General
Novolin N (Insulin isophane)
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Novolin N (Insulin isophane)

With our quick and easy online prescription process, you can manage your health effortlessly — whether you need a first-time prescription for Novolin N (Insulin isophane) or a refill of an existing one.

Licensed providers in all 50 states

Expert-guided, evidence-based treatments

Skip the trip to the doctor's office

Visit options

Costs shown are for the visit only. You'll pay for medication at your preferred pharmacy.

Video Visit

$25

Est. or $100 w/o insurance

Chat Visit

$30

w/o insurance

Most insurance accepted

Board-certified

No hidden fees

Available nationwide

What is Novolin N (Insulin isophane)?

Novolin N is an intermediate-acting NPH insulin used to provide background blood sugar control for people with Type 1 or Type 2 diabetes. Unlike rapid-acting insulins that cover mealtime glucose spikes, Novolin N works more slowly—onset around 1–2 hours, peak effect at 4–12 hours, and duration up to 18–24 hours—providing coverage between meals and overnight. It's a human insulin suspension that must be gently rolled before each injection to evenly distribute the insulin crystals. It can be used alone or mixed with short-acting regular insulin to provide both background and mealtime coverage.

Intermediate-acting basal coverage

NPH insulin's protamine suspension creates a depot under the skin that releases insulin slowly over hours, providing gradual background glucose control between meals and overnight rather than the rapid action of mealtime insulins.

Human insulin formulation

Novolin N is identical in structure to human insulin, produced by recombinant DNA technology—a well-established, widely available formulation used for decades across all diabetes types.

Mixing compatibility

Can be mixed with short-acting regular insulin in the same syringe, allowing patients to administer both background and mealtime insulin coverage in a single injection—reducing the number of daily injections required.

Virtual visit with clinician

Ongoing support, always available.

You’ll be supported by experienced clinicians who care for a wide range of health needs, from everyday concerns to more complex conditions.

Our clinicians track your progress over time and adjust your care as needed. If medication is prescribed, we’ll manage dosing and monitor for side effects. If lab testing is recommended, we review results and refine your plan accordingly. You’re never left to navigate care on your own.

All your care in one place. That’s the General Medicine difference.

We help you understand your options, connect you to the right clinicians, manage prescriptions, coordinate any needed evaluations, and keep an eye on your overall health along the way. It’s comprehensive care that looks at the full picture — your goals, your history, your lifestyle — and makes it simple to move forward with confidence.

Your care plan
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What our customers have to say

“I feel like I’m finally on the right path to improving my health with the right support now! It’s so refreshing and reassuring.”

Emerald

“My experience with General Medicine was amazing. The understanding and care that was taken to figure out what is exactly going on with me. I feel like a weight has been lifted off of me.”

Kaylee

“I couldn’t be happier with my experience with General Medicine! They are fast, responsive, kind and knowledgeable. It is much easier, more affordable and faster.”

Nika

Get the care you need, without the wait.

Frequently Asked Questions

What type of insulin is Novolin N and when does it peak?

Novolin N is intermediate-acting NPH insulin. It typically starts working 1–2 hours after injection, peaks at 4–12 hours, and lasts up to 18–24 hours — providing extended background coverage between meals and overnight.

Why do I need to roll the Novolin N pen or vial before use?

NPH insulin is a suspension — the active insulin particles settle over time. Rolling or gently tipping (not shaking) the pen or vial before each use ensures uniform distribution for a consistent dose.

Can I mix Novolin N with regular insulin?

Yes. NPH insulin can be mixed with regular human insulin in the same syringe — draw regular insulin first. Do not mix NPH with insulin analogs like NovoLog, Humalog, or Lantus in the same syringe.

What side effects might I experience?

Hypoglycemia (low blood sugar) is the primary risk — particularly during the peak activity window of 4–12 hours after injection. Symptoms include shakiness, sweating, confusion, and rapid heartbeat. Injection site reactions can also occur.

How is Novolin N different from long-acting insulins like Lantus?

Novolin N has a more pronounced peak effect, shorter duration, and more variable action than modern long-acting analogs like Lantus or Levemir. It requires more careful timing relative to meals and activities.
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