FDA label 2b4f097e-fd61-43cb-b6ed-01fbf2868cf7

openFDA label record#

This page contains supplementary openFDA label data. For the canonical label presentation, use the corresponding DailyMed Structured Product Label.

Verified complete openFDA source JSON (canonical bytes are SHA-256 checked before publication)

SPL set ID: 1daacf09-355c-4e22-88b0-dcd1e18f13d2
SPL ID: 2b4f097e-fd61-43cb-b6ed-01fbf2868cf7
Version: 5
Effective date: 2020-12-07
Source export date: 2026-09-28
Source partition: 8
Source file: https://download.open.fda.gov/drug/label/drug-label-0008-of-0014.json.zip
Source object key: raw/openfda/drug-label/2026-09-28/ae3816359e336a5de4f44607730a3d12ceb61ffa012a132189ceda22541b38ee/drug-label-0008-of-0014.json.zip
Source manifest SHA-256: cd2e66336a5cd2223fa3995098fdbdb84c6a7ee5c0a4addb236ccb22dd1e6887
Import run: 20260929T050834Z
Imported at: 2026-09-29 05:52:05

Harmonized identifier links#

Every typed identifier imported from the complete openFDA harmonization object is paginated here; values are not reduced to a first match.

Harmonized identifiers page 1 of 1 · 2 matching rows.

Type, Scope, Identifier table
Type	Scope	Identifier	Source field
spl id		2b4f097e-fd61-43cb-b6ed-01fbf2868cf7	id
spl set id		1daacf09-355c-4e22-88b0-dcd1e18f13d2	set_id

Warnings cross-check#

openFDA text is shown for search and cross-checking; DailyMed SPL is canonical.

Warnings sections page 1 of 1 · 1 matching rows.

warnings

WARNING Phenoxybenzamine hydrochloride-induced alpha -adrenergic blockade leaves beta -adrenergic receptors unopposed. Compounds that stimulate both types of receptors may, therefore, produce an exaggerated hypotensive response and tachycardia.

Adverse reactions cross-check#

openFDA text is shown for search and cross-checking; DailyMed SPL is canonical.

Adverse reactions sections page 1 of 1 · 1 matching rows.

adverse reactions

ADVERSE REACTIONS The following adverse reactions have been observed, but there are insufficient data to support an estimate of their frequency. Autonomic Nervous System*: Postural hypotension, tachycardia, inhibition of ejaculation, nasal congestion, miosis. *These so-called “side effects” are actually evidence of adrenergic blockade and vary according to the degree of blockade. Miscellaneous: Gastrointestinal irritation, drowsiness, fatigue. To report SUSPECTED ADVERSE REACTIONS, contact Amneal Pharmaceuticals at 1-877-835-5472 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Reported adverse events (FAERS/openFDA)#

Adverse event summaries are temporarily unavailable. Other product information remains available.