| Cover | Nov. 17, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 17, 2021 |
| Entity File Number | 001-39752 |
| Entity Registrant Name | Petros Pharmaceuticals, Inc. |
| Entity Central Index Key | 0001815903 |
| Entity Tax Identification Number | 85-1410058 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 1185 Avenue of the Americas |
| Entity Address, Address Line Two | 3rd Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10036 |
| City Area Code | 973 |
| Local Phone Number | 242-0005 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.0001 per share |
| Trading Symbol | PTPI |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
