How Long Does One Tresiba FlexTouch Pen Last?

In our latest question and answer, the pharmacist discusses how long one Tresiba FlexTouch pen will last based on how many units of insulin you use.

Question

I use the Tresiba FlexTouch pen, the 100 units per milliliter strength, at 10 units dosage daily. How many days will I get out of one pen?

Asked by skipper On Feb 25, 2019

Answered by
Medical Content Reviewed By PharmacistAnswers Staff

On Feb 25, 2019
Tresiba 100U Large Pen Image

Tresiba (insulin degludec) is a long-acting basal insulin that is injected once-daily for glucose control. It is often referred to as an 'ultra' long-lasting insulin since it has a duration of action of nearly 42 hours, significantly longer than other long-acting insulin products such as Lantus and Levemir.

Tresiba FlexTouch Pens

The Tresiba FlexTouch pens are available in two different strengths:

  • Tresiba U-100 (100 units/mL)
  • Tresiba U-200 (200 units/mL)

Each strength pen contains a total volume of 3 milliliters, therefore, the total units of insulin contained in each pen is as follows:

  • Tresiba U-100: 300 units of insulin per pen
  • Tresiba U-200: 600 units of insulin per pen

One of the benefits of the Tresiba FlexTouch pen is the long expiration date. While most insulin pen products expire 28 days after opening, Tresiba expires 56 days after opening.

Lastly, the Tresiba U-100 product contains 5 pens per box (total of 1500 units of insulin per box) while the Tresiba U-200 product contains 3 pens per box (total of 1800 units of insulin per box).

All of the above information is summarized in the infographic below:

Tresiba U100 And U200 Attribute Comparison Infographic

How Long Does Each Tresiba Pen Last?

How long a Tresiba FlexTouch pen will last depends on which strength pen you are using (U-100 or U-200) and the units of insulin per day you are taking. Remember:

  • One Tresiba U-100 FlexTouch pen contains 300 units of insulin per pen.
  • One Tresiba U-200 FlexTouch pen contains 600 units of insulin per pen.

The chart below details how long one Tresiba FlexTouch pen will last based on the number of units you are injecting per day. The chart starts at 10 units per day, the recommended starting dose per the manufacturer for most individuals.

How Long One Tresiba FlexTouch Pen Lasts Based On Units Used Per Day

Insulin Units Used Per DayTresiba FlexTouch U-100Tresiba FlexTouch U-200
1030 Days56 Days (Per Expiration)
1127 Days54 Days
1225 Days50 Days
1323 Days46 Days
1421 Days42 Days
1520 Days40 Days
1618 Days37 Days
1717 Days35 Days
1816 Days33 Days
1915 Days31 Days
2015 Days30 Days
2114 Days28 Days
2213 Days27 Days
2313 Days26 Days
2412 Days25 Days
2512 Days24 Days
2611 Days23 Days
2711 Days22 Days
2810 Days21 Days
2910 Days20 Days
3010 Days20 Days
319 Days19 Days
329 Days18 Days
339 Days18 Days
348 Days17 Days
358 Days17 Days
368 Days16 Days
378 Days16 Days
387 Days15 Days
397 Days15 Days
407 Days15 Days
417 Days14 Days
427 Days14 Days
436 Days13 Days
446 Days13 Days
456 Days13 Days
466 Days13 Days
476 Days12 Days
486 Days12 Days
496 Days12 Days
506 Days12 Days
515 Days11 Days
525 Days11 Days
535 Days11 Days
545 Days11 Days
555 Days10 Days
565 Days10 Days
575 Days10 Days
585 Days10 Days
595 Days10 Days
605 Days10 Days
614 Days9 Days
624 Days9 Days
634 Days9 Days
644 Days9 Days
654 Days9 Days
664 Days9 Days
674 Days8 Days
684 Days8 Days
694 Days8 Days
704 Days8 Days
714 Days8 Days
724 Days8 Days
734 Days8 Days
744 Days8 Days
754 Days8 Days
763 Days7 Days
773 Days7 Days
783 Days7 Days
793 Days7 Days
803 Days7 Days
813 Days7 Days
823 Days7 Days
833 Days7 Days
843 Days7 Days
853 Days7 Days
863 Days6 Days
873 Days6 Days
883 Days6 Days
893 Days6 Days
903 Days6 Days
913 Days6 Days
923 Days6 Days
933 Days6 Days
943 Days6 Days
953 Days6 Days
963 Days6 Days
973 Days6 Days
983 Days6 Days
993 Days6 Days
1003 Days6 Days
1012 Days
5 Days
1022 Days
5 Days
1032 Days
5 Days
1042 Days
5 Days
1052 Days
5 Days
1062 Days
5 Days
1072 Days
5 Days
1082 Days
5 Days
1092 Days
5 Days
1102 Days
5 Days
1112 Days
5 Days
1122 Days
5 Days
1132 Days
5 Days
1142 Days
5 Days
1152 Days
5 Days
1162 Days
5 Days
1172 Days
5 Days
1182 Days
5 Days
1192 Days
5 Days
1202 Days
5 Days
1212 Days
4 Days
1222 Days
4 Days
1232 Days
4 Days
1242 Days
4 Days
1252 Days
4 Days
1262 Days
4 Days
1272 Days
4 Days
1282 Days
4 Days
1292 Days
4 Days
1302 Days
4 Days
1312 Days
4 Days
1322 Days
4 Days
1332 Days
4 Days
1342 Days
4 Days
1352 Days
4 Days
1362 Days
4 Days
1372 Days
4 Days
1382 Days
4 Days
1392 Days
4 Days
1402 Days
4 Days
1412 Days
4 Days
1422 Days
4 Days
1432 Days
4 Days
1442 Days
4 Days
1452 Days
4 Days
1462 Days
4 Days
1472 Days
4 Days
1482 Days
4 Days
1492 Days
4 Days
1502 Days
4 Days
1511 Day
3 Days
1521 Day
3 Days
1531 Day
3 Days
1541 Day3 Days
1551 Day3 Days
1561 Day
3 Days
1571 Day
3 Days
1581 Day
3 Days
1591 Day
3 Days
1601 Day3 Days

Note: Tresiba FlexTouch pens must be 'primed' with 2 units of insulin each dose. Insulin lost from priming should not significantly affect how long one Tresiba FlexTouch pen lasts. Most manufacturers provide some overfill to account for the insulin used for priming.


References

About the Pharmacist

Dr. Brian Staiger Pharm.D

Dr. Brian Staiger is a licensed pharmacist in New York State and the founder of PharmacistAnswers.com. He graduated from the University At Buffalo with a Doctor of Pharmacy degree in 2010. He has been featured in numerous publications including the Huffington Post as well as a variety of health and pharmacy-related blogs. Please feel free to reach out to him directly if you have any inquiries or want to connect! He's answered thousands of medication and pharmacy-related questions and he's ready to answer yours! Brian.Staiger@PharmacistAnswers.com Office: 716-389-3076

Recent Questions