Also listed in trial records as Metaoxedrin, NeoSynephrine
Source: ClinicalTrials.gov, U.S. National Library of Medicine — the 12 trials in our Canada, China, South Korea, Japan, Denmark, Singapore and Egypt registers that name Phenylephrine as an intervention.Synced 26 Sep 2026
MSc Digital Transformation of Life Sciences (Innopharma Education / Griffith College); MSc & BSc Botany HSE Spark Ignite 2026 โ Top 14 finalist
Compiled from ClinicalTrials.gov registry records ยท Last verified ยท Editorial standards
At a glance
Phenylephrine is named as an intervention in 12 current clinical trials
in our Canada, China, South Korea, Japan, Denmark, Singapore and Egypt registers.
9 are recruiting patients now. The most common phase is Not applicable. The sponsor with the most trials is Samuel Lunenfeld Research Institute, Mount Sinai Hospital (2). The most-studied condition is Hypotension.
Registers list studies that are recruiting, about to open, active but closed to enrolment, or enrolling by invitation. The UK and USA registers cover industry-sponsored studies only. Trial titles and statuses are copied from the registry as published.
02
Phenylephrine across our data
Ireland · EU · US
The same active substance in our other registers, matched by its exact name. Each entry links to the register record it comes from.
Licensed in Ireland (HPRA)
4 single-substance products containing Phenylephrine on the HPRA medicines list.
Hypotension3Anesthesia2Acute Ischemic Stroke2Tumor1Stroke1Blood Pressure1Surgery With General Anesthesia1Noncardiac Surgery1Hypotension During Surgery1Blood Loss, Surgical1Postpartum Hemorrhage1Postural Tachycardia Syndrome1
How many clinical trials are testing Phenylephrine?
12 current trials in our Canada, China, South Korea, Japan, Denmark, Singapore and Egypt registers name Phenylephrine as a drug or biological intervention, as of the registry sync on 26 September 2026. Completed and withdrawn studies are not counted.
Are Phenylephrine trials recruiting patients?
Yes. 9 of the 12 trials are recruiting: 5 with sites in Canada, 1 with sites in China, 1 with sites in South Korea, 1 with sites in Denmark and 1 with sites in Egypt. Eligibility and site contacts are on each trial's record. Only the study team can confirm whether a patient is eligible.
Who sponsors Phenylephrine clinical trials?
Samuel Lunenfeld Research Institute, Mount Sinai Hospital (2), Yonsei University (2), Zhejiang Cancer Hospital (1) and The University of Texas Health Science Center, Houston (1), among 10 lead sponsors in total. The number in brackets is how many trials each organisation leads.
Is Phenylephrine licensed in Ireland?
Yes. The HPRA medicines list includes 4 single-substance products containing Phenylephrine, for example Minims Phenylephrine Hydrochloride 2.5% w/v eye drops, solution (Bausch + Lomb Ireland Limited). A licence does not mean a product is currently marketed or reimbursed; see each product's record.
Is there a Phenylephrine shortage?
The registers we track list 3 entries for Phenylephrine: 3 German notices. Shortages are product- and country-specific; check with a pharmacist.
Where does this information come from?
Every trial, status, phase and sponsor on this page is copied from public ClinicalTrials.gov records by a daily sync. Nothing here describes how Phenylephrine works or whether it is effective, and it is not medical advice.
How this page is built
Everything on this page is copied from public ClinicalTrials.gov registry records โ it is not written from memory, and nothing here describes how Phenylephrine works or whether it is effective. Each trial links to its own record so you can check it yourself.
This page is built automatically: a daily sync job reads the registry records behind our country trial registers, collects every trial that lists Phenylephrine (or a registered synonym) as a drug or biological intervention, and tabulates the registry fields directly. Placebos and generic comparators are excluded. There is no AI drafting and no per-compound editorial pass, and the page has not been clinically reviewed. The “last verified” date above is the timestamp of that sync, not a review date. Our general editorial approach is described in our editorial standards and corrections policy. The ClinicalTrials.gov data on this page was last retrieved on 26 Sep 2026.
Please verify before you rely on this.
This page is general information for life-science and pharmaceutical professionals. It is
not medical advice, and it has not been reviewed by a clinician โ our editorial
team holds life-science qualifications, not clinical ones. It is not exhaustive and may not reflect the most
recent label change. Always check the official prescribing information (US Prescribing Information or EU SmPC)
and speak to your doctor or pharmacist before acting on anything here. Drugs in the same class are not
automatically interchangeable, and approvals, brand names and indications differ between the US, the
EU/Ireland (EMA/HPRA) and other regions.
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