Is Thioguanine registered with the SFDA?

The SFDA human drug list (edition 4-2026, as published by the Council of Health Insurance) lists 0 valid registrations of Thioguanine.

Is Thioguanine approved by the US FDA?

Drugs@FDA lists 1 application product line for Thioguanine, including THIOGUANINE (Prescription).

Are there safety signals or safety updates for Thioguanine?

US FDA: 1 entry (latest 2024-07-09).

Active substance

Thioguanine

SFDA 1
US FDA 1
Health Canada 1
Safety 1

Open in the medicines table

SFDA Saudi Arabia — SFDA human drug list

Trade name	Strength	Form · route	Pack	Public price	Type	Company	Status
LANVIS 40MG TABLET	40 mg	Tablet · Oral use	25 Blister	SAR 367.20	NCE · Prescription	ASPEN	Withdrawn by MAH · Not Marketed

US FDA United States — FDA approvals (Drugs@FDA)

Product	Strength	Form · route	Applicant	Status	First approved
THIOGUANINE	40MG	tablet · oral	WAYLIS THERAP	Prescription	18 Jan 1966

Canada Canada — marketed products (Health Canada)

Brand	DIN	Strength	Form · route	Company
LANVIS	00282081	40 MG	TABLET · ORAL	ASPEN PHARMACARE CANADA INC.

Safety signals and safety-related labeling changes

US FDA 9 Jul 2024 THIOGUANINE — safety-related labeling change
Labeling sections changed: Warnings and Precautions; Adverse Reactions

All safety entries for thioguanine →

Values as published by each source: SFDA human drug list (4-2026, as published by the Council of Health Insurance; indications from the CHI Daman Drug Formulary), Drugs@FDA, EMA medicines data, Health Canada Drug Product Database (Open Government Licence – Canada), CMS NADAC, NHS Drug Tariff Part VIIIA (NHSBSA Copyright, Open Government Licence v3.0), WHO Model List of Essential Medicines (CC BY 3.0 IGO; regrouped by active substance, not created by WHO), EMA PRAC, US FDA safety-related labeling changes and MHRA Drug Safety Update (Open Government Licence v3.0). Sources and reuse. Not a substitute for the official registers or the product information.