Substance / Medication

Methoxsalen

Overview

Active Ingredient
methoxsalen
RxNorm CUI
6854

Indications

Photochemotherapy (Methoxsalen with long wave UVA radiation) is indicated for the symptomatic control of severe, recalcitrant, disabling psoriasis not adequately responsive to other forms of therapy and when the diagnosis has been supported by biopsy. Methoxsalen is intended to be administered only in conjunction with a schedule of controlled doses of long wave ultraviolet radiation.

Labeler: Strides Pharma Science LimitedUpdated: 2025-03-11T00:00:00.000ZFull label on DailyMed

Boxed Warning

FDA Black Box Warning

CAUTION: Methoxsalen Capsules, USP 10 mg [Soft Gelatin Capsules]. This new dosage form of methoxsalen exhibits significantly greater bioavailability and earlier photosensitization onset time than previous methoxsalen dosage forms. Patient should be treated in accordance with the dosimetry specifical

Contraindications

When this intervention should not be used

A. Patients exhibiting idiosyncratic reactions to psoralen compounds. B. Patients possessing a specific history of light sensitive disease states should not initiate methoxsalen therapy except under special circumstances. Diseases associated with photosensitivity include lupus erythematosus, porphyr

Indications & Related Conditions

Conditions associated via SNOMED clinical relationships

Administration & Protocol

Dosing, route, and treatment protocol

Detailed dosage and administration information is available in the full FDA drug label.

View full prescribing information on DailyMed

Monitoring & Follow-Up

Biomarkers relevant to this intervention via related conditions

No monitoring biomarkers have been mapped yet. Biomarker-intervention linkages are derived through related conditions and will expand as the knowledge graph grows.

Clinical Trials

166 trials linked to this intervention

166
Total Trials
34
Recruiting
62
With Results

Research Evidence

Published studies and systematic reviews

Sort:
Drug-drug interaction after single oral doses of the furanocoumarin methoxsalen and cyclosporine.
Rheeders Malie, Bouwer Marlène, Goosen Theunis C · J Clin Pharmacol · 2006
PMID: 16809802RCT
Randomized controlled study of ECP with methoxsalen as first-line treatment of patients with moderate to severe cGVHD.
Jagasia Madan, Scheid Christof, Socié Gérard et al. · Blood Adv · 2019
PMID: 31332045ObservationalFull text (PMC)
Randomized, double-blind comparison of 1 mg/L versus 5 mg/L methoxsalen bath-PUVA therapy for chronic plaque-type psoriasis.
Vongthongsri Rujirat, Konschitzky Reinhard, Seeber Arno et al. · J Am Acad Dermatol · 2006
PMID: 17010742Observational
An intraindividual study of the characteristics of erythema induced by bath and oral methoxsalen photochemotherapy and narrowband ultraviolet B.
Man Irene, Dawe Robert S, Ferguson James et al. · Photochem Photobiol · 2003
PMID: 12929749Observational
Methoxsalen stimulates electrogenic Cl- secretion in the mouse jejunum.
Hamilton Kirk L, Butt A Grant, Cheng Samantha et al. · Exp Physiol · 2002
PMID: 12392107Observational
Methoxsalen-induced advanced bull's eye maculopathy.
Ranjan Ratnesh, Manayath George J, Salian Romit et al. · Eur J Ophthalmol · 2021
PMID: 32064940Case Report
Methoxsalen-induced macular toxicity.
Maitray Aditya, Rishi Pukhraj · Indian J Ophthalmol · 2017
PMID: 29133667Case ReportFull text (PMC)
Severe influenzalike symptoms associated with methoxsalen photochemotherapy.
Van Coevorden A Marco, Coenraads Pieter-Jan · Arch Dermatol · 2002
PMID: 12056978Case Report

Research data from MEDLINE/PubMed

Benefits & Expected Outcomes

Benefits, expected outcomes, efficacy data, and NNT (Number Needed to Treat) are pending physician authorship and evidence review.

Risks & Side Effects

Adverse reaction and safety data for this drug is sourced from the FDA-approved label.

View adverse reactions & drug interactions on DailyMed

Related Symptoms

Symptoms associated with conditions this intervention addresses

No related symptoms have been mapped yet. Symptom linkages are derived through associated conditions.

Alternatives & Comparisons

Alternative treatments, comparison data, and clinical decision support are pending physician authorship.

Medical Disclaimer

This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider regarding any medical condition or treatment plan.

Do not start, stop, or change any treatment without consulting your healthcare provider.

Quick Facts

Type
Substance / Medication
Fully Specified Name
Methoxsalen (substance)
SNOMED CT
41062004
UMLS CUI
C0025684
RxNorm CUI
6854
Labeler
Strides Pharma Science Limited

Clinical Data

This intervention maps to 3 entities in the Healos knowledge graph.

3
Conditions
0
Biomarkers
0
Specialists
0
Symptoms
166
Clinical Trials

Data is sourced from SNOMED CT, UMLS, and the Healos clinical knowledge graph. Content sections marked as pending require physician authorship. Consult a healthcare provider before starting any treatment.