Adderall XR vs Adderall

If you decide to switch from cheap Adderall IR (instant release) tablets to Adderall XR (extended-release) capsules you are to be aware of few factors which make these two similar preparations different. By browsing information online you will certainly find some separate facts explaining this difference. To make your life easier you can read the peculiarities of each drug after the comparison of Adderall XR vs Adderall IR.

Below you can compare the rules of application of Adderall IR and Adderall XR pills to get rid of any doubts and questions.

Adderall XR vs Adderall: key differences

Adderall generic or IR is produced by Teva Pharmaceuticals while the Adderall XR manufacturer is Shire Pharmaceuticals. Due to this fact there are different strengths and doses are recommended to be applied when using these drugs.

Adderall instant release bars are taken orally prior to a meal, while the contents of Adderall XR caps can be sprinkled into a meal.

Different FDA approved uses.

Adderall IR has been approved by FDA (1996) for treating ADHD only in children and as a monotherapy of narcolepsy and obesity in adults, while Adderall XR bars were approved (2004) for treating the attention deficit disorder in adults.

Compare the longevity of efficacy.

Adderall generic is taken twice or thrice per day, with 4-6 hour intervals. Adderall XR capsules are taken once per day, in the morning and affect for a longer time period (about 8 hours vs 4 hours of Adderall IR).


Adderall generic is considerably cheaper than Adderall XR. But you will require taking Adderall IR in a larger quantity than Adderall extended-release capsules.

Also Adderall XR vs Adderall the last one is considered less troublesome and cheaper. However, many patients switch to Adderall XR if they stop notice any effects provided by Adderall IR or simply because Adderall XR caps are easier to swallow and dose.