Company: IXHL
Filing Date: 2025-07-24
Form Type: S-3MEF
Source: 0001213900-25-067336
Chunk: 0

Company: Incannex Healthcare Inc.
Filing Date: 2025-07-24
Form: S-3MEF
Chunk 0
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<div align='center'>As filed with the Securities and Exchange Commission on July 24, 2025</div>

Registration No. 333-

<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM S-3

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

INCANNEX HEALTHCARE INC.

(Exact Name of Registrant as Specified in Its Charter)</div>

| Delaware                        |     | 93-2403210         |
| (State or other jurisdiction of 
 incorporation or organization)  |     | -IRS Employer      
 Identification No. |

<div align='center'>Suite 105, 8 Century Circuit Norwest,
NSW 2153 Australia

+61 409 840 786

(Address, including zip code, and telephone number,
including area code, of Registrant’s principal executive offices)

Joel Latham

President and Chief Executive Officer

Incannex Healthcare Inc.

Suite 105, 8 Century Circuit Norwest,

NSW 2153 Australia

+61 409 840 786

(Name, address, including zip code, and telephone
number, including area code, of agent for service)

Copies to:

Scott M. Stanton, Esq.

Melanie Ruthrauff Levy, Esq.

Jason Miller, Esq.

Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.

San Diego, CA 92130

Tel: (858) 314-1500</div>

Approximate date of commencement of proposed sale to the public:From time to time after the effective date of this registration statement.

If only securities being
registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ☐

If any of the securities
being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933,
as amended, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. ☒

If this Form is filed to
register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list
the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☒
333-283028

If this Form is a post-effective