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Exhibit 99.4

INHALE THERAPEUTIC SYSTEMS, INC.
2000 NON-OFFICER EQUITY INCENTIVE PLAN

STOCK OPTION AGREEMENT
(NONSTATUTORY (UNAPPROVED) STOCK OPTION)

    Pursuant to the Nonstatutory Stock Option Notice ("Option Notice") and this Stock Option Agreement, Inhale Therapeutic Systems, Inc. (the "Company") has granted you an option under its 2000 Non-Officer Equity Incentive Plan (the "Plan") to purchase the number of shares of the Company's Common Stock indicated in the Option Notice at the exercise price indicated in the Option Notice. Defined terms not explicitly defined in this Stock Option Agreement but defined in the Plan shall have the same definitions as in the Plan.

    The details of your option are as follows:

    1.  VESTING.  Subject to the limitations contained herein, your option will vest as provided in the Option Notice, provided that vesting will cease upon the termination of your Continuous Service.

    2.  NUMBER OF SHARES AND EXERCISE PRICE.  The number of shares subject to your option and your exercise price per share referenced in the Option Notice may be adjusted from time to time for capitalization adjustments, as provided in the Plan.

    3.  EXERCISE PRIOR TO VESTING ("EARLY EXERCISE").  If approved in advance by the Board of Directors, and subject to the provisions of this option, you may elect at any time that is both (i) during the period of your Continuous Service and (ii) during the term of your option, to exercise all or part of your option, including the nonvested portion of your option; provided, however, that.

    4.  METHOD OF PAYMENT.  Payment of the exercise price is due in full upon exercise of all or any part of your option. You may elect to make payment of the exercise price in one or more of the following forms

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    5.  SECURITIES LAW COMPLIANCE.  Notwithstanding anything to the contrary contained herein, your option may not be exercised unless the shares issuable upon exercise of your option are then registered under the Securities Act or, if such shares are not then so registered, the Company has determined that such exercise and issuance would be exempt from the registration requirements of the Securities Act. The exercise of your option must also comply with other applicable laws and regulations governing the option, and the option may not be exercised if the Company determines that the exercise would not be in material compliance with such laws and regulations.

    6.  TERM.  The term of your option commences on the Grant Date and expires upon the earliest of the following:

    7.  EXERCISE  

    8.  TRANSFERABILITY.  Your option is not transferable, except by will or by the laws of descent and distribution, and is exercisable during your life only by you. Notwithstanding the foregoing, by delivering written notice to the Company, in a form satisfactory to the Company, you may designate a third party who, in the event of your death, shall thereafter be entitled to exercise your option.

    9.  OPTION NOT A SERVICE CONTRACT.  Your option is not an employment or service contract, and nothing in your option shall be deemed to create in any way whatsoever any obligation on your part to continue in the employ of the Company or an Affiliate, or of the Company or an Affiliate to continue your employment. In addition, nothing in your option shall obligate the Company or an Affiliate, their respective shareholders, Boards of Directors, Officers or Employees to continue any

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relationship that you might have as a Consultant for the Company or an Affiliate. Your option is a matter entirely separate from, and shall not affect, your pension rights and terms of employment and, in particular (but without prejudice to the foregoing), if you shall cease for any reason (including your wrongful dismissal) to be employed by or hold office with the Company or an Affiliate you shall not be entitled by way of compensation for loss or otherwise howsoever, to any sum or benefit to compensate you for the loss of any right or benefit under the Plan.

    10.  WITHHOLDING OBLIGATIONS.  

    11.  NOTICES.  Any notices provided for in your option or the Plan shall be given in writing and shall be deemed effectively given upon receipt.

    12.  GOVERNING PLAN DOCUMENT.  Your option is subject to all the provisions of the Plan, the provisions of which are hereby made a part of your option, and is further subject to all interpretations, amendments, rules and regulations which may from time to time be promulgated and adopted pursuant to the Plan provided that the terms of this agreement shall be governed by the law of England and Wales except that any matters relating to the internal governance of the Company shall be governed by Delaware law. In the event of any conflict between the provisions of your option and those of the Plan, the provisions of the Plan shall control.

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INHALE THERAPEUTIC SYSTEMS, INC. 2000 NON-OFFICER EQUITY INCENTIVE PLAN