Exhibit 99.2

123 SAMPLES STREET SAMPLETOWN SS X9X X9X CANADA NWEQ 000001 SAM SAMPLE Security Class COMMON SHARES Holder Account Number C9999999999 IND Form of Proxy - Special Meeting to be held on July 12, 2023 This Form of Proxy is solicited by and on behalf of Management. Notes to proxy 1. Every holder has the right to appoint some other person or company of their choice, who need not be a holder, to attend and act on their behalf at the meeting or any adjournment or postponement thereof. If you wish to appoint a person or company other than the Management Nominees whose names are printed herein, please insert the name of your chosen proxyholder in the space provided (see reverse). 2. If the securities are registered in the name of more than one owner (for example, joint ownership, trustees, executors, etc.), then all those registered should sign this proxy. If you are voting on behalf of a corporation or another individual you may be required to provide documentation evidencing your power to sign this proxy with signing capacity stated. 3. This proxy should be signed in the exact manner as the name(s) appear(s) on the proxy. 4. If a date is not inserted in the space provided on the reverse of this proxy, it will be deemed to bear the date on which it was received by Management. 5. The securities represented by this proxy will be voted as directed by the holder, however, if such a direction is not made in respect of any matter, and the proxy appoints the Management Nominees listed on the reverse, this proxy will be voted as recommended by Management. 6. The securities represented by this proxy will be voted in favour, or voted against each of the matters described herein, as applicable, in accordance with the instructions of the holder, on any ballot that may be called for. If you have specified a choice with respect to any matter to be acted on, the securities will be voted accordingly. 7. This proxy confers discretionary authority in respect of amendments or variations to matters identified in the Notice of Meeting and Management Information Circular or other matters that may properly come before the meeting or any adjournment or postponement thereof, unless prohibited by law. 8. This proxy should be read in conjunction with the accompanying documentation provided by Management. • Call the number listed BELOW from a touch tone telephone. 1 - 866 - 732 - VOTE (8683) Toll Free Proxies submitted must be received by 10:00 am, Eastern Time, on July 10, 2023. VOTE USING THE TELEPHONE OR INTERNET 24 HOURS A DAY 7 DAYS A WEEK! To Vote Using the Telephone To Vote Using the Internet • Go to the following web site: www.investorvote.com • Smartphone? Scan the QR code to vote now. If you vote by telephone or the Internet, DO NOT mail back this proxy. Voting by mail may be the only method for securities held in the name of a corporation or securities being voted on behalf of another individual. Voting by mail or by Internet are the only methods by which a holder may appoint a person as proxyholder other than the Management Nominees named on the reverse of this proxy. Instead of mailing this proxy, you may choose one of the two voting methods outlined above to vote this proxy. To vote by telephone or the Internet, you will need to provide your CONTROL NUMBER listed below. CONTROL NUMBER 23456 78901 23456 NWEQ_PRX_355474/000001/000001/i ------- Fold ------- Fold *S000001Q01 *

C9999999999 IND C04 *C9999999999* *C9999999999* SAM SAMPLE ------- Fold ------- Fold Appointment of Proxyholder I/We being holder(s) of securities of Reunion Neuroscience Inc. (the “Company”) hereby appoint: Gregory Mayes, or failing this person, Edward Smith, or failing this person, Curtis Weber (the "Management Nominees") OR Print the name of the person you are appointing if this person is someone other than the Management Nominees listed herein. as my/our proxyholder with full power of substitution and to attend, act and to vote for and on behalf of the holder in accordance with the following direction (or if no directions have been given, as the proxyholder sees fit) and on all other matters that may properly come before the Special Meeting of shareholders of the Company to be held at the offices of Bennett Jones LLP, 3400 - 100 King St. West, Toronto on July 12, 2023 at 10:00 am, Eastern Time and at any adjournment or postponement thereof. VOTING RECOMMENDATIONS ARE INDICATED BY HIGHLIGHTED TEXT OVER THE BOXES. 1. Approval of Proposed Plan of Arrangement To consider, pursuant to an interim order of the Ontario Superior Court of Justice (Commercial List) dated June 13, 2023, as same may be amended, and, if thought advisable to pass, with or without variation, a special resolution to approve a proposed plan of arrangement involving Reunion Neuroscience Inc. (the "Company), 20231089 Parent, LLC and 1000548481 Ontario Inc. pursuant to Section 192 of the Canada Business Corporations Act, the full text of which is attached as Appendix "B" to the accompanying management information circular of the Company dated June 13, 2023. For Against Other Business To transact such further or other business as may properly come before the Special Meeting and any adjournment(s) or postponement(s) thereof. Signature of Proxyholder I/We authorize you to act in accordance with my/our instructions set out above. I/We hereby revoke any proxy previously given with respect to the Special Meeting. If no voting instructions are indicated above, and the proxy appoints the Management Nominees, this Proxy will be voted as recommended by Management. Signature(s) Date 9 9 9 9 9 3 5 5 4 7 4 1 A P R A R 0 N W E Q

123 SAMPLES STREET SAMPLETOWN SS X9X X9X AUSTRALIA NWEQ 000002 SAM SAMPLE Security Class COMMON SHARES Holder Account Number C9999999999 IND Form of Proxy - Special Meeting to be held on July 12, 2023 This Form of Proxy is solicited by and on behalf of Management. Notes to proxy 1. Every holder has the right to appoint some other person or company of their choice, who need not be a holder, to attend and act on their behalf at the meeting or any adjournment or postponement thereof. If you wish to appoint a person or company other than the Management Nominees whose names are printed herein, please insert the name of your chosen proxyholder in the space provided (see reverse). 2. If the securities are registered in the name of more than one owner (for example, joint ownership, trustees, executors, etc.), then all those registered should sign this proxy. If you are voting on behalf of a corporation or another individual you may be required to provide documentation evidencing your power to sign this proxy with signing capacity stated. 3. This proxy should be signed in the exact manner as the name(s) appear(s) on the proxy. 4. If a date is not inserted in the space provided on the reverse of this proxy, it will be deemed to bear the date on which it was received by Management. 5. The securities represented by this proxy will be voted as directed by the holder, however, if such a direction is not made in respect of any matter, and the proxy appoints the Management Nominees listed on the reverse, this proxy will be voted as recommended by Management. 6. The securities represented by this proxy will be voted in favour, or voted against each of the matters described herein, as applicable, in accordance with the instructions of the holder, on any ballot that may be called for. If you have specified a choice with respect to any matter to be acted on, the securities will be voted accordingly. 7. This proxy confers discretionary authority in respect of amendments or variations to matters identified in the Notice of Meeting and Management Information Circular or other matters that may properly come before the meeting or any adjournment or postponement thereof, unless prohibited by law. 8. This proxy should be read in conjunction with the accompanying documentation provided by Management. • Call the number listed BELOW from a touch tone telephone. 312 - 588 - 4290 Direct Dial Proxies submitted must be received by 10:00 am, Eastern Time, on July 10, 2023. VOTE USING THE TELEPHONE OR INTERNET 24 HOURS A DAY 7 DAYS A WEEK! To Vote Using the Telephone To Vote Using the Internet • Go to the following web site: www.investorvote.com • Smartphone? Scan the QR code to vote now. If you vote by telephone or the Internet, DO NOT mail back this proxy. Voting by mail may be the only method for securities held in the name of a corporation or securities being voted on behalf of another individual. Voting by mail or by Internet are the only methods by which a holder may appoint a person as proxyholder other than the Management Nominees named on the reverse of this proxy. Instead of mailing this proxy, you may choose one of the two voting methods outlined above to vote this proxy. To vote by telephone or the Internet, you will need to provide your CONTROL NUMBER listed below. CONTROL NUMBER 23456 78901 23456 NWEQ_PRX_355474/000002/000002/i ------- Fold ------- Fold *S000002Q01 *

Reunion Neuroscience Inc. 6-K