| Cover | Apr. 10, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Apr. 10, 2024 |
| 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 | 4870 Sadler Road |
| Entity Address, Address Line Two | Ste 300 |
| Entity Address, City or Town | Glen Allen |
| Entity Address, State or Province | VA |
| Entity Address, Postal Zip Code | 23060 |
| City Area Code | (804) |
| Local Phone Number | 487-8196 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | ADIL |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
