Best Answer

there are just so many factors that go into it that a blanket question like that cannot be answered without more info. I take around 60mg a day and way 220lbs. I commonly take up to 120mg when I have a lot going on at work. I also have a tolerance from taking it for the past 10 years. But I highly dislike the people who say "omg yes that's way to much!! See a doctor" or the drug addicts who just took 300mg and are tweaking out writing rants about how messed up they are. Anyways, over in the UK they did an actual study on ppl overdosing on Adderall and ended up coming to the ballpark method of for calculating the "fatal dose of adderall" it is 20-25 / your weight in kg.... So a person who ways 150lbs (assuming no pure existing medical conditions) would die around 1336mg of adderall ... Bam how's that for an objective answer.

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Q: Is 90 mg of adderall xr an overdose?
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Related questions

What does Adderall XR 120 mg look like?

The highest dosage Adderall XR comes in is 30 mg.

How many days will adderall xr keep you up if snorted?

150 mg of adderall

What is the difference between pink 20 mg Adderall and the orange 20 mg Adderall?

Blues 10mg/Orange 20mg

Would you be ok if you take 140 mg of Adderall XR that is not prescribed to you?


If you take 40 mg of adderall and 60 mg adderall xr daily when should you take your 150mg Wellbutrin XL?

unless you have depression, i dont think that the wellbutrin is needed. i got put on adderall xr and wellbutrin at first but they counteracted eachother. adderall should do the jobalone

Will adderall xr 10 mg show up on a urine test?


What color is 15 mg of adderall xr?

Half is blue, half is white.

I am currently taking 20 mg Adderall XR and feel absolutely no effect from it Could I ask the doc for a Dexedrine booster?

Yes, I am taking 2 20 mg Adderall XR's daily and feel NO EFFECT from it whatsoever!!

What is safe to take with Adderall xr for occasional anxiety?

Ativan, Xanax, Klonopin ~ all the benzos. I take 60 XR Adderall per day and about 3 Ativan 2 mg.

Is 10mg of Adderall a lot?

This would depend on how long you need the pill to last. 10 mg of regular adderall will only last about 4 to 6 hours, whereas, a 10 mg XR adderall can last anywhere from 10 to 12 hours. Once you decide how many hours you need it to last for you, it would be good to try different dosages of the particular one you chose. For example, if you chose the 10 mg adderall XR and you feel it is not as strong as you would like, ask your doctor to up your dosage to about 20 mg XR. Every XR will last the same amount of time, the dosage only intensifies the effects.

What lasts longer Generic Adderall or Adderall XR?

Adderall XR lasts longer. The XR stands for extended release and lasts around 8-12 depending on the consumer, mg, & tolerance. Generic Adderall which is actually Adderall IR (Instant Release) only lasts for a few hours (about 4 depending on the mgs) because Adderall XR is made from 2 different "beads" which one type releases automatically n the other type releases in about 4 hours so in the end Adderall xr lasts about 8 - 12 hours. When you pay for the Adderall XR you are paying for the extended release feature. SO Adderall XR lasts longer than Adderall IR.

How long does two twenty-five mg dosage of adderall xr last?

10 hours