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Frequently Asked Questions


Why should I choose CareFine® pen needles?

CareFine® pen needles are of the highest quality and made with the latest and greatest in needle technology.  Here are some of the features that make them the perfect choice.  CareFine’s Maxflow™ technology is an extra thin needle wall that allows for a more rapid flow rate resulting in reduced injection time..  They are electro polished and have a high grade silicone coating to provide a more comfortable injection experience.  Our anti-coring process clears the needle of any burrs or debris, which results in  a clean piercing.  In addition CareFine® pen needles are available in a wide variety of sizes to meet your needs and provide a cost savings over other national brands.

What is Quintapoint® five bevel technology?

Quintapoint® is the newest innovation in pen needle technology. Five beveled needle edges provide additional injection comfort. This unique design features two additional precision cut bevels that create a flatter and thinner needle tip geometry resulting in a smooth injection.

Insufficient insulin dose

The pen needle could be clogged with crystalized insulin, use a new pen needle for each injection and always prime your insulin pen before each injection according to your pen device manufactures instructions. Under dosing can also be caused by removing the pen needle too quickly after injection. Inject slowly and count to 10 before removing the pen needle. Avoid injecting into the muscle or into scar tissue. Insulin should be delivered into the fatty subcutaneous tissue.  Use shorter lengths or the pinch up technique to avoid injecting into the muscle. Lipohypertrophy or skin hardening scar tissue can result from injecting into the same site.  Avoid this by always practicing site rotation.  Absorption of insulin can be delayed if you inject into scar tissue.

Which pens are Timesulin compatible with?

Timesulin is currently compatible with these insulin pens:
Novo Nordisk Flexpen®

· NovoRapid®
· Levemir®
· Victoza®
· Novolog®
· Novolog Mix70/30®
· Protaphane HM(ge)®

Sanofi SoloSTAR®

· Lantus®
· Apidra®
· Insuman®

Lilly Kwikpen™

· Humalog®
· Humalog Mix50®
· Humalog Mix75®
· Humulin®

Novo Nordisk FlexTouch

· Novorapid®
· Levemir®
· Tresiba 100®
· Tresiba 200®

How is Timesulin unique?

Timesulin is unique in a number of ways:

  • No need to change the existing insulin pen brand trusted by the user, or recommended by their doctor
  • No change in routine
  • Cost efficient solution that only needs to be replaced once a year

Timesulin requires no programming. It works straight out of the packaging

The nearest comparable product was created by the pharmaceutical group Lilly and called HumaPen Memoir.

In order to use this product, users would have to:

  • Change their brand of insulin
  • Study the 21-page instruction manual
  • Program the dense mechanics of this too

Timesulin offers a simple solution that doesn’t involve all the ‘bells and whistles’ – it simply shows you how long it’s been since you last took your insulin injection. That’s it.

How does Timesulin work?

Timesulin is a smart cap with a built-in timer device that shows how long it’s been since the last insulin injection was last administered.

It works with all major disposable insulin pens and acts as replacement cap.

Inside the Timesulin cap is a patented switch that activates your timer after you’ve taken an injection to help you know for sure whether you took your shot or not.

When does the timer reset?

We’ve studied many people taking insulin injections. Sometimes, people take off the cap briefly to see how much insulin is left. If you take off the cap for less than 8 seconds, you probably didn’t take an injection and we don’t reset the timer.

If the cap is off for more than 8 seconds, Timesulin assumes you took an injection and the timer is reset.

What do I do if the timer does not reset?

As with all things technology, the mechanics could go wrong.

If your display counter is not resetting after 8 seconds of being off the pen, please contact us or call 1-844-432-6680.

How long does the battery last?

Each Timesulin cap comes with a built-in battery, which is non-replaceable.

Your Timesulin unit’s battery will last for at least 12 months – sometimes longer, depending upon use, temperature etc.
Once the battery starts running low on power, your screen will start fading, giving you the visual clue that it’s time to purchase a replacement.

Does it tell me when to take my injection?

No. Timesulin will show you how long it’s been since you last took your insulin injection, thus helping to avoid missing your dose, or accidentally double dosing.

In order to keep using Timesulin as simple as possible, we didn’t include any additional functions like memory or alarms. If you’ve ever had to figure out how to program a technical device with tiny buttons and difficult instruction manuals we think you’ll appreciate Timesulin’s simple approach to making life easier for all with diabetes.

Painful injections

Always use a new pen needle for maximum comfort. Allow skin cleansing topical alcohol to completely dry before injecting. Change the injection site regularly. Inject medication at room temperature. Penetrate the skin quickly. Use the shortest pen needle size to avoid injecting into the muscle. Use the thinnest pen needle gauge. Always consult with your healthcare provider before changing your pen needle length or gauge.

Where can I get more information on Diabetes?

There are many sites dedicated to diabetes education as well as magazines, books and blogs. Some of these resources are below.

ADA (American Diabetes Association)
CWD (Children with Diabetes)
Diabetes Self-Management
Diabetes Mine
Diabetes Health
Diabetic Living
Diabetes Forecast

Can I re-use CareFine® pen needles?

All pen needles are for single use only. Reusing a needle can dull, bend or damage the tip causing potential increased pain, infection, bleeding, bruising or scarring. Re-using a needle can also cause the needle to become clogged as insulin can crystallize inside the needle which can result in inaccurate dosing.

Are CareFine® pen needles compatible with my pen?

Yes, every size of CareFine® pen needles are compatible with most diabetes pens sold in the US. They have been tested in accordance with the international standards for connectivity and dose accuracy. Please reference our compatibility chart of pens with images. If you cannot find your pen please contact us.

What pen needle sizes are available?

CareFine™ pen needles are available in all standard sizes:
(4mm x 32G, 5mm x 32G, 6mm x 32G, 6mm x 31G, 8mm x 31G, 8mm x 30G, 12.7mm x 29G)
The Quintapoint™ technology is currently available in the 4mm x 32G, 5mm x 32, 6mm x 32G and 8mm x 31G

How do I select the right pen needle length and gauge?

You should always consult with your healthcare provider when choosing or changing your needle length and gauge. The larger number of the gauge, the thinner the needle, so the 32G x 4mm pen needle is the thinnest and shortest available in the market. The dose amount and your physical makeup will play a part in which size is best for you. According to the review of 157 relevant clinical papers by 127 experts from 27 countries it is noted that even in obese patients, needles shorter than 8mm have equal efficacy and reduce the chance of an intramuscular injection.*

How do I attach CareFine® pen needles?

Attach your CareFine® pen needle by threading / twisting the needle onto your pen clockwise until fully attached. Always attach pen needles straight onto the pen to avoid damaging, breaking or bending the needle.

How do I safely remove and dispose of CareFine® pen needles?

Detach your pen needle immediately after each injection by twisting counterclockwise. Never leave a pen needle attached to the pen when not in use. Dispose into a sharps container or into an empty re-sealable household container. Once the container is full; seal the lid, label container with SHARPS if not using a labeled sharps container and dispose according to your local sanitation or health department, physician or pharmacist’s instructions.

Do I need a prescription to purchase CareFine® pen needles?

It varies from state to state whether a prescription is needed to purchase pen needles, but if your pen needles are covered under your health insurance plan a prescription is required for reimbursement.

Do I have to rotate my injection site?

Yes, site location and rotation is a very important part of insulin delivery. In order to avoid damaging your tissue and causing scar tissue build up, known as lipohypertrophy you must rotate (change) your injection sites. Consult your healthcare provider for their recommendation for site rotation. The most common injection sites include the stomach, upper arm, thigh and buttocks. Inject into the same general area for 1-2 weeks at least 1” apart each time and then move to another area of your body.

Do I need a prescription to buy/use Timesulin?

No prescription is needed buy or use Timesulin.

The content of this website is for informational purposes only and should not be a substitute for professional medical advice.

*http://www.ncbi.nlm.nih.gov/pubmed/20429832_Comparative glycemic control, safety and patient ratings for a new 4mm x 32G insulin pen needle_Hirsch LJ, Gibney MA, Albanese J, Qu S, Kassler-Yaub K, Klaff LJ, Bailey TS