SECURITIES AND EXCHANGE
COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO § 240.13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED

PURSUANT TO § 240.13d-2.

(Amendment No. 1)*

Tenax Therapeutics, Inc.

(Name of Issuer)

Common Stock, par value $0.0001 per share

(Title of Class of Securities)

88032L100

(CUSIP Number)

December 31, 2018

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

o Rule 13d-1(b)

x Rule 13d-1(c)

o Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No: 88032L100
	(1)	Names of Reporting Persons Iroquois Capital Management L.L.C.
	(2)	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)	o
		(b)	o
	(3)	SEC Use Only
	(4)	Citizenship or Place of Organization Delaware

Number of Shares Beneficially Owned by Each Reporting Person With	(5)	Sole Voting Power 0
	(6)	Shared Voting Power 21,519 shares of Common Stock 191,710 shares of Common Stock issuable upon conversion of Preferred Stock (See Item 4)* 569,950 shares of Common Stock issuable upon exercise of Warrants (See Item 4)*
	(7)	Sole Dispositive Power 0
	(8)	Shared Dispositive Power 21,519 shares of Common Stock 191,710 shares of Common Stock issuable upon conversion of Preferred Stock (See Item 4)* 569,950 shares of Common Stock issuable upon exercise of Warrants (See Item 4)*

(9)	Aggregate Amount Beneficially Owned by Each Reporting Person 21,519 shares of Common Stock 191,710 shares of Common Stock issuable upon conversion of Preferred Stock (See Item 4)* 569,950 shares of Common Stock issuable upon exercise of Warrants (See Item 4)*
(10)	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o
(11)	Percent of Class Represented by Amount in Row (9) 9.99%
(12)	Type of Reporting Person (See Instructions) OO

 * As more fully described in Item 4, the shares of Preferred Stock are subject to a 9.99% blocker and the Warrants are subject to a 9.99% blocker, and the percentage set forth in row (11) gives effect to such blockers. However, as more fully described in Item 4, the securities reported in rows (6), (8) and (9) show the number of shares of Common Stock that would be issuable upon full conversion and exercise of such reported securities and do not give effect to such blockers. Therefore, the actual number of shares of Common Stock beneficially owned by such Reporting Person, after giving effect to such blockers, is less than the number of securities reported in rows (6), (8) and (9).

CUSIP No: 88032L100
	(1)	Names of Reporting Persons Richard Abbe
	(2)	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)	o
		(b)	o
	(3)	SEC Use Only
	(4)	Citizenship or Place of Organization United States of America

Number of Shares Beneficially Owned by Each Reporting Person With	(5)	Sole Voting Power 41,886 shares of Common Stock 326,422 shares of Common Stock issuable upon conversion of Preferred Stock (See Item 4)* 984,454 shares of Common Stock issuable upon exercise of Warrants (See Item 4)*
	(6)	Shared Voting Power 21,519 shares of Common Stock 191,710 shares of Common Stock issuable upon conversion of Preferred Stock (See Item 4)* 569,950 shares of Common Stock issuable upon exercise of Warrants (See Item 4)*
	(7)	Sole Dispositive Power 41,886 shares of Common Stock 326,422 shares of Common Stock issuable upon conversion of Preferred Stock (See Item 4)* 984,454 shares of Common Stock issuable upon exercise of Warrants (See Item 4)*
	(8)	Shared Dispositive Power 21,519 shares of Common Stock 191,710 shares of Common Stock issuable upon conversion of Preferred Stock (See Item 4)* 569,950 shares of Common Stock issuable upon exercise of Warrants (See Item 4)*

(9)	Aggregate Amount Beneficially Owned by Each Reporting Person 63,405 shares of Common Stock 518,132 shares of Common Stock issuable upon conversion of Preferred Stock (See Item 4)* 1,554,404 shares of Common Stock issuable upon exercise of Warrants (See Item 4)*
(10)	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o
(11)	Percent of Class Represented by Amount in Row (9) 9.99%
(12)	Type of Reporting Person (See Instructions) IN; HC

*As more fully described in Item 4, the shares of Preferred Stock are subject to a 9.99% blocker and the Warrants are subject to a 9.99% blocker, and the percentage set forth in row (11) gives effect to such blockers. However, as more fully described in Item 4, the securities reported in rows (6), (8) and (9) show the number of shares of Common Stock that would be issuable upon full conversion and exercise of such reported securities and do not give effect to such blockers. Therefore, the actual number of shares of Common Stock beneficially owned by such Reporting Person, after giving effect to such blockers, is less than the number of securities reported in rows (6), (8) and (9).

CUSIP No: 88032L100
	(1)	Names of Reporting Persons Kimberly Page
	(2)	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)	o
		(b)	o
	(3)	SEC Use Only
	(4)	Citizenship or Place of Organization United States of America

Number of Shares Beneficially Owned by Each Reporting Person With	(5)	Sole Voting Power 0
	(6)	Shared Voting Power 21,519 shares of Common Stock 191,710 shares of Common Stock issuable upon conversion of Preferred Stock (See Item 4)* 569,950 shares of Common Stock issuable upon exercise of Warrants (See Item 4)*
	(7)	Sole Dispositive Power 0
	(8)	Shared Dispositive Power 21,519 shares of Common Stock 191,710 shares of Common Stock issuable upon conversion of Preferred Stock (See Item 4)* 569,950 shares of Common Stock issuable upon exercise of Warrants (See Item 4)*

(9)	Aggregate Amount Beneficially Owned by Each Reporting Person 21,519 shares of Common Stock 191,710 shares of Common Stock issuable upon conversion of Preferred Stock (See Item 4)* 569,950 shares of Common Stock issuable upon exercise of Warrants (See Item 4)*
(10)	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o
(11)	Percent of Class Represented by Amount in Row (9) 9.99%
(12)	Type of Reporting Person (See Instructions) IN

* As more fully described in Item 4, the shares of Preferred Stock are subject to a 9.99% blocker and the Warrants are subject to a 9.99% blocker, and the percentage set forth in row (11) gives effect to such blockers. However, as more fully described in Item 4, the securities reported in rows (6), (8) and (9) show the number of shares of Common Stock that would be issuable upon full conversion and exercise of such reported securities and do not give effect to such blockers. Therefore, the actual number of shares of Common Stock beneficially owned by such Reporting Person, after giving effect to such blockers, is less than the number of securities reported in rows (6), (8) and (9).

This Amendment No. 1 (this “Amendment”) amends the statement on Schedule 13G filed on December 14, 2018 (the “Original Schedule 13G”) with respect to the Common Stock, $0.0001 par value (the “Common Stock”) of Tenax Therapeutics, Inc., a Delaware corporation (the “Company”). Capitalized terms used herein and not otherwise defined in this Amendment have the meanings set forth in the Original Schedule 13G. This Amendment amends and restates Item 4 in its entirety as set forth below.

Item 4. Ownership

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

The information as of the date of the event which requires filing of this statement required by Items 4(a) – (c) is set forth in Rows 5 – 11 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person. The percentage set forth in Row 11 of the cover page for each Reporting Person is based on 3,017,249 shares of Common Stock outstanding as of December 11, 2018, as represented in the Company’s Current Report on Form 8-K filed with the Securities and Exchange Commission on December 11, 2018, and assumes the exercise of the Company’s reported warrants (the “Reported Warrants”) and the conversion of the Company’s reported preferred stock (the “Reported Preferred Stock”), subject to the Blockers (as defined below).

Pursuant to the terms of (i) the certificate of designations containing the terms of the Reported Preferred Stock, the Reporting Persons cannot convert the Reported Preferred Stock to the extent the Reporting Persons would beneficially own, after any such conversion, more than 9.99% of the outstanding shares of Common Stock (the “Preferred Stock Blockers”) and (ii) the Reported Warrants, the Reporting Persons cannot exercise the Reported Warrants to the extent the Reporting Persons would beneficially own, after any such exercise, more than 9.99% of the outstanding shares of Common Stock (the “Warrant Blockers” and collectively with the Preferred Stock Blockers, the “Blockers”), and the percentage set forth in Row 11 of the cover page for each Reporting Person gives effect to the Blockers. Consequently, as of the date of the event which requires the filing of this statement, the Reporting Persons were not able to exercise all of the Reported Preferred Stock or any of the Reported Warrants due to the Blockers.

As of the date of the event which requires filing of this statement, Iroquois Master Fund Ltd. (“Iroquois Master Fund”) held 21,519 shares of Common Stock, shares of Reported Preferred Stock convertible into 191,710 shares of Common Stock and warrants to purchase 569,950 shares of Common Stock and Iroquois Capital Investment Group LLC (“ICIG”) held 41,886 shares of Common Stock, shares of Reported Preferred Stock convertible into 326,422 shares of Common Stock and warrants to purchase 984,454 shares of Common Stock.

Mr. Abbe shares authority and responsibility for the investments made on behalf of Iroquois Master Fund with Ms. Kimberly Page, each of whom is a director of the Iroquois Master Fund. As such, Mr. Abbe and Ms. Page may each be deemed to be the beneficial owner of all shares of Common Stock underlying the Reported Preferred Stock and Reported Warrants (each subject to the Blockers) held by, Iroquois Master Fund. Iroquois Capital is the investment advisor for Iroquois Master Fund and Mr. Abbe is the President of Iroquois Capital. Mr. Abbe has the sole authority and responsibility for the investments made on behalf of ICIG. As such, Mr. Abbe may be deemed to be the beneficial owner of all shares of Common Stock underlying the Reported Preferred Stock and Reported Warrants (each subject to the Blockers) held by, Iroquois Master Fund and ICIG. The foregoing should not be construed in and of itself as an admission by any Reporting Person as to beneficial ownership of shares of Common Stock owned by another Reporting Person. Each of the Reporting Persons hereby disclaims any beneficial ownership of any such shares of Common Stock except to the extent of their pecuniary interest therein.

Item 10. Certification

By signing below each of the undersigned certifies that, to the best of its knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

SIGNATURES

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: February 14, 2019

IROQUOIS CAPITAL MANAGEMENT L.L.C.
By:	/s/	Richard Abbe
		Richard Abbe, President
/s/ Richard Abbe
Richard Abbe
/s/ Kimberly Page
Kimberly Page