POWER OF
ATTORNEY

      Know all by these presents, that the undersigned hereby
constitutes and appoints each of Vlad Coric, Matthew Buten,
George Clark and Douglas Gray, or either of them signing
singly, and with full power of substitution, the
undersigned's true and lawful attorney-in-fact to:

(1)	prepare, execute in the undersigned's name and on
the undersigned's behalf, and submit to the U.S.
Securities and Exchange Commission (the "SEC") any
documents necessary or appropriate to obtain codes
and passwords enabling the undersigned to make
electronic filings with the SEC of reports
required by Section 16(a) of the Securities
Exchange Act of 1934 or any rule or regulation of
the SEC;

(2)	execute for and on behalf of the undersigned Forms
3, 4, and 5 in accordance with Section 16(a) of the
Securities Exchange Act of 1934 and the rules
thereunder;

(3)	do and perform any and all acts for and on behalf
of the undersigned which may be necessary or
desirable to complete and execute any such Form 3,
4, or 5, complete and execute any amendment or
amendments thereto, and timely file such form with
the SEC and any stock exchange or similar
authority; and

(4)	take any other action of any type whatsoever in
connection with the foregoing which, in the opinion
of such attorney-in-fact, may be of benefit to, in
the best interest of, or legally required by, the
undersigned, it being understood that the
documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Power of
Attorney shall be in such form and shall contain
such terms and conditions as such attorney-in-fact
may approve in such attorney-in-fact's discretion.

      The undersigned hereby grants to each such attorney-in-
fact full power and authority to do and perform any and every
act and thing whatsoever requisite, necessary, or proper to
be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with
full power of substitution or revocation, hereby ratifying
and confirming all that such attorney-in-fact, or such
attorney-in-fact's substitute or substitutes, shall lawfully
do or cause to be done by virtue of this power of attorney
and the rights and powers herein granted. The undersigned
acknowledges that the foregoing attorneys-in-fact, in serving
in such capacity at the request of the undersigned, are not
assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934.

      This Power of Attorney shall remain in full force and
effect until the undersigned is no longer required to file
Forms 3, 4, and 5 with respect to the undersigned's holdings
of and transactions in securities issued by Biohaven
Pharmaceutical Holding Company Ltd., unless earlier revoked
by the undersigned in a signed writing delivered to the
foregoing attorneys-in-fact.

      IN WITNESS WHEREOF, the undersigned has caused this
Power of Attorney to be executed as of this 22nd day of
December, 2021.
            /s/
Gregory H. Bailey
Signature

 	Gregory H.
Bailey,
M.D.	 Print Name