# Switching from Lantus to Tresiba

**URL:** <https://forum.fudiabetes.org/t/switching-from-lantus-to-tresiba/3285>\
**Category:** Type 1 & LADA\
**Created:** [January 19, 2018, 1:00pm UTC](https://forum.fudiabetes.org/t/switching-from-lantus-to-tresiba/3285 "2018-01-19T13:00:58Z")\
**Posts on this page:** 1\
**Showing post:** 19

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**Author:** ![Michel](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/michel/32/387_2.png) [@Michel](https://forum.fudiabetes.org/u/Michel)\
**Post date:** [January 22, 2018, 7:57pm UTC](https://forum.fudiabetes.org/t/switching-from-lantus-to-tresiba/3285/19 "2018-01-22T19:57:22Z")

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> [@Katers87](#):
>
> Looks like what happened the night before was a legit sign that I needed more basal.

It would make sense, since Tresiba requires 3 days to establish. @Sam had a cool wiki about this:

> [@Tresiba: how do I calculate my daily dose?](https://forum.fudiabetes.org/t/tresiba-how-do-i-calculate-my-daily-dose/398/):
>
> I take X units of basal insulin daily. Tresiba lasts longer than 1 day. Should I take less each day or take it every other day? NO! You should do neither! Tresiba is a once-daily basal insulin that can be taken at any time of day, but must be taken every single day. For users already on insulin therapy and switching to Tresiba, they should start with the same number of units of Tresiba as their previous total daily basal dose. Many users, myself included, were concerned about the potential…

I particularly liked the triple Tresiba curve, which makes a good visual case.

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