POWER OF ATTORNEY
The undersigned hereby constitutes and appoints each of Jennifer K. Bielasz
or her successor, Adam S. Chinnock or his successor, Steven W. Spector or his
successor, and each of them acting singly, as the true and lawful attorney-in-fact of
the undersigned to:
(1) execute for and on behalf of the undersigned, in the undersigned's capacity as
an employee, officer and/or director (or pending employee, officer and/or
director) of Arena Pharmaceuticals, Inc. (the "Company"), Form IDs and
Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange
Act of 1934 and the rules thereunder;
(2) 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 ID, 3, 4,
or 5, complete and execute any amendment or amendments thereto, and file
such form with the United States Securities and Exchange Commission and any
stock exchange or similar authority; and
(3) 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 (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, nor is the Company 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 the Company, unless earlier revoked by the undersigned in a
signed writing delivered to the Company, attention the foregoing attorneys-in-fact.
This Power of Attorney supersedes any previous power of attorney granted by the
undersigned, in the undersigned's capacity as an employee, officer and/or director of the
Company, and relating to Form ID, 3, 4, or 5.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 31st day of March 2016.
/s/ Amit Munshi
Amit D. Munshi
