What the FDA labels say about taking them together
Atenolol and tamsulosin
Tamsulosin's FDA label of December 1, 2025 names atenolol in its drug interactions section; the atenolol label PlainMeds reads does not name tamsulosin. The tamsulosin label: “Dosage adjustments are not necessary when tamsulosin hydrochloride capsules are administered concomitantly with nifedipine, atenolol, or enalapril.”
Check it at the source: the atenolol FDA label on DailyMed (effective September 18, 2025, Upsher-Smith Laboratories, LLC); the tamsulosin FDA label on DailyMed (effective December 1, 2025, Synthon Pharmaceuticals, Inc.).
What does the atenolol label say about tamsulosin?
Atenolol's label (effective September 18, 2025) does not name tamsulosin in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (TENORMIN), NDA018240 (Twi Pharms), as published by Upsher-Smith Laboratories, LLC, effective September 18, 2025 (SPL set 6e850b1e-28a4-4ff8-8ed7-bb0b29faa28a), via openFDA; the full label on DailyMed
What does the tamsulosin label say about atenolol?
Tamsulosin label, drug interactionsDosage adjustments are not necessary when tamsulosin hydrochloride capsules are administered concomitantly with nifedipine, atenolol, or enalapril [see Clinical Pharmacology (12.3) ].
Source: FDA drug label (Tamsulosin hydrochloride), Synthon Pharmaceuticals, Inc., effective December 1, 2025 (SPL set 13a5032d-0be1-4001-916e-459f0b1a051d), 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
| Atenolol | Tamsulosin | |
|---|---|---|
| Labeled for | High blood pressure, Angina, Heart attack and coronary artery disease | Enlarged prostate (BPH) |
| Boxed warning | No | No |
| Pharmacy cost (NADAC) | $0.0217 per tablet 25 mg tablet | $0.05 per capsule 0.4 mg capsule |
| Shortage now | No current entry | No 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?
- Check more medicines together
- up to five at once