Exhibit 10.17B

PERSONAL, PRIVATE AND CONFIDENTIAL

Monday, December 08, 2014

Paul Treacy

Re:    Amendment to Terms and Conditions of Employment (the “Amendment”)

Dear Paul:

As discussed, I am pleased to formally notify you that the Company has approved
a Change in Control severance arrangement for you. The terms and conditions of
this Change in Control severance arrangement are set forth in the attached
Schedule 1. Both you and the Company hereby agree that your terms and conditions
of employment as contained in the agreement with the Company dated 10 June 2014
(the “Employment Agreement”) are amended to include Schedule 1, effective as of
the date that you return this fully signed Amendment.

In all other respects, the remaining terms and conditions of your Employment
Agreement are unaffected and shall continue in full force.

To amend your Employment Agreement as provided above, please sign and date the
Amendment in the space provided below, and return it to me at your earliest
convenience. Do not hesitate to let me know if you have any questions.

Best regards,

/s/ Heather McGaughey            
Heather McGaughey
Senior Vice President, Human Resources

REVIEWED, UNDERSTOOD AND AGREED:

/s/ Paul Treacy                
Paul Treacy
 

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SCHEDULE 1
1.
Covered Termination: The Executive will be eligible for the Severance Benefits
in the event of a Covered Termination which is effective on or within twelve
(12) months following a Change in Control, subject to the requirements set forth
in this Schedule.

2.
Severance Benefits: The Severance Benefits will consist of cash severance
payment and payments for continued health care insurance coverage, as follows:

a.
Cash Severance Benefits: A lump sum cash severance payment will be paid to the
Executive in an amount equal to the sum of the following three components (the
“Severance Payment”): (1) Executive’s annual basic salary in effect as of the
effective date of the Executive’s Covered Termination (without giving effect to
any reduction in base salary that would constitute grounds for Constructive
Termination) (the “Severance Base”) multiplied by 150%; (2) the product of the
Severance Base multiplied by the Bonus Percentage (defined below) multiplied by
150%; and (3) the product of the Severance Base multiplied by the Bonus
Percentage multiplied by the Bonus Multiplier (defined below). Notwithstanding
the foregoing, to the extent applicable, the Severance Payment shall be reduced
by any amounts paid to Executive (i) during any period of garden leave
immediately preceding the Covered Termination, (ii) qualifying as pay-in-lieu of
notice, or (iii) any other severance benefits whether contractual or statutory
(including but not limited to any statutory redundancy pay) or other similar
benefits payable to the Executive in connection with the Executive’s termination
of employment.

By way of example, if the effective date of the Covered Termination is 30 June,
Executive’s annual basic salary in effect as of the Covered Termination is
€100,000, and his target bonus is 40% of basic salary (and Executive has not
received any higher annual bonus in either of the last two calendar years prior
to the Covered Termination), the Severance Payment shall be calculated as
follows:

(1)    €100,000 x 150% (1.5) = €150,000
(2)    €100.000 x bonus percentage (.4) x 150% (1.5) = €60,000
(3)     €100,000 x bonus percentage (.4) x 6/12 = €20,000

Total Severance Payment: 150,000 + 60,000 + 20,000 = €230,000

b.
Health Continuation Coverage Benefits: To the extent that Executive elects
continued private health insurance coverage following the Covered Termination at
a level equivalent to the private health insurance coverage available to
Executive during his employment, the Employer shall pay the applicable premiums
(inclusive of premiums for the Executive’s participating dependents, if any) for
such plan coverage for a period of eighteen (18) months following the date of
the Covered Termination (or such earlier date if the Executive dies, if

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Executive and/or his dependents are no longer eligible for coverage, or if
Executive obtains new employment which includes eligibility for health plan
coverage). The provision of these benefits is subject to health insurance
coverage being obtained on normal terms and subject to medical and other
underwriting requirements and other terms and conditions. The Executive shall be
required to notify the Employer immediately if the Executive becomes covered by
a health insurance plan of a subsequent employer or if the Executive or his
participating dependents otherwise cease to be eligible for coverage during the
period provided above. Upon the conclusion of such period of insurance premium
payments made by the Employer, the Executive will be responsible for the entire
payment of premiums.

3.
Certain Definitions:

a.
“Affiliate” means any “parent” or “subsidiary” of Employer as such terms are
defined in Rule 405 of the United States Securities Act of 1933, as amended.

b.
“Bonus Percentage” means the greater of (i) any annual bonus, expressed as a
percentage of annual base salary paid in the year of determination, paid to the
Executive by the Company or an Affiliate in respect of either of the last two
calendar years prior to the date of a Covered Termination or (ii) the
Executive’s target bonus, expressed as a percentage of annual base salary, for
the calendar year in which the Covered Termination occurs.

c.
“Bonus Multiplier” means the quotient obtained by dividing the number of full
months that the Executive is employed by the Company or an Affiliate in the year
of a Covered Termination by twelve (12).

d.
“Change in Control” means “Change in Control” as defined in the Jazz
Pharmaceuticals plc Amended and Restated Executive Change in Control and
Severance Benefit Plan.

e.
“Cause” means the occurrence of any one or more of the following:

(i)
the Executive’s unauthorised use or disclosure of the confidential information
or trade secrets of the Employer or its Affiliates which use or disclosure
causes material harm to the Employer or an Affiliate;

(ii)
the Executive’s material breach of any agreement between the Executive and the
Employer or an Affiliate which remains uncured for ten (10) days after receiving
written notification of the breach from the Employer;

(iii)
the Executive’s material failure to comply with the written policies or rules of
the Employer or an Affiliate which remains uncured for ten (10) days after
receiving written notification of the breach from the Employer;

(iv)
the Executive’s conviction of, or plea of “guilty” or “no contest” to, any crime
involving fraud, dishonesty, or moral turpitude under the laws of any United
States or Irish Federal, state, local, or foreign governmental authority;

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(v)
the Executive’s gross misconduct;

(vi)
the Executive’s continuing failure to perform assigned duties after receiving
written notification of the failure from the Employer;

(vii)
the Executive’s failure to cooperate in good faith with a governmental or
internal investigation of the Employer, its Affiliates, directors, officers, or
employees, if the Employer has requested the Executive’s cooperation; or

(viii)
any action of Executive warranting summary dismissal or termination without
prior notice under Executive’s Terms and Conditions of Employment dated 10 June
2014 or such other employment agreement with the Employer as in effect on the
Covered Termination (as applicable, the “Employment Agreement”) or under
applicable employment laws.

f.
“Constructive Termination” means a resignation of employment by Executive after
an action or event which constitutes Good Reason is undertaken by Employer or an
Affiliate, or otherwise occurs, provided such action or event is not agreed to
by Executive in writing; provided, however, that in order for Executive’s
resignation to constitute a Constructive Termination, Executive must (i) provide
written notice to Employer’s General Counsel within thirty (30) days after the
first occurrence of the event giving rise to Good Reason setting forth the basis
for such resignation, (ii) allow Employer at least thirty (30) days from receipt
of such written notice to cure such event, and (iii) if such event is not
reasonably cured within such period, resign from all positions Executive then
holds with Employer and any Affiliate effective not later than ninety (90) days
after the expiration of the cure period.

g.
“Covered Termination” means either (i) an Involuntary Termination Without Cause,
or (ii) a Constructive Termination. Termination of employment of Executive due
to death or disability shall not constitute a Covered Termination unless a
resignation of employment by Executive immediately prior to Executive’s death or
disability would have qualified as a Constructive Termination.

h.
“Executive” means Paul Treacy.

i.
“Good Reason” means the occurrence of any one or more of the following actions
or events without Executive’s written consent:

i.
a reduction in Executive’s base salary by more than ten percent (10%) (other
than a reduction in conjunction with (x) a Company-wide salary reduction, or (y)
a salary reduction involving senior management of Employer which results in
salary reductions for employees similarly-situated to Executive);

ii.
a relocation of Executive’s place of employment that increases Executive’s
one-way commute by more than thirty-five (35) miles;

iii.
a substantial reduction in Executive’s duties or responsibilities (and not
simply a change in reporting relationships) in effect immediately prior to

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the effective date of the Change in Control; provided, however, that it shall
not constitute “Good Reason” if, following the effective date of the Change in
Control, either (x) Employer is retained as a separate legal entity or business
unit and Executive holds the same position in such legal entity or business unit
as Executive held before such effective date, (y) Executive holds a position
with duties and responsibilities comparable (although not necessarily identical,
in view of the relative sizes of Employer and the entity involved in the Change
in Control) to the duties and responsibilities of Executive prior to the
effective date of the Change in Control; or
iv.
a reduction in the Executive’s title.

j.
“Involuntary Termination Without Cause” means a termination by the Employer of
the Executive’s employment relationship with the Employer or an Affiliate for
any reason other than for Cause and other than as a result of death or
disability.

4.
Additional Terms for Severance Benefits: The following additional terms shall
apply:

a.
Release: In order to be eligible to receive, and prior to receipt of, any of the
Severance Benefits, the Executive must execute a general waiver and release and
return such release to Employer within the time period specified therein, but in
no event more than forty-five (45) days following the date of the Covered
Termination, and such release must become effective in accordance with its terms
but in all cases not later than the sixtieth (60th) day following the Covered
Termination. No release shall require the Executive to forego any unpaid salary,
any accrued but unpaid vacation pay, or any vested or earned benefits payable
pursuant to the Executive’s Employment Agreement or by law. The Employer, in its
sole discretion, may modify the form of the required release to comply with
applicable law and shall determine the form of the required release.

b.
Mitigation: The Executive shall not be required to mitigate damages as a
condition of the Severance Benefits by seeking other employment or otherwise.
Similarly, no amount of the Severance Benefits shall be reduced by any
compensation earned by the Executive as a result of employment by another
employer or any retirement benefits received by such Executive after the date of
the Executive’s termination of employment with the Employer, except for
Severance Benefits relating to payments for health continuation coverage
provided above.

c.
Tax Withholding, Contributions: All payments under this Schedule will be subject
to all applicable deductions and withholdings of tax, PRSI, Universal Social
Charge, and any other deductions which are required pursuant to the terms of the
Executive's employment or by law, or which are provided for in the Executive's
Employment Agreement and/or this Schedule.