# Peri Rx timing question

**URL:** <https://forum.barbellmedicine.com/t/peri-rx-timing-question/5656>\
**Category:** Nutrition Q&A \[Moderated\]\
**Created:** [May 4, 2019, 12:29am UTC](https://forum.barbellmedicine.com/t/peri-rx-timing-question/5656 "2019-05-04T00:29:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jfsully](https://avatars.discourse-cdn.com/v4/letter/j/ea5d25/32.png) [@jfsully](https://forum.barbellmedicine.com/u/jfsully)\
**Post date:** [May 4, 2019, 12:29am UTC](https://forum.barbellmedicine.com/t/peri-rx-timing-question/5656/1 "2019-05-04T00:29:10Z")

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Hi Jordan…

aside from caffeine, do any of the ingredients in Peri Rx have an acute/transient effect? My reading on this is that mostly these are things that are good to have on board basically all the time. Except for maybe the BCAAs at intervals for protein synthesis, and the aforementioned caffeine.

Ive been taking 2 scoops before training, and just hydrating afterward, or sometimes a whey shake.

am I missing out on any incremental benefit by not taking a scoop of Peri Rx post-workout?

thanks  
jfsully

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**Author:** ![Jordan\_Feigenbaum](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.barbellmedicine.com/jordan_feigenbaum/32/1315_2.png) [@Jordan\_Feigenbaum](https://forum.barbellmedicine.com/u/Jordan_Feigenbaum)\
**Post date:** [May 5, 2019, 4:30pm UTC](https://forum.barbellmedicine.com/t/peri-rx-timing-question/5656/2 "2019-05-05T16:30:04Z")

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There’s some data suggesting beta alanine and betaine absorption is better in smaller doses, but I don’t know how strongly I feel about that. I think it’s likely okay 🙂