NAYZILAM Drug Patent Profile
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When do Nayzilam patents expire, and when can generic versions of Nayzilam launch?
Nayzilam is a drug marketed by Ucb Inc and is included in one NDA. There are four patents protecting this drug and one Paragraph IV challenge.
The generic ingredient in NAYZILAM is midazolam. There are nine drug master file entries for this compound. Three suppliers are listed for this compound. Additional details are available on the midazolam profile page.
DrugPatentWatch® Generic Entry Outlook for Nayzilam
By analyzing the patents and regulatory protections it appears that the earliest date
for generic entry will be May 17, 2026. This may change due to patent challenges or generic licensing.
There have been two patent litigation cases involving the patents protecting this drug, indicating strong interest in generic launch. Recent data indicate that 63% of patent challenges are decided in favor of the generic patent challenger and that 54% of successful patent challengers promptly launch generic drugs.
There are two tentative approvals for the generic drug (midazolam), which indicates the potential for near-term generic launch.
Indicators of Generic Entry
Summary for NAYZILAM
US Patents: | 4 |
Applicants: | 1 |
NDAs: | 1 |
Finished Product Suppliers / Packagers: | 1 |
Raw Ingredient (Bulk) Api Vendors: | 42 |
Patent Applications: | 4,179 |
Formulation / Manufacturing: | see details |
Drug Prices: | Drug price information for NAYZILAM |
Patent Litigation and PTAB cases: | See patent lawsuits and PTAB cases for NAYZILAM |
What excipients (inactive ingredients) are in NAYZILAM? | NAYZILAM excipients list |
DailyMed Link: | NAYZILAM at DailyMed |


DrugPatentWatch® Estimated Loss of Exclusivity (LOE) Date for NAYZILAM
Generic Entry Date for NAYZILAM*:
Constraining patent/regulatory exclusivity:
ACUTE TREATMENT OF INTERMITTENT, STEREOTYPIC EPISODES OF FREQUENT SEIZURE ACTIVITY (I.E., SEIZURE CLUSTERS, ACUTE REPETITIVE SEIZURES) THAT ARE DISTINCT FROM A PATIENT'S USUAL SEIZURE PATTERN IN PATIENTS WITH EPILEPSY 12 YEARS OF AGE AND OLDER NDA:
Dosage:
SPRAY;NASAL |
*The generic entry opportunity date is the latter of the last compound-claiming patent and the last regulatory exclusivity protection. Many factors can influence early or later generic entry. This date is provided as a rough estimate of generic entry potential and should not be used as an independent source.
Pharmacology for NAYZILAM
Drug Class | Benzodiazepine |
Anatomical Therapeutic Chemical (ATC) Classes for NAYZILAM
US Patents and Regulatory Information for NAYZILAM
NAYZILAM is protected by four US patents and two FDA Regulatory Exclusivities.
Based on analysis by DrugPatentWatch, the earliest date for a generic version of NAYZILAM is ⤷ Try a Trial.
This potential generic entry date is based on ACUTE TREATMENT OF INTERMITTENT, STEREOTYPIC EPISODES OF FREQUENT SEIZURE ACTIVITY (I.E., SEIZURE CLUSTERS, ACUTE REPETITIVE SEIZURES) THAT ARE DISTINCT FROM A PATIENT'S USUAL SEIZURE PATTERN IN PATIENTS WITH EPILEPSY 12 YEARS OF AGE AND OLDER.
Generics may enter earlier, or later, based on new patent filings, patent extensions, patent invalidation, early generic licensing, generic entry preferences, and other factors.
Patents protecting NAYZILAM
Methods and compositions for the delivery of a therapeutic agent
Patent Number: ⤷ Try a Trial
Patent Expiration: ⤷ Try a Trial
Patented Use: ACUTE TREATMENT OF INTERMITTENT, STEREOTYPIC EPISODES OF FREQUENT SEIZURE ACTIVITY (I.E., SEIZURE CLUSTERS, ACUTE REPETITIVE SEIZURES) THAT ARE DISTINCT FROM A PATIENT'S USUAL SEIZURE PATTERN IN PATIENTS WITH EPILEPSY 12 YEARS OF AGE AND OLDER
Methods and compositions for the delivery of a therapeutic agent
Patent Number: ⤷ Try a Trial
Patent Expiration: ⤷ Try a Trial
Methods and compositions for the delivery of a therapeutic agent
Patent Number: ⤷ Try a Trial
Patent Expiration: ⤷ Try a Trial
Patented Use: ACUTE TREATMENT OF INTERMITTENT, STEREOTYPIC EPISODES OF FREQUENT SEIZURE ACTIVITY (I.E., SEIZURE CLUSTERS, ACUTE REPETITIVE SEIZURES) THAT ARE DISTINCT FROM A PATIENT'S USUAL SEIZURE PATTERN IN PATIENTS WITH EPILEPSY 12 YEARS OF AGE AND OLDER
Methods and systems for the delivery of a therapeutic agent
Patent Number: ⤷ Try a Trial
Patent Expiration: ⤷ Try a Trial
Patented Use: ACUTE TREATMENT OF INTERMITTENT, STEREOTYPIC EPISODES OF FREQUENT SEIZURE ACTIVITY (I.E., SEIZURE CLUSTERS, ACUTE REPETITIVE SEIZURES) THAT ARE DISTINCT FROM A PATIENT'S USUAL SEIZURE PATTERN IN PATIENTS WITH EPILEPSY 12 YEARS OF AGE AND OLDER
FDA Regulatory Exclusivity protecting NAYZILAM
NEW PRODUCT
Exclusivity Expiration: ⤷ Try a Trial
ACUTE TREATMENT OF INTERMITTENT, STEREOTYPIC EPISODES OF FREQUENT SEIZURE ACTIVITY (I.E., SEIZURE CLUSTERS, ACUTE REPETITIVE SEIZURES) THAT ARE DISTINCT FROM A PATIENT'S USUAL SEIZURE PATTERN IN PATIENTS WITH EPILEPSY 12 YEARS OF AGE AND OLDER
Exclusivity Expiration: ⤷ Try a Trial
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Exclusivity Expiration |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ucb Inc | NAYZILAM | midazolam | SPRAY;NASAL | 211321-001 | May 17, 2019 | RX | Yes | Yes | ⤷ Try a Trial | ⤷ Try a Trial | Y | ⤷ Try a Trial | |||
Ucb Inc | NAYZILAM | midazolam | SPRAY;NASAL | 211321-001 | May 17, 2019 | RX | Yes | Yes | ⤷ Try a Trial | ⤷ Try a Trial | Y | ⤷ Try a Trial | |||
Ucb Inc | NAYZILAM | midazolam | SPRAY;NASAL | 211321-001 | May 17, 2019 | RX | Yes | Yes | ⤷ Try a Trial | ⤷ Try a Trial | Y | ⤷ Try a Trial | |||
>Applicant | >Tradename | >Generic Name | >Dosage | >NDA | >Approval Date | >TE | >Type | >RLD | >RS | >Patent No. | >Patent Expiration | >Product | >Substance | >Delist Req. | >Exclusivity Expiration |
EU/EMA Drug Approvals for NAYZILAM
Company | Drugname | Inn | Product Number / Indication | Status | Generic | Biosimilar | Orphan | Marketing Authorisation | Marketing Refusal |
---|---|---|---|---|---|---|---|---|---|
Laboratorios Lesvi S.L. | Buccolam | midazolam | EMEA/H/C/002267 Treatment of prolonged, acute, convulsive seizures in infants, toddlers, children and adolescents (from three months to less than 18 years).Buccolam must only be used by parents / carers where the patient has been diagnosed to have epilepsy.For infants between three and six months of age, treatment should be in a hospital setting where monitoring is possible and resuscitation equipment is available. |
Authorised | no | no | no | 2011-09-04 | |
>Company | >Drugname | >Inn | >Product Number / Indication | >Status | >Generic | >Biosimilar | >Orphan | >Marketing Authorisation | >Marketing Refusal |