Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Atenolol is dosed at 0.5–1 mg/kg PO q12h in dogs, per Nishimura S, Visser LC, Belanger C, Oldach MS, Gunther-Harrington CT, Stern JA. Echocardiographic evaluation of velocity ratio, velocity time integral ratio, and pulmonary valve area in dogs withttpulmonary valve stenosis. J Vet Intern Med. 2018;32(5):1570-1578. doi:10.1111/jvim.15244; Meurs KM, Lehmkuhl LB, Bonagura JD. Survival times in dogs with severe subvalvular aortic stenosis treated with balloon valvuloplasty or atenolol. J Am Vet Med Assoc. 2005;227(3):420-424. doi:10.2460/javma.2005.227.420 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.132 (2026-08-01).. Atenolol is used in dogs for Subaortic stenosis rate control, Supraventricular arrhythmias, hypertension. Routes documented in dogs: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 2 cited dose rules for Atenolol in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Tenormin
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 0.5–1 mg/kg | q12h | Chronic | Subaortic stenosis rate control | Moderate | Nishimura S, Visser LC, Belanger C, Oldach MS, Gunther-Harrington CT, Stern JA. Echocardiographic evaluation of velocity ratio, velocity time integral ratio, and pulmonary valve area in dogs withttpulmonary valve stenosis. J Vet Intern Med. 2018;32(5):1570-1578. doi:10.1111/jvim.15244; Meurs KM, Lehmkuhl LB, Bonagura JD. Survival times in dogs with severe subvalvular aortic stenosis treated with balloon valvuloplasty or atenolol. J Am Vet Med Assoc. 2005;227(3):420-424. doi:10.2460/javma.2005.227.420 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.132 (2026-08-01). |
| PO | 0.25–1 mg/kg | q12-24h | Chronic | Supraventricular arrhythmias, hypertension | Strong | Meurs KM, Lehmkuhl LB, Bonagura JD. Survival times in dogs with severe subvalvular aortic stenosis treated with balloon valvuloplasty or atenolol. J Am Vet Med Assoc. 2005;227(3):420-424. doi:10.2460/javma.2005.227.420 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.132 (2026-08-01). |
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These ranges are per kg. Enter your dog's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Selective beta-1 adrenergic receptor blocker. Reduces heart rate, contractility, and myocardial oxygen demand.
Do not discontinue abruptly (rebound tachycardia). Avoid in decompensated heart failure, severe bradycardia, or AV block. May mask hypoglycemia signs.
Species-specific contraindications and adverse-reaction reports for dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Atenolol dose ranges in dogs, with cited source references: PO 0.5–1 mg/kg q12h; PO 0.25–1 mg/kg q12-24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Atenolol in dogs: PO.
Cited course lengths for Atenolol in dogs include: Chronic. Duration depends on the indication — match it to the specific dose rule in the table above.
Atenolol is indicated in dogs for: Subaortic stenosis rate control, Supraventricular arrhythmias, hypertension.
These are general warnings for Atenolol across species; consult the dog dosing table above for species-specific guidance. Do not discontinue abruptly (rebound tachycardia). Avoid in decompensated heart failure, severe bradycardia, or AV block. May mask hypoglycemia signs.
Why a species-specific page? Atenolol pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in dogs — the rules above are the citations specific to this species, not generic recommendations.
Sourced from published veterinary references; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice.