Insulin Susp Isophane Recombinant Human: uses, dosing, side effects & brands
Insulin Susp Isophane Recombinant Human is a medicine sold in the U.S. under 2 brand and generic names. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.
Key facts
- Available as
- Injectable
- Sold as
- 2 products — Novolin N and Humulin N
- Prescription?
- Over the counter
- Generic available?
- Not in our catalog
How insulin susp isophane recombinant human is dosed
From the FDA label for Novolin N (application BLA019959). Other insulin susp isophane recombinant human products — different forms, different strengths — are dosed differently. Follow the label for the one you were prescribed.
See Full Prescribing Information for important administration instructions. ( 2.1 ) • Inject subcutaneously in abdominal wall, thigh, upper arm, or buttocks and rotate injection sites to reduce the risk of lipodystrophy and localized cutaneous amyloidosis. ( 2.1 ) • Individualize and adjust dosage based on metabolic needs, blood glucose monitoring results and glycemic control goal. ( 2.2 ) • Administer NOVOLIN N once or twice daily. ( 2.2 ) • In patients with type 1 diabetes, NOVOLIN N should generally be used in regimens that include a short-acting insulin. ( 2.2 ) • NOVOLIN N can be mixed with NOVOLIN R. ( 2.4 ) 2.1 Important Administration Instructions • Always check insulin labels before administration [see Warnings and Precautions ( 5.4 )]. • NOVOLIN N is a suspension that must be resuspended immediately before use. Resuspension is easier when the insulin has reached room temperature. • To resuspend vial, roll the vial gently in your hands in a horizontal position 10 times until the suspension appears uniformly white and cloudy. Inject immediately. • To resuspend FlexPen, gently move the pen up and down 20 times so the glass ball moves from one end of the cartridge to the other until the suspension appears uniformly white and cloudy. Inject immediately. • Inspect NOVOLIN N visually before use. Do not use NOVOLIN N if discoloration or particulate matter is seen. •…
Insulin Susp Isophane Recombinant Human side effects
The following adverse reactions are also discussed elsewhere in the labeling: • Hypoglycemia [see Warnings and Precautions ( 5.3 )] • Hypoglycemia Due to Medication Errors [see Warnings and Precautions ( 5.4 )] • Hypersensitivity Reactions [see Warnings and Precautions ( 5.5 )] • Hypokalemia [see Warnings and Precautions ( 5.6 )] Adverse Reactions from Clinical Studies or Postmarketing Reports The following additional adverse reactions have been identified during clinical studies or from postmarketing reports with use of NOVOLIN N. Because some of these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or to establish a causal relationship to drug exposure. Adverse reactions associated with insulin initiation and glucose control intensification Intensification or rapid improvement in glucose control has been associated with a transitory, reversible ophthalmologic refraction disorder, worsening of diabetic retinopathy, and acute painful peripheral neuropathy. Over the long-term, improved glycemic control decreases the risk of diabetic retinopathy and neuropathy. Hypersensitivity reactions Severe, life-threatening, generalized allergy, including anaphylaxis. Hypoglycemia Hypoglycemia is the most commonly observed adverse reaction in NOVOLIN N. Hypokalemia NOVOLIN N can cause a shift in potassium…
Who shouldn’t take insulin susp isophane recombinant human
NOVOLIN N is contraindicated: • During episodes of hypoglycemia [see Warnings and Precautions ( 5.3 )] • In patients who have hypersensitivity reactions to NOVOLIN N or any of its excipients [see Warnings and Precautions ( 5.5 )] • During episodes of hypoglycemia ( 4 ) • Hypersensitivity to NOVOLIN N or any of its excipients ( 4 )
Insulin Susp Isophane Recombinant Human drug interactions
Table 1: Clinically Significant Drug Interactions with NOVOLIN N Drugs that May Increase the Risk of Hypoglycemia Drugs: Antidiabetic agents, ACE inhibitors, angiotensin II receptor blocking agents, disopyramide, fibrates, fluoxetine, monoamine oxidase inhibitors, pentoxifylline, pramlintide, salicylates, somatostatin analog (e.g., octreotide), and sulfonamide antibiotics Intervention: Dose adjustment and increased frequency of glucose monitoring may be required when NOVOLIN N is co-administered with these drugs. Drugs that May Decrease the Blood Glucose Lowering Effect of NOVOLIN N Drugs: Atypical antipsychotics (e.g., olanzapine and clozapine), corticosteroids, danazol, diuretics, estrogens, glucagon, isoniazid, niacin, oral contraceptives, phenothiazines, progestogens (e.g., in oral contraceptives), protease inhibitors, somatropin, sympathomimetic agents (e.g., albuterol, epinephrine, terbutaline), and thyroid hormones. Intervention: Dose adjustment and increased frequency of glucose monitoring may be required when NOVOLIN N is co-administered with these drugs. Drugs that May Increase or Decrease the Blood Glucose Lowering Effect of NOVOLIN N Drugs: Alcohol, beta-blockers, clonidine, and lithium salts. Pentamidine may cause hypoglycemia, which may sometimes be followed by hyperglycemia. Intervention: Dose adjustment and increased frequency of glucose monitoring may be required when NOVOLIN N is co-administered with these drugs. Drugs that May Blunt Signs and Symptoms of Hypoglycemia Drugs: Beta-blockers, clonidine, guanethidine, and reserpine Intervention: Increased frequency of glucose monitoring may be required when NOVOLIN N is co-administered with these drugs. • Drugs that Affect Glucose Metabolism: Adjustment of insulin dosage may be needed. ( 7 ) • Antiadrenergic Drugs (e.g., beta-blockers, clonidine, guanethidine, and reserpine): Signs and symptoms of hypoglycemia may be reduced or absent. ( 5.3 , 7 )
Every insulin susp isophane recombinant human product we track (2)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
| # | Drug | Rating | Type | Form | Generic? | Pharmacy pays | |
|---|---|---|---|---|---|---|---|
| 1 | 70/100 | Over-the-counter | Injectable | No data | — | View → | |
| 2 | Not yet rated | Over-the-counter | Injectable | No data | — | View → |
Combination products containing insulin susp isophane recombinant human
A combination is a different drug — different dosing, different warnings. It is listed here so you can find it, not so you can substitute it.
What people report to the FDA about insulin susp isophane recombinant human
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 6 reports naming insulin susp isophane recombinant human, and the FDA flagged 100% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- hypoglycaemic coma2 reports
- arthralgia1 reports
- fall1 reports
- impaired healing1 reports
- muscular weakness1 reports
- sleep apnoea syndrome1 reports
- upper limb fracture1 reports
- vitreous haemorrhage1 reports
Read these as a signal, not a rate. A report does not mean insulin susp isophane recombinant human caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label section above.
Source: openFDA drug/event (FAERS), retrieved July 25, 2026.
Related calculators
Frequently asked questions
What is insulin susp isophane recombinant human?
Novolin N (Insulin Susp Isophane Recombinant Human) is a medication supplied as an injection, suspension.
Can you take insulin susp isophane recombinant human with other medicines?
It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run insulin susp isophane recombinant human against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
What brand names is insulin susp isophane recombinant human sold under?
We track 2 insulin susp isophane recombinant human-containing products in the U.S.: Novolin N and Humulin N. They are the same active ingredient; they differ in form, manufacturer, price and FDA recall record.
What forms does insulin susp isophane recombinant human come in?
Across the brands we track, insulin susp isophane recombinant human is currently marketed as injectable, per the FDA's National Drug Code Directory. Each form is dosed differently — follow the label for the exact product you were prescribed.
Is there a generic insulin susp isophane recombinant human?
We do not currently list a generic-labelled insulin susp isophane recombinant human product. That does not always mean none exists — it means none appears under a generic name in the FDA data we track. Ask your pharmacist.
Cite this page
- APA
- pharmaranks. (2026, July 24). Insulin Susp Isophane Recombinant Human: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/insulin-susp-isophane-recombinant-human
- MLA
- “Insulin Susp Isophane Recombinant Human: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/insulin-susp-isophane-recombinant-human.
We summarise public FDA and NIH sources — for a clinical claim, cite the primary source we link to as well.
Sources: FDA openFDA drug label, National Drug Code Directory, and Enforcement (recall) database. This page reproduces public FDA data and is not medical advice. Dosing is set by your prescriber.
Read the full FDA label for insulin susp isophane recombinant human on DailyMed (NIH) ↗.