Please note: a valid prescription is required for all prescription medication.
These cartridges contain a long-acting insulin used to control blood sugar. They fit a compatible reusable pen and provide steady basal coverage. This page explains how the product works, who it suits, and how to use it. It also outlines access options, including US delivery from Canada and typical ways to manage costs without insurance.
What Lantus Is and How It Works
Lantus® contains insulin glargine, a long-acting basal insulin. After subcutaneous injection, microprecipitates form and release small amounts of insulin over about 24 hours. This slow release helps maintain stable background insulin levels between meals and overnight. The treatment is not for rapid correction of high glucose or for diabetic ketoacidosis. It is intended for once-daily use at the same time each day.
CanadianInsulin.com is a prescription referral platform. We verify prescriptions with your prescriber when required, and licensed Canadian pharmacies dispense your order.
This medicine can be used alone or with mealtime insulin. Dose and timing come from your prescriber and the official label. Avoid injecting into areas that are red, thickened, or scarred. Rotate sites to lower the risk of skin changes.
Who It’s For
This basal insulin is indicated for adults with type 1 or type 2 diabetes who need long-acting insulin support. It is also used in pediatric patients with type 1 diabetes when age-appropriate per the official label. It is not approved for treating diabetic ketoacidosis. People with recurrent severe hypoglycemia or insulin allergy should discuss risks with a healthcare professional.
Dosage and Usage
Use the cartridges in a compatible reusable pen as instructed by your prescriber. Typical use is once daily at the same time. Your dose is individualized. Do not share pens or needles. Prime the pen before each injection per the device instructions, and confirm you can see insulin at the needle tip before dosing. Select a new sterile needle for every injection.
Choose a site in the abdomen, thigh, or upper arm. Rotate within and between sites. Pinch up the skin if instructed, insert the needle at the proper angle, deliver the dose, and keep the needle in place for several seconds to ensure full delivery. Lantus Cartridges for reusable pen should not be mixed with other insulins or used in an insulin pump. Do not administer intravenously.
Strengths and Forms
These cartridges are designed for basal insulin delivery via a reusable pen. Availability can vary by pharmacy and region.
- Lantus Cartridges 100 units/mL 3 mL per cartridge; typically supplied as a multi-cartridge pack
- Packaging options may include a 5-cartridge set depending on supply
- Other presentations include prefilled pens and vials; see our insulin category for alternatives
Check your specific pen’s compatibility before ordering. For more options, explore Insulin Cartridges and the Type 1 Diabetes category.
Missed Dose and Timing
If you miss a dose, follow the guidance on the official label or contact your prescriber for advice. In general, consider taking it when remembered if the next dose is not due soon. Do not take two doses at once. Monitor glucose more often after a missed dose. Keep a record of doses and set reminders to reduce missed doses. For supply planning, many patients prefer Insulin glargine 3 mL cartridges 5 pack to maintain continuity.
Storage and Travel Basics
Unopened cartridges should be stored under the temperature range stated on the label, away from light. Do not freeze insulin. Once in use, keep cartridges at recommended room temperature and discard after the labeled in-use period. Do not expose to heat or direct sunlight. Keep out of reach of children. When traveling, carry insulin and supplies in your hand luggage with backup needles and a prescription copy. Consider a travel letter if crossing borders. Use temperature-controlled handling when required and check the cartridge visually; the solution should be clear and colorless without particles.
Keep spare pen needles and a pen-cap in your kit. If you use a reusable device, review the device manual before travel. A protective case can help prevent damage in bags. For pen compatibility and accessories, see the Novopen 4 and Reusable Cartridge Pen category.
Pen Handling and Sharps Disposal
Before each injection, attach a new needle, prime according to the pen instructions, and confirm unobstructed flow. Dial the prescribed dose. After injection, keep the needle in the skin for the recommended time to ensure full delivery. Remove and safely discard the needle in an approved sharps container. Do not recap with two hands. Do not reuse needles. Never share your pen, cartridges, or needles.
Benefits
This therapy provides round-the-clock basal insulin coverage to support fasting and between-meal glucose control. Once-daily administration may simplify routines. Using a compatible reusable pen can help with discrete dosing and fine unit adjustments. Cartridges may reduce plastic waste compared with multiple disposable pens.
Side Effects and Safety
- Low blood sugar symptoms such as shakiness, sweating, or confusion
- Injection-site reactions including redness or irritation
- Weight gain or mild swelling
- Skin changes at injection sites with poor rotation
Serious reactions can include severe hypoglycemia, allergic reactions, and low potassium. Thiazolidinediones used with basal insulin may increase the risk of fluid retention and heart failure in susceptible patients. This medicine can cause hypoglycemia, especially if meals are skipped, activity increases, or other glucose-lowering therapies are added. Seek urgent care for severe symptoms.
Drug Interactions and Cautions
Agents that can raise glucose, such as corticosteroids or certain decongestants, may reduce insulin effect. Medicines that can lower glucose, such as ACE inhibitors, may increase sensitivity. Beta-blockers may mask some signs of low blood sugar. Alcohol can enhance or reduce insulin effect unpredictably. Review all medicines and supplements with your prescriber. Do not change your dose without medical guidance.
What to Expect Over Time
With consistent daily administration, fasting glucose may stabilize as directed by your care plan. Your prescriber may review glucose logs and A1C regularly to assess control. Expect dose adjustments at times, based on patterns and overall goals. Maintain a consistent injection time, practice site rotation, and keep a record of readings. Have quick sugar available for hypoglycemia treatment. If your regimen changes, follow instructions from your clinician.
Compare With Alternatives
Several long-acting options are available. A biosimilar glargine may be suitable for some patients; see Buy Basaglar® for a cartridge format. Another alternative is detemir; the Penfill format may fit reusable devices; review Buy Levemir® for details. Your prescriber can help decide which basal insulin aligns with your therapy goals.
Pricing and Access
We connect you with Canadian pharmacy partners for consistent supply. You can review options and typical savings for Insulin glargine cartridges Canadian pricing on our product page. Compare pack sizes and check the current offer. US shipping from Canada is available on eligible orders. For coupons and seasonal deals, visit our Promotions page.
Availability and Substitutions
Supply can vary. If the requested pack is unavailable, your prescriber may recommend a therapeutically appropriate alternative or a different presentation. Multi-cartridge packs such as an insulin glargine 3 mL set may help reduce refill frequency when available. Pharmacy teams follow your prescription and local regulations on substitutions.
Patient Suitability and Cost-Saving Tips
This treatment may suit adults and appropriate pediatric patients who need basal insulin as part of a comprehensive plan. It may not suit those with recurrent severe hypoglycemia or insulin allergy. Ask about multi-month supplies to minimize per-pack costs and reduce refill trips. Set calendar alerts for reorders and bring enough supplies for travel. Consider prescription synchronization with other diabetes items. Some patients look for Insulin glargine cartridges from Canada to compare options and budget planning.
Questions to Ask Your Clinician
- Starting dose and target fasting range
- How to rotate sites effectively
- Recognizing and treating low blood sugar
- Whether other medicines affect insulin needs
- When to adjust timing during schedule changes
- Travel storage tips for long trips
- Which reusable pens are compatible
Authoritative Sources
Sanofi Lantus Prescribing InformationFDA DailyMed: Insulin GlargineHealth Canada Drug Product Database
Ready to proceed? Buy Lantus Cartridges online with prompt, express, cold-chain shipping that Ships from Canada to US. This information is not a substitute for medical advice; always follow your prescriber and the official label.
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How do I switch from another basal insulin to this one?
Switching between basal insulins requires prescriber guidance. The dose and timing may differ across products, and device instructions vary. Your clinician will review your current regimen, glucose logs, and any hypoglycemia history before recommending a plan. Follow the official label for transition instructions and monitoring. Do not switch on your own, and do not mix different insulins in the same device. Keep frequent glucose checks during any change and carry hypoglycemia treatment supplies.
Which reusable pens work with these cartridges?
Use only compatible pens approved for this cartridge format. Check the device manual and the product label for the correct match. The dose increment, priming procedure, and maximum dialable units vary by pen. If unsure, ask your pharmacist or prescriber to confirm compatibility before use. Never force a cartridge into an incompatible device, and do not modify the pen. Keep a spare pen for travel in case of device malfunction.
Can I use it with rapid-acting insulin at meals?
Many patients use a basal-bolus approach with mealtime insulin alongside basal coverage. Your clinician may prescribe rapid-acting insulin for meals and corrections. Keep the basal dose separate and never mix in the same cartridge or syringe. Monitor glucose regularly and track patterns. Any adjustments should be made by your healthcare professional according to the official label and individualized goals.
What should I do if my blood sugar goes low?
Treat mild hypoglycemia with a quick source of sugar as advised by your clinician, then recheck levels. If severe symptoms occur, seek immediate medical help. Review recent doses, meals, and activity to identify causes. Consider carrying glucose tablets and a medical ID. Discuss prevention strategies with your prescriber, especially if lows are frequent. Beta-blockers may mask symptoms, so extra monitoring may be needed.
How long can an in-use cartridge be kept at room temperature?
Follow the in-use time and temperature limits on the official label, which specify how long a cartridge can remain at room temperature once opened. Keep away from heat, direct sunlight, and moisture. Do not use if the solution becomes cloudy or contains particles. Never freeze insulin, and discard the cartridge after the labeled in-use period, even if some insulin remains.
Is this insulin appropriate for children?
Basal insulin can be used in pediatric patients with type 1 diabetes when age-appropriate according to the label. Pediatric dosing and monitoring require careful supervision by a clinician. Discuss safety, injection-site rotation, and hypoglycemia recognition with the care team. The decision depends on age, prior insulin use, and treatment goals. Do not adjust doses without guidance from a healthcare professional.
Can I drive after injecting my dose?
You can generally drive if your blood sugar is in a safe range and you feel well. Monitor levels before driving, especially if you recently adjusted your dose or exercised. Keep fast-acting carbohydrate available in the vehicle. If you experience symptoms of hypoglycemia, stop safely and treat it. Consult your prescriber if you have frequent lows or episodes of impaired awareness of hypoglycemia.
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