Prescription medication · Rapid-Acting Insulin
insulin lispro
Also sold as Humalog. Admelog is used to improve blood sugar control in people with diabetes.
Data updated 2026-05-15
- 134,198
- FDA reportsHeavily reported
- 11
- InteractionsSeveral interactions
- 1
- Recall record
What the data shows
insulin lispro (Humalog) is a prescription Rapid-Acting Insulin, more reported than roughly 9 in 10 tracked drugs (134,198 FDA reports), with 11 documented drug interactions.
Reporting volume reflects how widely a drug is used and studied, not how dangerous it is, a FAERS report documents a temporal association, never proof of cause.
insulin lispro (Humalog) is a prescription Rapid-Acting Insulin. Admelog is used to improve blood sugar control in people with diabetes.
Admelog is a rapid-acting insulin that helps control blood sugar levels. It is used to treat diabetes in adults and children.
Verify with FDA → · CMS NADAC pricing →
Drug Pricing (NADAC)
Brand Price
$9.80/unit
Generic Price
$10.20/unit
Generic Available
Yes (0 manufacturers)
Pricing data from NADAC (CMS), effective December 18, 2024. Compare all drug costs →
What it does
Admelog is used to improve blood sugar control in people with diabetes.
Common side effects
Common cold, Upper respiratory infection
Key warnings
Never share your Admelog SoloStar pen or syringe with anyone else, even if you change the needle.
The sections below are summarized in plain English from insulin lispro's FDA-approved prescribing information. They describe what the official label says, and are not personal medical advice.
How It Works
Admelog is a man-made insulin that works like the insulin your body should be making. It helps sugar move from your blood into your cells. This lowers your blood sugar levels.
How to Take It
Admelog is injected under the skin within 15 minutes before or right after you eat a meal. You can inject it into your belly area, thigh, upper arm, or buttocks. Change your injection spot each time to avoid skin problems. Your doctor will tell you how much Admelog to use based on your needs.
This is a plain-language summary of insulin lispro's FDA labeling, not individualized dosing advice. Ask a pharmacist or prescriber before changing how you take this medication.
Pregnancy & Breastfeeding
Talk to your doctor if you are pregnant or plan to become pregnant. Poorly controlled diabetes during pregnancy can harm both the mother and the baby. Discuss the risks and benefits of using Admelog with your doctor if you are breastfeeding.
This is a plain-language summary of insulin lispro's FDA labeling, not individualized advice. Ask a pharmacist or prescriber about pregnancy or breastfeeding on this medication.
Missed Dose
If you miss a dose, check your blood sugar and take your next dose as usual with your next meal. Do not take a double dose to make up for the missed one.
This is a plain-language summary of insulin lispro's FDA labeling, not individualized advice. Ask a pharmacist or prescriber what to do about your specific missed dose.
Storage
Keep unopened Admelog in the refrigerator or at room temperature for up to 28 days. Once opened, keep at room temperature and throw away after 28 days, even if there is medicine left.
Side Effects (from patient reports)
Based on 134,198 FDA adverse event reports.
Most-reported reactions
Adverse reactions in FAERS for insulin lispro, by number of reports
- High blood sugar
High blood sugar
38,181 reports
- Wrong dose given 9,067
Wrong dose given
9,067 reports
- Low blood sugar 8,760
Low blood sugar
8,760 reports
- Vision problems 5,392
Vision problems
5,392 reports
- Feeling sick to your stomach 4,787
Feeling sick to your stomach
4,787 reports
- Feeling unwell 3,948
Feeling unwell
3,948 reports
- Low blood sugar 3,799
Low blood sugar
3,799 reports
- Tiredness 3,754
Tiredness
3,754 reports
- Skipped medicine dose 3,751
Skipped medicine dose
3,751 reports
- Falling down 3,428
Falling down
3,428 reports
What this shows Bars show how often each reaction was reported, not how likely it is to happen, a report records a temporal association, never proof that the drug caused it.
Reports over time
Adverse-event reports filed for insulin lispro each year to the FDA Adverse Event Reporting System (FAERS).
Year-to-year volume tracks usage, prescribing, and scrutiny, not a change in per-patient risk. Source: FDA FAERS.
Where insulin lispro sits
insulin lispro has more FDA adverse-event reports than 91% of the drugs FAERS tracks. A high position reflects how widely a drug is used and watched, not how dangerous it is.
Percentile across all drugs PlainMeds tracks by FAERS report volume. The dot is insulin lispro; the line is the median (50th percentile).
FDA Adverse Event Report Analysis
Detailed analysis of 134,198 reports from the FDA Adverse Event Reporting System (FAERS). Reports span 2004–2025.
Total Reports
134,198
Reports Mentioning Death
5,906
4.4% of reports — not proof of cause
Hospitalization Reports
33,389
Top Indication
Product Used For Unknown Indication
Gender Distribution
Age Distribution
Most Reported Adverse Reactions (FAERS)
| # | Reaction | Reports |
|---|---|---|
| 1 | BLOOD GLUCOSE INCREASED | 38,180 |
| 2 | INCORRECT DOSE ADMINISTERED | 9,067 |
| 3 | BLOOD GLUCOSE DECREASED | 8,761 |
| 5 | VISUAL IMPAIRMENT | 5,392 |
| 6 | NAUSEA | 4,787 |
| 7 | MALAISE | 3,946 |
| 8 | HYPOGLYCAEMIA | 3,800 |
| 9 | FATIGUE | 3,754 |
| 10 | DRUG DOSE OMISSION | 3,751 |
| 11 | FALL | 3,428 |
| 12 | UNDERDOSE | 3,374 |
| 13 | DIARRHOEA | 3,156 |
| 14 | GLYCOSYLATED HAEMOGLOBIN INCREASED | 3,144 |
| 15 | VOMITING | 3,121 |
| 16 | PAIN | 3,088 |
Reactions in Death Reports
Reactions in Hospitalization Reports
Source: FDA FAERS (Adverse Event Reporting System) FDA FAERS (Adverse Event Reporting System) Reports are voluntary and do not establish causation
Serious Warnings
Never share your Admelog SoloStar pen or syringe with anyone else, even if you change the needle. Sharing can spread blood-borne diseases. Changes in your insulin plan can cause high or low blood sugar. Make these changes carefully with your doctor's help. Low blood sugar can be life-threatening. Watch your blood sugar closely.
Known Drug Interactions
Table 2: Clinically Significant Drug Interactions with ADMELOG 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 analogs (e.g., octreotide), and sulfonamide antibiotics. Drugs that may increase the risk of hypoglycemia: antidiabetic agents, ACE inhibitors, angiotensin II receptor blocking agents, disopyramide, fibrates, fluoxetine, monoamine oxidase inhibitors, pentoxifylline,...
Mechanism: Fluoxetine can increase the blood-sugar-lowering effect of insulin, which raises the risk of your blood sugar dropping too low.
What to do: Monitor your blood sugar levels closely and talk to your doctor about adjusting your insulin dose.
Table 2: Clinically Significant Drug Interactions with ADMELOG 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 analogs (e.g., octreotide), and sulfonamide antibiotics. Drugs that may increase the risk of hypoglycemia: antidiabetic agents, ACE inhibitors, angiotensin II receptor blocking agents, disopyramide, fibrates, fluoxetine, monoamine oxidase inhibitors, pentoxifylline,...
Mechanism: Both of these medicines lower blood sugar, so taking them together increases the chance of having dangerously low blood sugar.
What to do: You should check your blood sugar more frequently and your doctor may need to adjust your insulin dosage.
Table 2: Clinically Significant Drug Interactions with ADMELOG 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 analogs (e.g., octreotide), and sulfonamide antibiotics. Drugs that may increase the risk of hypoglycemia: antidiabetic agents, ACE inhibitors, angiotensin II receptor blocking agents, disopyramide, fibrates, fluoxetine, monoamine oxidase inhibitors, pentoxifylline,...
Mechanism: Octreotide can make insulin work more strongly or lower blood sugar on its own, which increases the risk of hypoglycemia.
What to do: Watch for signs of low blood sugar and consult your doctor about potential changes to your insulin dose.
Drugs That May Decrease the Blood Glucose Lowering Effect of ADMELOG 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. Drugs that may decrease the blood glucose lowering effect: atypical antipsychotics, corticosteroids, danazol, diuretics, estrogens, glucagon, isoniazid, niacin, oral...
Mechanism: Albuterol can make insulin less effective at lowering your blood sugar levels.
What to do: Check your blood sugar levels often and consult your doctor about adjusting your insulin dose.
Drugs That May Increase or Decrease the Blood Glucose Lowering Effect of ADMELOG Drugs: Alcohol, beta-blockers, clonidine, and lithium salts. Drugs That May Blunt Signs and Symptoms of Hypoglycemia Drugs: Beta-blockers, clonidine, guanethidine and reserpine. Drugs that may increase or decrease the blood glucose lowering effect: alcohol, beta-blockers, clonidine, lithium salts, and pentamidine ( 7 ).
Mechanism: Clonidine can change how insulin affects your blood sugar and may hide the physical signs of low blood sugar.
What to do: Monitor your blood sugar levels closely and be aware that you might not notice typical symptoms of low blood sugar.
This is a plain-language summary of interactions documented in FDA labeling, not individualized advice. Ask a pharmacist or prescriber before combining medications.
Common Questions
What should I do if my insulin pump malfunctions?
Can I mix Admelog with other insulins?
How often should I change the Admelog in my insulin pump?
What if I see particles or color in my Admelog?
Can changes to my insulin plan affect my blood sugar?
What should I do if I keep injecting into the same spot?
How often should I check my blood sugar?
What happens if I take too much Admelog?
What happens if I don't take enough Admelog?
Can other medicines affect Admelog?
What are the common side effects of insulin lispro?
Does insulin lispro interact with other medications?
What drug class is insulin lispro?
Is insulin lispro safe during pregnancy?
Has insulin lispro been recalled?
Active Recalls
Lack of Assurance of Sterility: Malformed crimped collar seal
Sanofi-Aventis U.S. LLC
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Medication Guides
Understanding Drug Interactions
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FDA requirements, cost savings, and when the difference matters
Narrow Therapeutic Index Drugs
Why some drugs demand precise dosing and monitoring
Common Drug Interactions
Dangerous medication combinations and how to protect yourself
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What the FDA Data Shows for insulin lispro
The FDA label for insulin lispro (sold under brand names such as Humalog) classifies it as a prescription-only medication in the Rapid-Acting Insulin class. Admelog is used to improve blood sugar control in people with diabetes. Official labeling lists 2 commonly reported side effects, including Common cold, Upper respiratory infection.
Post-market surveillance from the FDA Adverse Event Reporting System (FAERS) captures real-world experience. For this drug, FAERS contains 134,198 voluntary reports. The database also lists 11 documented drug interactions derived from FDA labeling, with the top-flagged interaction rated moderate severity. NADAC pricing from CMS shows a generic unit cost of $10.20 versus $9.80 for the brand.
Report counts do not establish causation, a FAERS entry documents a temporal association, not proof that the drug produced the outcome. Widely prescribed medications naturally accumulate more reports than niche therapies, so raw totals must be interpreted alongside total exposure. Shortage status, recall history (currently 1 recall record on file), and patent information further shape supply and switching decisions. This page summarizes public FDA data for educational purposes only and is not a substitute for professional medical advice, always consult a licensed healthcare provider before starting, stopping, or changing any medication.
Data Sources
Drug labeling: FDA Drug Labels (SPL/DailyMed). Adverse events: FDA Adverse Event Reporting System (FAERS). Pricing: CMS National Average Drug Acquisition Cost (NADAC).
FAERS reports are voluntary and do not establish causation. Drug interactions are derived from FDA labeling and clinical references. Always consult a healthcare professional before making medication decisions.
Last updated: June 4, 2025
Read our methodology - how this data is sourced, computed, and verified.
Data currency: FDA FAERS adverse-event reports through 2025, CMS NADAC acquisition-cost pricing effective December 2024, compiled and last refreshed May 2026. See our methodology for per-source dates and refresh cadence. Spot a figure that looks wrong? Report a correction.
All federal data sources used on this page
- FDA Orange Book - approved drug products with therapeutic equivalence. accessdata.fda.gov/cder/ob
- FDA DailyMed - NIH-hosted drug labeling for FDA-approved meds. dailymed.nlm.nih.gov
- FDA Adverse Event Reporting System (FAERS) - post-marketing safety surveillance. fda.gov/drugs/faers
- NLM RxNorm - standardized clinical drug nomenclature. nlm.nih.gov/research/umls/rxnorm
- CMS Medicare Part B Drug Average Sales Price Files - federal drug pricing data. cms.gov/medicare/part-b-drugs/asp
- FDA Drug Shortages Database - current and resolved drug shortage tracking. accessdata.fda.gov/drugshortages