. Lorazepam is sedating and you will want to be focused and not groggy. You may want to ask for a beta blocker which is also good, but does not make you groggy. Try them before the presentation. If you HAVE to take the lorazepam since it is only three days away, then only 0.25 mg please. ...Read more

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Is lorazepam most similar to xanax (alprazolam)? I know duration is longer but is it the closest one in this class of drugs? Klonopin doesn't work

Is lorazepam most similar to xanax (alprazolam)? I know duration is longer but is it the closest one in this class of drugs? Klonopin doesn't work

Xanax (alprazolam): Lorazepam is similar to Xanax (alprazolam) in that it has a short half life which means it seems to work faster but doesn't last as long, This makes these more addictive. Klonopin and Tranxene have a longer half life which takes longer to work but lasts much longer and is still addictive but less so. ...Read more

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How long can one stay on clonazepam 3mg ive been on for 3 years snd it works great for my GAD ive tried numerous antidepressants xanex ativan (lorazepam) nothing!

How long can one stay on clonazepam 3mg ive been on for 3 years snd it works great for my GAD ive tried numerous antidepressants xanex ativan (lorazepam) nothing!

Here's A Thought: How about working on fixing or curing or solving the problem? Three years of just numbing up or sedating the anxiety is not treating the cause of the problem. It is time to learn how to work on fixing and understanding and curing the problem. It is not life to go through your adulthood sedated every day. ...Read more

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How long till ativan (lorazepam) leaves the body for 2.5 weeks I've been taking anywhere from 1.5 mg to 1 and have not taken any since Wednesday?

How long till ativan (lorazepam) leaves the body for 2.5 weeks I've been taking anywhere from 1.5 mg to 1 and have not taken any since Wednesday?

Half-life: To be conservative always use the top end of half-life ranges. Ativan's is 20hrs to have only half your last dose in your system. So, after approx a day you'd have less than 1 mg in you. After 2 days, . 5 -- 3 days, . 25 -- 4 days, . 125. It should be totally gone by a week. It may be less - but I'm being conservative. Best! ...Read more

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How long will lorazepam stay in your system?

How long will lorazepam stay in your system?

70 hours: Half life of Lorazepam is 14 hours. Five half-lives to clear. Figure about 70 hours to clear from your system. ...Read more

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How long does lorazepam stay in your system?

How long does lorazepam stay in your system?

72 hours: The half life is 12 hours. It should be fully out of your system in 72 hours. ...Read more

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Could you tell me what are long term lorazepam effects?

Dependence.: If you are taking the medication daily, you can start becoming dependent on it. This medication is addictive so be careful with it and discuss your options with your provider. ...Read more

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How long do the effects of 1mg of lorazepam persist for?

It's variable.: The sedative, calming, and mental slowing can be expected to last 5-6 hours, although the medication can still be detected in your blood and urine for about twice that time. Persons can, and do, lose their driver licenses if they drive under the influence of benzodiazepines, and doctors who prescribe Clonazepam (lasts 8-9 hours), etc., are remiss if they don't warn patients not to drive. ...Read more

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How long with it take the feel the effects of a 1 mg lorazepam?

Intermediate-Fast: This is a common starting dose. Intended for short term use in immediate stressful situation. Onset w/in half hr. Peak by 1-1/2 hr. Clears system by end of 2nd day. Withdrawal can be rough if taken in high doses for extended time. Discuss all frankly w/ prescribing doctor. ...Read more

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How long would it take to get 2mgs of lorazepam out of my system?

About 40 hours: The elimination half-life of lorazepam is about 12 hours on average; so, assuming such averages, it takes 3.3 half-lives to eliminate 90% from a given body; thus about 39.6 hours. However, the effects would be gone earlier than that since the levels in the body would not be sufficient to cause an effect. ...Read more

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How long would it take for 10 pills of Lorazepam 0.5mg to take effect?

Ativan (lorazepam) onset: Ativan, or lorazepam, typically has onset of action between 20 - 40 minutes. This medication is a benzodiazepine, which may be used to treat acute anxiety. The medication is tolerance inducing & can therefore be habit forming. It is also a respiratory depressant. Be certain to take the med only exactly as prescribed by your doc. ...Read more

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What are the common uses of lorazepam, and how often can it be used? Long term?

What are the common uses of lorazepam, and how often can it be used? Long term?

Try to avoid: Lorazepam is long acting antianxiety, but we have better drugs for that--it is used to stop seizures but used IV in the hospital---i am against long term oral intake of Lorazepam for any reason, other than a short course-
Lorazepam should not be used for sleep. ...Read more

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How long does lorazepam stay in your system after taking them for several months?

Long time: It is really depend how much you took every time and for how long and what is the status of your liver and kidney it could stay in your system for weeks and be detected by your urine of course that depend on what kind of urine and blood test they are doing because it does varied ...Read more

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How long does it take. 25mg of Lorazepam to wear off? Trying to determine when able to drive.

IMPRECISE: PEOPLE METABOLIZE MEDS AT DIFFERENT RATES AND ARE AFFECTED AT DIFFERENT DOSAGE LEVELS.=YOU HAVEN'T SAID HOW 0.25 AFFECTS YOU. ARE YOU CONCERNED ABOUT WHAT YOU EXPERIENCE OR IS IT ADVICE YOU'VE HAD TO BE CAREFUL ABOUT DRIVING ON MEDS?
cHECK WITH THE DR WHO'S PRESCEIBING IT. ...Read more

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Can I take ativan (lorazepam) before work?

Can I take ativan (lorazepam) before work?

Carefully: Ativan (lorazepam) is a valium derivative that is used for anxiety, tension, and for seizures. The side effect is sleepiness. Low doses are usually well tolerated and will relax you and allow usual function. Higher doses will put you to sleep. Understand why you are using it. Balance the benefit to the side effects. ...Read more

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How long does it take to get over lorazepam?

It depends...: On what you were using it for and what dose you were on. If you were using it for insomnia, you might find that you are sleeping better even after just one sleepless night off it. If you were on a large dose, you should taper it off slowly to avoid a seizure. For many people, Lorazepam is prescribed because of an anxiety disorder, and that doesn't go away on its own. Talk to your doctor. ...Read more

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How long does ativan (lorazepam) stay in your system?

How long does ativan (lorazepam) stay in your system?

6 to 8 hours active: Ativan (lorazepam) is a mid range benzodiazepine with an active period of 6-8 hours of sedation. After 6-8 hours, Ativan passes again through the liver. Now the liver breaks the Ativan into 2 parts- each part has no psycho-active effects. Lower dosages are used for geriatric adults and medically debilitated patients. Their bodies are slower to metabolize Ativan into its 2 inactive parts. ...Read more

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Just took 12mg ativan (lorazepam) how long before I die?

Just took 12mg ativan (lorazepam) how long before I die?

Hopefully, 60+ yrs: I'm thinking that you might have a part of you that wants another chance. This was an action that certainly is serious and may have done some significant damage - but it is not a drug that is reliable for ending life. Please don't take more - it may just do more harm. Please call a suicide help line - it's confidential and can really help you get through this hard time. ...Read more

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How long does ativan (lorazepam) last if you took 2mg of it?

Clinically it depend: Depends on whether you are used to taking it. If you are used to it you will continue to feels its effects for 6-8 hours. If you have never taken it before, you may feel for up to 16 hours. It takes about three days for it to leave your bloodstream. Lorazepam has all six benzodiazepine effects: anti-anxiety, anterograde amnesia, sedation/hypnosis, anticonvulsion, anti-vomiting, and muscle relaxation properties. ...Read more

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What symptoms should I expect from long term lorazepam abuse.

What symptoms should I expect from long term lorazepam abuse.

Not on your own: Cravings, anxiety, sleep disruption, nightmares, even seizures if you stop on your own...Better off get help. 1855 detox 00 or other na /aa hotlines might help. Ask your dr. Good luck. ...Read more

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How long should you need to take ativan (lorazepam) before it begins workng?

How long should you need to take ativan (lorazepam) before it begins workng?

DOSE DEPENDENT: Ativan (lorazepam) usually works within half an hour to an hour if the dose is sufficient. Different people respond differently. Start with a low dose and increase (daily) until there is a tranquilizing effect.
Overdosing creats peoblems. ...Read more

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Typically, how long does ativan (lorazepam) 1mg tabs last in your body once you take it?

Typically, how long does ativan (lorazepam) 1mg tabs last in your body once you take it?

It depends: It depends on the health of your liver, but the half-life of Ativan (lorazepam) is generally 10-20 hours. If we use 15 hours as half-life, then the whole dose should be gone in about 3 days. ...Read more

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I was on ativan (lorazepam) 6 mg for 15 days how long will the half life last I heard only a day or two?

More Information?: Please re-ask this question with some context on why you are asking. There is nothing about the half life of benzodiazepine medications on their own. If you are asking about testing then the average urine screening for benzos can easily pick these up for six weeks after the last use, regardless of the 'half life' of the medication. ...Read more

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My boyfriend take 16mg of ativan (lorazepam). I wonder how long the ativan (lorazepam) will affect him?

High dose: This is a very high dose. Is it under the supervision of a doctor or is he abusing medication. If the latter, he is likely an addict and I suggest you discuss his situation with an addictionologist or go to Al Anon meetings. ...Read more

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My Ativan (lorazepam) is as needed. 5 3x a day, Can I take two at one time? As long as I don't take more then 3 in one day.

My Ativan (lorazepam) is as needed. 5 3x a day, Can I take two at one time? As long as I don't take more then 3 in one day.

Great Question: The truth is that you CAN take two at a time. The real question is SHOULD you? Ativan (lorazepam) is a short-acting anti-anxiety medication that is very effective. When the effect wears off, patients are inclined to take more. This sets the stage for over-use, misuse and possibly abuse. Talk to your doctor before altering your medication dose or schedule. There are many options to managing your symptoms. ...Read more

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I was taking ativan (lorazepam) 3mg at bedtime for 6 weeks and stopped jan 23rd and still feel aweful. How long does this last?

I was taking ativan (lorazepam) 3mg at bedtime for 6 weeks and stopped jan 23rd and still feel aweful. How long does this last?

Not sure what it is.: You don't say why you were taking the Ativan (lorazepam) or how you now feel awful. The Ativan (lorazepam) itself is long ago out of your system, so it's not causing the problem. Did you have a return of whatever symptom you had before, e.g., not being able to get to sleep? Do you feel bad in a new way? Assuming a doctor prescribed the ativan, (lorazepam) speak with him/her about what's happened; no need to continue to suffer. ...Read more