What the FDA labels say about taking them together
Propranolol and terazosin
Propranolol's FDA label of January 15, 2026 names terazosin in its drug interactions section, and terazosin's label names propranolol too. The propranolol label: “Postural hypotension has been reported in patients taking both beta-blockers and terazosin or doxazosin.”
Check it at the source: the propranolol FDA label on DailyMed (effective January 15, 2026, Mylan Pharmaceuticals Inc.); the terazosin FDA label on DailyMed (effective May 5, 2026, Jubilant Cadista Pharmaceuticals Inc.).
What does the propranolol label say about terazosin?
Propranolol label, drug interactionsPostural hypotension has been reported in patients taking both beta-blockers and terazosin or doxazosin.
Source: FDA drug label (Propranolol Hydrochloride), Mylan Pharmaceuticals Inc., effective January 15, 2026 (SPL set b94dcec7-7633-4a33-9cea-48161adeaf93), via openFDA; the full label on DailyMed
What does the terazosin label say about propranolol?
Terazosin label, drug interactionsTerazosin has been used concomitantly in at least 50 patients on the following drugs or drug classes: analgesic/anti-inflammatory (e.g., acetaminophen, aspirin, codeine, ibuprofen, indomethacin); antibiotics (e.g., erythromycin, trimethoprim and sulfamethoxazole); anticholinergic/sympathomimetics (e.g., phenylephrine hydrochloride, phenylpropanolamine hydrochloride, pseudoephedrine hydrochloride); antigout (e.g., allopurinol); antihistamines (e.g., chlorpheniramine); cardiovascular agents (e.g., atenolol, hydrochlorothiazide, methyclothiazide, propranolol); corticosteroids; gastrointestinal agents (e.g., antacids); hypoglycemics; sedatives and tranquilizers (e.g., diazepam).
Source: FDA drug label (Terazosin), Jubilant Cadista Pharmaceuticals Inc., effective May 5, 2026 (SPL set 43e92495-2cf2-46dd-a80c-f0c3c88c7b73), 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
| Propranolol | Terazosin | |
|---|---|---|
| Labeled for | High blood pressure, Angina, Atrial fibrillation, Migraine | Enlarged prostate (BPH), High blood pressure |
| Boxed warning | No | No |
| Pharmacy cost (NADAC) | $0.0493 per tablet 20 mg tablet | $0.106 per capsule 2 mg capsule |
| Shortage now | In shortage | 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