Can you take Anastrozole (Arimidex) and Testosterone Cypionate together?
Yes — these two work well together.
Anastrozole (Arimidex) and Testosterone Cypionate are commonly taken together and generally work well as a pair.
Why these two interactSources for why these two interact: Jumps to this entry in the sources and references list at the end of the page.
AI manages estradiol on TRT.
What to do about itSources for what to do about it: Jumps to this entry in the sources and references list at the end of the page.
Titrate AI to target mid-range E2 with bloodwork every 6–8 weeks.
TimingSources for timing: Jumps to this entry in the sources and references list at the end of the page.
No separation needed — taking Anastrozole (Arimidex) and Testosterone Cypionate in the same dose window is fine and is usually the point of pairing them.
The two items in this pair
Anastrozole (Arimidex)
- Category:
- medication
- Typical timing:
- any
- With food:
- either
- Half-life:
- 46 h
Testosterone Cypionate
- Category:
- hormone
- Typical timing:
- any
- With food:
- either
- Half-life:
- 192 h
Check your whole routine, not just this pair
One pair rarely tells the whole story. DoseRoutine checks every combination in your stack at once — supplements, TRT, peptides, GLP-1s and prescriptions — and schedules the doses so timing conflicts like this one are handled automatically.
Frequently asked
Sources cited on this page
Specific documents referenced by the numbered markers above.
- The utilization and impact of aromatase inhibitor therapy in men with elevated estradiol levels on testosterone therapy(opens in a new tab)PubMed — National Library of Medicine · pubmed.ncbi.nlm.nih.gov/34090245/
- Testosterone therapy in men with hypogonadism: an Endocrine Society clinical practice guideline(opens in a new tab)PubMed — National Library of Medicine · pubmed.ncbi.nlm.nih.gov/29562364/
Verify at
This assessment is mechanism-based. These publisher search links let you check it against the current evidence — they are not citations, so they are not numbered.
- PubMed: Anastrozole (Arimidex) + Testosterone Cypionate(publisher search, opens in a new tab)National Library of Medicine · publisher search
- DailyMed label: Anastrozole (Arimidex)(publisher search, opens in a new tab)U.S. National Library of Medicine · publisher search
- DailyMed label: Testosterone Cypionate(publisher search, opens in a new tab)U.S. National Library of Medicine · publisher search
- Cochrane Library(publisher search, opens in a new tab)Cochrane · publisher search
Related combinations
Educational information only, not medical advice. DoseRoutine does not diagnose or treat. Talk to your prescriber before starting, stopping or combining anything — especially if you take prescription medication or are pregnant or breastfeeding.