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What the FDA labels say about taking them together

Fluoxetine and glimepiride

Glimepiride's FDA label of May 12, 2025 names fluoxetine in its drug interactions section; the fluoxetine label PlainMeds reads does not name glimepiride. The glimepiride label: “… disopyramide, quinolones, and those drugs that are highly protein-bound, such as fluoxetine, nonsteroidal anti-inflammatory drugs, salicylates, sulfonamides, chloramphenicol, coumarins, probenecid and monoamine oxidase …”

Check it at the source: the fluoxetine FDA label on DailyMed (effective January 8, 2026, Dista Products Company); the glimepiride FDA label on DailyMed (effective May 12, 2025, Micro Labs Limited).

What does the fluoxetine label say about glimepiride?

Fluoxetine's label (effective January 8, 2026) does not name glimepiride in these sections. A label lists what its studies and reports found; it is not a complete list.

Source: FDA drug label (Prozac), NDA018936 (Eli Lilly And Co), as published by Dista Products Company, effective January 8, 2026 (SPL set c88f33ed-6dfb-4c5e-bc01-d8e36dd97299), via openFDA; the full label on DailyMed

What does the glimepiride label say about fluoxetine?

Glimepiride label, drug interactions

The following are examples of medications that may increase the glucose-lowering effect of sulfonylureas including glimepiride, increasing the susceptibility to and/or intensity of hypoglycemia: oral anti-diabetic medications, pramlintide acetate, insulin, angiotensin converting enzyme (ACE) inhibitors, H 2 receptor antagonists, fibrates, propoxyphene, pentoxifylline, somatostatin analogs, anabolic steroids and androgens, cyclophosphamide, phenyramidol, guanethidine, fluconazole, sulfinpyrazone, tetracyclines, clarithromycin, disopyramide, quinolones, and those drugs that are highly protein-bound, such as fluoxetine, nonsteroidal anti-inflammatory drugs, salicylates, sulfonamides …

Source: FDA drug label (Glimepiride), Micro Labs Limited, effective May 12, 2025 (SPL set 60e9397e-83b9-489e-9683-6f87e458bbaa), via openFDA; the full label on DailyMed

These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.

Both medicines on the record

58Fluoxetine generic labelers
27Glimepiride generic labelers
FluoxetineGlimepiride
Labeled forDepression, Anxiety, Bipolar disorderType 2 diabetes
Boxed warningYesNo
Pharmacy cost (NADAC)$0.0519 per capsule 40 mg capsule$0.0507 per tablet 4 mg tablet
Shortage nowNo current entryNo current entry

Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)

What next?