Insulin interactions
Overview
Insulin (Lantus, Humalog, Novolog) is an injected hormone that lowers blood sugar. In our database it has 8 known interactions with common medicines and substances: 0 serious, 8 that need caution and 0 minor.
Use caution 8 interactions
Low blood sugar and other risksEmpagliflozin
Higher risk of low blood sugarFluconazole
Raises levels of the other medicineMethylprednisolone
Steroids raise blood sugarPrednisone
Steroids raise blood sugarSemaglutide
Higher risk of low blood sugarSulfamethoxazole-trimethoprim
Low blood sugar riskTirzepatide
Higher risk of low blood sugar
No known interaction found
Our rules found no interaction between Insulin and: Acetaminophen, Acyclovir, Albuterol, Allopurinol, Alprazolam, Amitriptyline, Amlodipine, Amoxicillin, Amoxicillin-clavulanate, Amphetamine salts, Apixaban, Aripiprazole, Ashwagandha, Aspirin, Atenolol, Atorvastatin, Azithromycin, Baclofen, Birth control pills, Bismuth subsalicylate, Buprenorphine-naloxone, Bupropion, Buspirone, Caffeine, Calcium carbonate, Cannabis, Carvedilol, Celecoxib, Cephalexin, Cetirizine, Ciprofloxacin, Citalopram, Clindamycin, Clonazepam, Clonidine, Clopidogrel, Codeine, Colchicine, Creatine, Cyclobenzaprine, DayQuil, Dextromethorphan, Diazepam, Diclofenac, Digoxin, Diphenhydramine, Doxycycline, Doxylamine, Duloxetine, Escitalopram, Esomeprazole, Estradiol, Excedrin, Famotidine, Fexofenadine, Finasteride, Fish oil, Fluoxetine, Furosemide, Gabapentin, Glipizide, Grapefruit juice, Guaifenesin, Hydrochlorothiazide, Hydrocodone, Hydroxychloroquine, Hydroxyzine, Ibuprofen, Iron supplements, Isotretinoin, Kratom, Lamotrigine, Levetiracetam, Levofloxacin, Levothyroxine, Lisdexamfetamine, Lisinopril, Lithium, Loperamide, Loratadine, Lorazepam, Losartan, Magnesium, Meclizine, Melatonin, Meloxicam, Metformin, Methocarbamol, Methotrexate, Methylphenidate, Metoprolol, Metronidazole, Mirtazapine, Montelukast, Morphine, Naltrexone, Naproxen, Nicotine, Nitrofurantoin, NyQuil, Omeprazole, Ondansetron, Oseltamivir, Oxycodone, Pantoprazole, Paroxetine, Paxlovid, Phentermine, Phenylephrine, Potassium supplements, Pravastatin, Pregabalin, Probiotics, Promethazine, Propranolol, Pseudoephedrine, Quetiapine, Rivaroxaban, Rosuvastatin, Sertraline, Sildenafil, Simvastatin, Spironolactone, St. John's wort, Sumatriptan, Tadalafil, Tamsulosin, Tizanidine, Topiramate, Tramadol, Trazodone, Turmeric, Valacyclovir, Venlafaxine, Vitamin D, Warfarin, Zinc, Zolpidem.
Add at least two medicines, supplements or alcohol.
Sources
Source: FDA label for Insulin on DailyMed (effective 2026-06), plus the labels of each interacting medicine.
This list covers the 147 medicines and substances in our database. It is not a complete list of every possible interaction. Always tell your doctor and pharmacist about every medicine, supplement and herbal product you take.