Liraglutide and Atenolol: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 15, 2026 · Source data updated Jul 11, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Atenolol
Liraglutide
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
You're taking atenolol (a beta-blocker for blood pressure or heart) along with liraglutide (Victoza or Saxenda) to help manage blood sugar. Here's the key point: liraglutide can lower your blood sugar, and atenolol may hide some of the usual warning signs of a low, especially a fast or pounding heartbeat.
The good news is that other warning signs, like sweating and feeling shaky or dizzy, usually still come through. Beta-blockers can also nudge your blood sugar up or down a little. This is very manageable. Your care team may simply check your sugar a bit more often or fine-tune your doses. Let them know if you notice any unusual lows.
Effect: Beta-blockade combined with an antidiabetic (GLP-1 agonist) may alter glycemic control (hypo- or hyperglycemia) and can blunt adrenergic warning signs of hypoglycemia.
- Direction/mechanism: Altered glucose metabolism plus beta-blockade. Atenolol is beta-1 selective, so masking of hypoglycemia is less pronounced than with nonselective agents; tachycardia may be suppressed, while sweating and dizziness typically persist.
- Onset: Delayed. Evidence: Probable. Severity: Moderate.
- Management: Increase glucose monitoring frequency; individualize antidiabetic dosing. If atenolol is discontinued, watch for loss of glycemic control.
What happens
Hypoglycemia or hyperglycemia; decreased symptoms of hypoglycemia
Interaction Deep Dive
Using antidiabetic medications together with beta-blockers can produce either hypoglycemia or hyperglycemia and may mask the warning signs of low blood sugar23. While tachycardia can be blunted, other hypoglycemic manifestations such as dizziness and sweating are not necessarily affected1. Beta-blockers that are nonselective may amplify hypoglycemia triggered by insulin and hinder the return of serum glucose to normal levels. In individuals who have both heart failure and diabetes, hyperglycemia may deteriorate7. It may be necessary to monitor glucose more often or to modify the dose of the antidiabetic drug23. During combined therapy, watch carefully for indications of hypoglycemia, and should the beta-blocker be discontinued, remain alert for a loss of glycemic control4.
Why it happens (mechanism)
Altered glucose metabolism and beta blockade
How to manage this interaction
Keep taking both medications exactly as prescribed. This combination is commonly used and is manageable with routine attention.
- Your care team may check your blood sugar more often to catch highs or lows early.
- The dose of your diabetes medication may need to be adjusted and individualized by your team.
- Learn the low-blood-sugar signs that atenolol does not hide, such as sweating, shakiness, and dizziness, since a fast heartbeat may be blunted.
- Tell your pharmacist or prescriber if your atenolol is ever stopped, as your blood sugar may change and need rechecking.
Management is individual — confirm any change with your pharmacist or prescriber.
Literature reports
2 reports — tap to read
a) In elderly diabetic patients receiving either insulin or sulfonylureas, the selection of antihypertensive agent had minimal impact on hypoglycemia risk; however, once other risk factors were accounted for, the lowest risk occurred with cardioselective beta blockers and the highest with non-cardioselective beta blockers, while other antihypertensive medications fell in between (N=13,559) 5.
b) In patients with hypertension and non-insulin dependent diabetes, beta blockers, but not alpha blockade or ACE inhibitors, produced a worsening of long-term glycemic control. Some unfavorable changes in the lipid profile were also seen with beta blockade. These effects were particularly pronounced with propranolol. Using an alpha blocker together with the beta blocker prevented the worsening caused by beta blockade 6.
Common questions
Can I take Liraglutide and Atenolol together?
Atenolol may hide the racing-heartbeat warning of a low blood sugar caused by liraglutide, though sweating and shakiness usually still show. Your team can manage this with closer glucose monitoring and dose tailoring. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Liraglutide and Atenolol interaction?
It is rated moderate. Can be significant — usually manageable with monitoring.
How quickly could this interaction happen?
The documented onset is "delayed". Effects tend to build up gradually over days to weeks.
How is the Liraglutide and Atenolol interaction managed?
Keep taking both medications exactly as prescribed. This combination is commonly used and is manageable with routine attention. Your care team may check your blood sugar more often to catch highs or lows early. The dose of your diabetes medication may need to be adjusted and individualized by your team. Learn the low-blood-sugar signs that atenolol does not hide, such as sweating, shakiness, and d… Management is individual — always follow your own care team's guidance.
How strong is the evidence for this interaction?
The evidence is graded "probable". Good supporting evidence, though not definitively proven.
From our Q&A
Real reader questions about these medications, each personally answered by our pharmacist:
Questions for your pharmacist
- Does my dose of Liraglutide or Atenolol need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there anything you'd monitor while I'm on both?
References (7)
- Product Information: TENORMIN(R) oral tablets, atenolol oral tablets. AstraZeneca Pharmaceuticals LP (per FDA), Wilmington, DE, 2012. DailyMed
- Product Information: TOUJEO(R) subcutaneous injection, insulin glargine subcutaneous injection. sanofi-aventis (per manufacturer), Bridgewater, NJ, 2015. DailyMed
- Product Information: AMARYL(R) oral tablets, glimepiride oral tablets. Sanofi-Aventis U.S. LLC (per FDA), Bridgewater, NJ, 2013. DailyMed
- Product Information: Glynase(R) PresTab(R) oral micronized tablets, glyburide oral micronized tablets. Pharmacia & Upjohn Co (per FDA), New York, NY, 2013. DailyMed
- Shorr RI, Ray WA, Daugherty JR, et al: Antihypertensives and the risk of serious hypoglycemia in older persons using insulin or sulfonylureas. JAMA 1997; 278:40-43. DOI
- Whitcroft IA, Thomas JM, Rawsthorne A, et al: Effects of alpha and beta adrenoceptor blocking drugs and ACE inhibitors on long term glucose and lipid control in hypertensive non-insulin dependent diabetics. Horm Metab Res Suppl 1990; 22:42-46.
- Product Information: COREG CR(R) extended-release oral capsules, carvedilol phosphate extended-release oral capsules. GlaxoSmithKline, Research Triangle Park, NC, 2011. DailyMed
Keep reading about Atenolol
Keep reading about Liraglutide
These medications also interact with supplements
Prescription drugs aren't the whole picture — herbal and dietary supplements can interact with them too. From the evidence-graded Natural Medicines database:
major · moderate · minor — check everything you take with our drug–supplement interaction checker.
Check another combination
Our instant two-drug interaction checker is almost here.
Still have questions about this combination?
Every question gets a real answer from a licensed pharmacist — free, and usually within a day.
Ask the pharmacist