Exhibit
99.01

Tonix
Pharmaceuticals Announces Second Major Managed Medicare Payer Agreement for TONMYA®
New
agreement, effective immediately, adds approximately 21 million Medicare lives (38% of approximately 55 million Medicare lives
in the U.S.)
Commercial
and government payer coverage for TONMYA now reaches approximately 166 million covered lives (53% of total U.S. lives)
BERKELEY
HEIGHTS, N.J., September 22, 2026 (GLOBE NEWSWIRE) — Tonix Pharmaceuticals Holding Corp. (Nasdaq: TNXP) (“Tonix” or
“the Company”), a fully integrated, commercial-stage biopharmaceutical company, today announced a second major managed Medicare
agreement for TONMYA® (cyclobenzaprine HCl sublingual tablets) for the treatment of fibromyalgia in adults that is effective
immediately, adding approximately 21 million Medicare lives (38% of approximately 55 million Medicare lives in the U.S.). Medicare
coverage now totals 32 million Medicare lives in the U.S. (58% of approximately 55 million Medicare lives in the U.S.).
Total
commercial and government payer coverage for TONMYA now reaches approximately 166 million covered lives (53% of approximately 314 million
total U.S. lives). Previously, Tonix announced commercial payer agreements with two leading group purchasing organizations, and one major
managed Medicare agreement. In addition, TONMYA is covered by Medicaid in nearly all states.
“The
second major managed Medicare agreement expands patient access to TONMYA, the first fibromyalgia treatment approved in over 15 years,”
said Seth Lederman, M.D., President and Chief Executive Officer of Tonix Pharmaceuticals. “We believe the commercial and managed
Medicare coverage agreements reflect TONMYA’s compelling value to patients and payers as a first-in-class, non-opioid analgesic
designed for daily bedtime administration and long-term use in adults with fibromyalgia.”
Thomas
Englese, MBA, Chief Commercial Officer of Tonix Pharmaceuticals, added, “We remain confident in the trajectory of the TONMYA launch.
Our team is focused on executing our strategy across market access, sales, and marketing to improve access for TONMYA and raise awareness
for fibromyalgia and TONMYA. This new Medicare coverage agreement is expected to increase patient access to TONMYA. Approximately 50
new sales force representatives have been fully activated in the field, bringing the total sales force to 150 representatives. We are
focused on translating the new coverage into more opportunities for fibromyalgia patients to access TONMYA.”

About
Fibromyalgia
Fibromyalgia
is a chronic pain disorder that is understood to result from amplified sensory and pain signaling within the central nervous system.
Fibromyalgia afflicts more than 10 million adults in the U.S., predominantly women. Symptoms of fibromyalgia include chronic widespread
pain, nonrestorative sleep, fatigue, and morning stiffness. Other associated symptoms include cognitive dysfunction and mood disturbances,
including anxiety and depression. Individuals suffering from fibromyalgia struggle with their daily activities, have impaired quality
of life, and frequently are disabled. Physicians and patients report common dissatisfaction with currently marketed products.
About
TONMYA® (cyclobenzaprine HCl sublingual tablets)
TONMYA
(cyclobenzaprine HCl sublingual tablets) was approved on August 15, 2025, by the U.S. Food and Drug Administration (FDA) for the treatment
of fibromyalgia in adults. TONMYA is the first new prescription medicine approved for fibromyalgia in more than 15 years. TONMYA provides
rapid transmucosal absorption of cyclobenzaprine and reduced production of a long half-life active metabolite, norcyclobenzaprine, due
to bypassing first-pass hepatic metabolism. TONMYA is a multifunctional agent with potent binding and antagonist activities at the 5-HT2A
serotonergic, alpha1-adrenergic, H1-histaminergic, and M1-muscarinic receptors. TONMYA was investigated as TNX-102 SL. TNX-102 SL is
also being developed to treat acute stress disorder (ASD)/acute stress reaction (ASR), and major depressive disorder (MDD). The United
States Patent and Trademark Office (USPTO) issued United States Patent No. 9636408 in May 2017, Patent No. 9956188 in May 2018, Patent
No. 10117936 in November 2018, Patent No. 10,357,465 in July 2019, and Patent No. 10736859 in August 2020. The Protectic™ protective
eutectic and Angstro-Technology™ formulation claimed in the patent are important elements of Tonix’s proprietary TONMYA composition.
These patents are expected to provide TONMYA with U.S. market exclusivity until 2034.
Tonix
Pharmaceuticals Holding Corp.
Tonix
Pharmaceuticals* is a fully integrated, commercial-stage biopharmaceutical company focused on central nervous system (CNS) disorders,
infectious diseases, and immunology conditions with high unmet medical needs. TONMYA® (cyclobenzaprine HCl sublingual tablets 2.8mg),
the Company’s flagship internally conceived and developed medicine, is the first treatment for fibromyalgia in more than 15 years.
Tonix’s CNS commercial infrastructure supports its marketed products, including its acute migraine products, Zembrace® SymTouch®
(sumatriptan injection 3 mg) and Tosymra® (sumatriptan nasal spray 10 mg). Tonix is extending the science behind TONMYA in Phase
2 clinical studies to evaluate the potential of TNX-102 SL in major depressive disorder and acute stress disorder/acute stress reaction.
Tonix is also advancing a pipeline of infectious disease programs, including Phase 2-ready monoclonal antibody TNX-4800 (anti-OspA mAb)
for Lyme disease prevention in the U.S., and TNX-801 (horsepox, live virus vaccine), a vaccine in development for the prevention of mpox
and smallpox. Within immunology, TNX-1500 (anti-CD40L mAb) is a Phase 2-ready, third-generation CD40 ligand inhibitor for the prevention
of kidney transplant rejection. To learn more, visit www.tonixpharma.com.
*Tonix’s
product development candidates, including TNX-102 SL for new, unapproved indications, are investigational new drugs or biologics. Their
efficacy and safety have not been established and have not been approved for any indication.
Zembrace
SymTouch and Tosymra are registered trademarks of Tonix Medicines. TONMYA is a registered trademark of Tonix Pharma Limited. All other
marks are property of their respective owners.

Forward
Looking Statements
Certain
statements in this press release are forward-looking within the meaning of the Private Securities Litigation Reform Act of 1995. These
statements may be identified by the use of forward-looking words such as “anticipate,” “believe,” “forecast,”
“estimate,” “expect,” and “intend,” among others. There are a number of factors that could cause
actual events to differ materially from those indicated by such forward-looking statements. These factors include, but are not limited
to, risks related to the failure to successfully launch and commercialize TONMYA® and any of our approved products; risks related
to the failure to obtain FDA clearances or approvals and noncompliance with FDA regulations; risks related to the timing and progress
of clinical development of our product candidates; our need for additional financing; uncertainties of patent protection and litigation;
uncertainties of government or third party payor reimbursement; limited research and development efforts and dependence upon third parties;
and substantial competition. As with any pharmaceutical under development, there are significant risks in the development, regulatory
approval and commercialization of new products. Tonix does not undertake an obligation to update or revise any forward-looking statement.
Investors should read the risk factors set in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, as
filed with the SEC on March 12, 2026, and periodic reports filed with the SEC on or after the date thereof. Tonix does not undertake
an obligation to update or revise any forward-looking statement. All of Tonix’s forward-looking statements are expressly qualified
by all such risk factors and other cautionary statements. The information set forth herein speaks only as of the date thereof.
Investor
Contacts
Deborah
Elson
Tonix
Pharmaceuticals
deborah.elson@tonixpharma.com
investor.relations@tonixpharma.com
Brian
Korb
astr
partners
(917)
653-5122
brian.korb@astrpartners.com

Media
Contacts
Andrea
Cohen
Sam
Brown Inc.
(917)
209-7163
andreacohen@sambrown.com
INDICATION
TONMYA
is indicated for the treatment of fibromyalgia in adults.
CONTRAINDICATIONS
TONMYA
is contraindicated:
In
patients with hypersensitivity to cyclobenzaprine or any inactive ingredient in TONMYA. Hypersensitivity reactions may manifest as an
anaphylactic reaction, urticaria, facial and/or tongue swelling, or pruritus. Discontinue TONMYA if a hypersensitivity reaction is suspected.
With concomitant use of monoamine oxidase (MAO) inhibitors or within 14 days after discontinuation of an MAO inhibitor. Hyperpyretic
crisis seizures and deaths have occurred in patients who received cyclobenzaprine (or structurally similar tricyclic antidepressants)
concomitantly with MAO inhibitors drugs.
During
the acute recovery phase of myocardial infarction, and in patients with arrhythmias, heart block or conduction disturbances, or congestive
heart failure. In patients with hyperthyroidism.
WARNINGS
AND PRECAUTIONS
Embryofetal
toxicity: Based on animal data, TONMYA may cause neural tube defects when used two weeks prior to conception and during the first trimester
of pregnancy. Advise females of reproductive potential of the potential risk and to use effective contraception during treatment and
for two weeks after the final dose. Perform a pregnancy test prior to initiation of treatment with TONMYA to exclude use of TONMYA during
the first trimester of pregnancy.
Serotonin
syndrome: Concomitant use of TONMYA with selective serotonin reuptake inhibitors (SSRIs), serotonin norepinephrine reuptake inhibitors
(SNRIs), tricyclic antidepressants, tramadol, bupropion, meperidine, verapamil, or MAO inhibitors increases the risk of serotonin syndrome,
a potentially life-threatening condition. Serotonin syndrome symptoms may include mental status changes, autonomic instability, neuromuscular
abnormalities, and/or gastrointestinal symptoms. Treatment with TONMYA and any concomitant serotonergic agent should be discontinued
immediately if serotonin syndrome symptoms occur and supportive symptomatic treatment should be initiated. If concomitant treatment with
TONMYA and other serotonergic drugs is clinically warranted, careful observation is advised, particularly during treatment initiation
or dosage increases.

Tricyclic
antidepressant-like adverse reactions: Cyclobenzaprine is structurally related to TCAs. TCAs have been reported to produce arrhythmias,
sinus tachycardia, prolongation of the conduction time leading to myocardial infarction and stroke. If clinically significant central
nervous system (CNS) symptoms develop, consider discontinuation of TONMYA. Caution should be used when TCAs are given to patients with
a history of seizure disorder, because TCAs may lower the seizure threshold. Patients with a history of seizures should be monitored
during TCA use to identify recurrence of seizures or an increase in the frequency of seizures.
Atropine-like
effects: Use with caution in patients with a history of urinary retention, angle-closure glaucoma, increased intraocular pressure, and
in patients taking anticholinergic drugs.
CNS
depression and risk of operating a motor vehicle or hazardous machinery: TONMYA monotherapy may cause CNS depression. Concomitant use
of TONMYA with alcohol, barbiturates, or other CNS depressants may increase the risk of CNS depression. Advise patients not to operate
a motor vehicle or dangerous machinery until they are reasonably certain that TONMYA therapy will not adversely affect their ability
to engage in such activities. Oral mucosal adverse reactions: In clinical studies with TONMYA, oral mucosal adverse reactions occurred
more frequently in patients treated with TONMYA compared to placebo. Advise patients to moisten the mouth with sips of water before administration
of TONMYA to reduce the risk of oral sensory changes (hypoesthesia). Consider discontinuation of TONMYA if severe reactions occur.
ADVERSE
REACTIONS
The
most common adverse reactions (incidence ≥2% and at a higher incidence in TONMYA-treated patients compared to placebo-treated patients)
were oral hypoesthesia, oral discomfort, abnormal product taste, somnolence, oral paresthesia, oral pain, fatigue, dry mouth, and aphthous
ulcer.
DRUG
INTERACTIONS
MAO
inhibitors: Life-threatening interactions may occur.
Other
serotonergic drugs: Serotonin syndrome has been reported.
CNS
depressants: CNS depressant effects of alcohol, barbiturates, and other CNS depressants may be enhanced.
Tramadol:
Seizure risk may be enhanced.
Guanethidine
or other similar acting drugs: The antihypertensive action of these drugs may be blocked.

USE
IN SPECIFIC POPULATIONS
Pregnancy:
Based on animal data, TONMYA may cause fetal harm when administered to a pregnant woman. The limited amount of available observational
data on oral cyclobenzaprine use in pregnancy is of insufficient quality to inform a TONMYA-associated risk of major birth defects, miscarriage,
or adverse maternal or fetal outcomes. Advise pregnant women about the potential risk to the fetus with maternal exposure to TONMYA and
to avoid use of TONMYA two weeks prior to conception and through the first trimester of pregnancy. Report pregnancies to the Tonix Medicines,
Inc., adverse-event reporting line at 1-888-869-7633 (1-888-TNXPMED).
Lactation:
A small number of published cases report the transfer of cyclobenzaprine into human milk in low amounts, but these data cannot be confirmed.
There are no data on the effects of cyclobenzaprine on a breastfed infant, or the effects on milk production. The developmental and health
benefits of breastfeeding should be considered along with the mother’s clinical need for TONMYA and any potential adverse effects
on the breastfed child from TONMYA or from the underlying maternal condition.
Pediatric
use: The safety and effectiveness of TONMYA have not been established.
Geriatric
patients: Of the total number of TONMYA-treated patients in the clinical trials in adult patients with fibromyalgia, none were 65 years
of age and older. Clinical trials of TONMYA did not include sufficient numbers of patients 65 years of age and older to determine whether
they respond differently from younger adult patients.
Hepatic
impairment: The recommended dosage of TONMYA in patients with mild hepatic impairment (HI) (Child Pugh A) is 2.8 mg once daily at bedtime,
lower than the recommended dosage in patients with normal hepatic function. The use of TONMYA is not recommended in patients with moderate
HI (Child Pugh B) or severe HI (Child Pugh C). Cyclobenzaprine exposure (AUC) was increased in patients with mild HI and moderate HI
compared to subjects with normal hepatic function, which may increase the risk of TONMYA-associated adverse reactions.
Please
see additional safety information in the full Prescribing Information. To report suspected adverse reactions, contact Tonix Medicines,
Inc. at 1-888-869-7633, or the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.