| Cover | Oct. 21, 2021 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 21, 2021 |
| Entity File Number | 001-38323 |
| Entity Registrant Name | Adial Pharmaceuticals, Inc. |
| Entity Central Index Key | 0001513525 |
| Entity Tax Identification Number | 82-3074668 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 1180 Seminole Trail |
| Entity Address, Address Line Two | Ste 495 |
| Entity Address, City or Town | Charlottesville |
| Entity Address, State or Province | VA |
| Entity Address, Postal Zip Code | 22901 |
| City Area Code | 434 |
| Local Phone Number | 422-9800 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Common Stock [Member] | |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | ADIL |
| Security Exchange Name | NASDAQ |
| Warrants | |
| Title of 12(b) Security | Warrants |
| Trading Symbol | ADILW |
| Security Exchange Name | NASDAQ |
