| 1902 |
X-Rays |
| ~1930 |
Benzoyl Peroxide, topical |
| 1954 |
Tetracycline, oral (oral antibiotic) |
| 1961 |
Tretinoin, topical (Retin-A)
Cyproterone acetate, oral |
| 1969 |
Minocycline, oral (oral antibiotic) |
| 1972 |
Clindamycin, topical (Cleocin-T) |
| 1974 |
Erythromycin, topical (topical antibiotic) |
| 1976 |
Tetracycline, topical (topical antibiotic) |
| 1979 |
Isotretinoin, oral (Accutane) |
| 1982 |
Isotretinoin, topical (topical Accutane) |
| 1983 |
Azelaic acid, topical (Azelex) |
| 1996 |
Adapalene (Differin) |
| 1997 |
Sodium Sulfacetamide (Klaron) |