Track Thymagen in Peptimes™
Thymagen, also spelled Thymogen, is a dipeptide: L-glutamyl-L-tryptophan (Glu-Trp). FDA's substance registry lists this dipeptide under the name oglufanide. (Source: FDA's substance registry (GSRS).)
Is Thymagen FDA-approved?
Not in the US. Thymagen isn't FDA-approved in the US: Drugs@FDA lists no application with it, or its dipeptide Glu-Trp, as an active ingredient.
Thymagen
Also: Thymogen, Тимоген, Glu-Trp, L-glutamyl-L-tryptophan
- Status label in the Peptimes Library
- Approved outside the US
- Routes in Peptimes
- IntramuscularNasalTopical
- Updated
- 1 Nov 2026
US regulatory status
What studies have looked at
Each point says who or what was studied and what the study reported, with its source and the date we checked it. These are findings from the sources cited, not advice or a promise of any result.
- In humans
A double-blind, placebo-controlled study (in Russian) in older people before surgery for abdominal tumours: the authors report restored measures of cellular immunity, fewer post-operative complications and a shorter post-operative period. The abstract gives no patient numbers.
Source: PMID 21957588, checked 1 Nov 2026
How to track it in Peptimes
Add Thymagen in My Protocols and set the schedule you already follow: days of the week, times of day and a start date. Peptimes never suggests an amount when you log or schedule a dose. Its Library entry shows the status label “Approved outside the US”. In the US it is not FDA-approved. It is a separate Library entry from Thymalin.
- Routes: intramuscular, nasal or topical. Choose the one that matches each dose.
- Logging: the amount you took, the route and how you feel.
- Injection sites: intramuscular doses record the site, and Insights shows where you’ve injected and how recently. It never suggests where to inject next. Nasal and topical doses skip this step.
- Reminders and history: reminders at your times, Dose History, the Calendar and CSV or JSON export work as described on the peptide tracker app page.
Peptimes is a tracking app, not medical advice. Talk to a licensed clinician about your treatment. Peptimes doesn’t sell Thymagen or any other compound.
More sources
- FDA, Global Substance Registration System, Oglufanide, checked 1 Nov 2026: the dipeptide L-glutamyl-L-tryptophan and its formula, C16H19N3O5.