Thanks to Dr Sun for this diagram.
Timeline details (left → right)
| Year | Product (image above/below the line) | Form & delivery |
|---|---|---|
| 1935-1937 | No product image—text block below the line: “Testosterone first synthesized” with a bullet list of early preparations (oral 17α-methyltestosterone, injectable esterified, 17β-hydroxy testosterone, subdermal pellets). | — |
| 1979 | Depo®-Testosterone (vial & carton) | intramuscular injection of testosterone cypionate |
| 1995 | Androderm® (square purple patch package, shown below the line) | transdermal patch |
| 2000 | Androgel® (blue box) | transdermal gel |
| 2014 | Natesto | nasal gel |
| 2018 | Xyosted® (auto-injector pen) | subcutaneous injection / autoinjector – testosterone enanthate |
| 2019 | Jatenzo® (white bottle with orange capsules) | oral capsules – testosterone undecanoate |
| March 2022 | Tlando® (three identical white bottles) | oral capsules – testosterone undecanoate |
| July 2022 | KYZATREX® (three bottles in differing strengths with tablets scattered) | oral capsules – testosterone undecanoate |
