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Serynth Fast Relief Nasal

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Active ingredient
Naphazoline Hcl 0.05 g/100 mL
Other brand names
Dosage form
Spray
Route
Nasal
Prescription status
OTC (over the counter)
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2026
Label revision date
February 8, 2026
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Naphazoline Hcl 0.05 g/100 mL
Other brand names
Dosage form
Spray
Route
Nasal
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2026
Label revision date
February 8, 2026
Manufacturer
Jiangxi Yudexi Pharmaceutical Co. , LTD
Registration number
M012
NDC root
85248-099
Drug Information (PDF)
Prescribing information, PDF file
Packaging Info
Packaging & NDC Codes

If you are a healthcare professional or from the pharmaceutical industry please visit this version.

If you are a consumer or patient please visit this version.

Drug Overview

This medication is designed to temporarily relieve nasal congestion caused by colds, hay fever, or other upper respiratory allergies. It also helps alleviate sinus congestion and pressure, making it easier for you to breathe and feel more comfortable. If you're experiencing these symptoms, this drug may provide the relief you need.

Uses

If you're dealing with nasal congestion from a cold, hay fever, or other upper respiratory allergies, this medication can help provide temporary relief. It also works to ease sinus congestion and pressure, making it easier for you to breathe comfortably.

You can rely on this treatment to help alleviate those bothersome symptoms, allowing you to feel more at ease during your recovery.

Dosage and Administration

When using this medication, you should apply 2 or 3 sprays in each nostril. If you are an adult or a child aged 6 years and older, make sure to have adult supervision during use. It’s important to space out the doses, so you should not use it more often than every 10 to 12 hours.

Additionally, be mindful not to exceed 2 doses within a 24-hour period. Following these guidelines will help ensure that you use the medication safely and effectively.

What to Avoid

It's important to use this product safely to avoid potential risks. You should never exceed the recommended dosage or use it for more than three days. Always follow the directions provided. Additionally, sharing this container with others can lead to the spread of infection, so it's best to keep it for your personal use only.

If you have children, please note that this product should not be used in children under 2 years of age. Frequent or prolonged use may lead to worsening nasal congestion, so be mindful of how often you use it.

Side Effects

If you have heart disease, high blood pressure, thyroid disease, diabetes, or difficulty urinating due to an enlarged prostate, it's important to consult your doctor before using this medication.

Should your symptoms continue despite using the medication, please stop taking it and reach out to your healthcare provider for further guidance.

Warnings and Precautions

Before using this medication, it’s important to consult your doctor if you have any of the following conditions: heart disease, high blood pressure, thyroid disease, diabetes, or difficulty urinating due to an enlarged prostate gland. These conditions may affect how the medication works for you.

If your symptoms do not improve, you should stop taking the medication and reach out to your doctor for further advice. Additionally, if the medication is accidentally swallowed, seek emergency medical help or contact a Poison Control Center immediately. Your safety is a priority, so don’t hesitate to get the help you need.

Overdose

It appears that there is no specific information available regarding overdosage for this medication. However, it's important to be aware of the general signs of an overdose, which can include symptoms like extreme drowsiness, confusion, or difficulty breathing. If you suspect an overdose, it is crucial to seek immediate medical help.

In case of an emergency, you should call your local emergency number or go to the nearest hospital. Always keep your medications in their original packaging and follow the prescribed dosage to minimize the risk of an overdose. If you have any concerns or questions about your medication, don’t hesitate to reach out to your healthcare provider for guidance.

Pregnancy Use

If you are pregnant or breastfeeding, it’s important to consult your doctor before using this medication. Your healthcare provider can help you understand any potential risks and ensure that you make the safest choice for you and your baby. Always prioritize open communication with your doctor regarding your health during this time.

Lactation Use

If you are pregnant or breastfeeding, it's important to consult your doctor before using this medication. They can provide guidance on any potential risks and help ensure the safety of both you and your baby. Always prioritize open communication with your healthcare provider regarding your health and any medications you may consider while nursing.

Pediatric Use

It's important to be cautious when using this medication for children. You should not use it in children under 2 years old. If your child is between 2 and 6 years old, it's best to consult with a doctor before using it.

For children aged 6 years and older, you can administer 2 or 3 sprays in each nostril, but make sure to do this no more than every 10 to 12 hours. Additionally, do not exceed 2 doses within a 24-hour period. Always ensure that an adult supervises the use in older children.

Geriatric Use

When it comes to using this medication in older adults, there is no specific information available about dosage adjustments, safety concerns, or special precautions. This means that if you or a loved one is an older adult, it’s important to consult with a healthcare provider before starting the medication. They can help determine the best approach based on individual health needs and any other medications being taken. Always prioritize open communication with your healthcare team to ensure safe and effective treatment.

Renal Impairment

If you have kidney problems, it's important to know that there are no specific guidelines or dosage adjustments mentioned for your condition in the available information. This means that the usual recommendations for monitoring or safety considerations related to renal impairment (kidney issues) are not provided.

Always consult your healthcare provider for personalized advice and to ensure that any medications you take are safe and appropriate for your kidney health. They can help you understand how your condition may affect your treatment plan.

Hepatic Impairment

If you have liver problems, it's important to know that the information provided does not include specific guidelines for dosage adjustments, special monitoring, or precautions related to your condition. This means that there are no tailored recommendations for how the medication may affect you differently due to your liver health.

Always consult your healthcare provider for personalized advice and to ensure that any treatment plan is safe and effective for your specific situation. They can help determine the best approach based on your liver function and overall health.

Drug Interactions

It's important to have open conversations with your healthcare provider about any medications or tests you may be taking. While there are no specific drug interactions or laboratory test interactions noted for this medication, your healthcare provider can help ensure that everything you are taking works well together and is safe for you.

Always feel free to ask questions and share your complete list of medications and any lab tests you may be undergoing. This way, you can receive the best possible care tailored to your needs.

Storage and Handling

To ensure the safety and effectiveness of your product, it’s important to store it at a temperature that does not exceed 25°C (77°F). Keeping it within this temperature range helps maintain its quality and performance.

When handling the product, make sure to follow any specific instructions provided to avoid contamination or damage. Always ensure that your hands and any surfaces are clean to maintain a sterile environment. Proper storage and careful handling are key to ensuring the product works as intended.

Additional Information

You should use this medication nasally, with the recommended dosage being 2 or 3 sprays in each nostril for adults and children aged 6 years and older, under adult supervision. Make sure to wait at least 10 to 12 hours between doses, and do not exceed 2 doses in a 24-hour period.

If you are pregnant or breastfeeding, it's important to consult a healthcare professional before using this medication. Additionally, this medication is not recommended for children under 2 years old.

FAQ

What does this drug do?

This drug temporarily relieves nasal congestion due to a cold, hay fever, or other upper respiratory allergies, as well as sinus congestion and pressure.

Who can use this drug?

Adults and children 6 years and older can use this drug with adult supervision. It should not be used in children under 2 years.

What is the recommended dosage?

The recommended dosage for adults and children 6 years and older is 2 or 3 sprays in each nostril, not more often than every 10 to 12 hours, and do not exceed 2 doses in 24 hours.

Are there any warnings before using this drug?

Yes, ask a doctor before use if you have heart disease, high blood pressure, thyroid disease, diabetes, or trouble urinating due to an enlarged prostate gland.

What should I do if symptoms persist?

Stop use and ask a doctor if symptoms persist.

Can I use this drug if I am pregnant or breastfeeding?

You should ask a doctor if you are pregnant or breastfeeding before using this drug.

What should I avoid while using this drug?

Do not exceed the recommended dosage, do not use for more than 3 days, and do not share the container with others to prevent spreading infection.

What should I do in case of an emergency?

If swallowed, get medical help or contact a Poison Control Center right away.

Packaging Info

Below are the non-prescription pack sizes of Serynth Fast Relief Nasal (naphazoline hcl 0.05% fast relief nasal). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Serynth Fast Relief Nasal.
Details

Drug Information (PDF)

This file contains official product information for Serynth Fast Relief Nasal, including active ingredients, dosage, warnings, and labeling as submitted by the manufacturer for OTC distribution.

View product document (PDF)

Description

No description information is available for the specified drug.

Uses and Indications

This drug is indicated for the temporary relief of nasal congestion associated with colds, hay fever, or other upper respiratory allergies. Additionally, it provides temporary relief from sinus congestion and pressure.

There are no teratogenic or nonteratogenic effects associated with this drug.

Dosage and Administration

For adults and children aged 6 years and older, the recommended dosage is 2 to 3 sprays in each nostril. Administration should not occur more frequently than every 10 to 12 hours. It is important to note that the total number of doses should not exceed 2 doses within a 24-hour period. Adult supervision is required for children in this age group during administration.

Contraindications

Use of this product is contraindicated in the following situations:

  • Patients should not exceed the recommended dosage, as this may lead to adverse effects.

  • The product should not be used for more than 3 days; prolonged use may result in worsening nasal congestion.

  • The use of this container by more than one person is contraindicated due to the risk of spreading infection.

  • This product is not indicated for use in children under 2 years of age.

Warnings and Precautions

Patients should consult a healthcare professional prior to use if they have a history of any of the following conditions: heart disease, high blood pressure, thyroid disease, diabetes, or difficulty urinating due to an enlarged prostate gland. These conditions may increase the risk of adverse effects and require careful consideration before initiating treatment.

In the event that symptoms persist despite use, patients are advised to discontinue the medication and seek medical advice promptly. This precaution is essential to ensure that any underlying issues are addressed appropriately.

If the product is ingested, immediate medical assistance should be sought, or contact with a Poison Control Center is recommended. Timely intervention is critical in such cases to mitigate potential health risks associated with ingestion.

Side Effects

Patients should be advised to consult a healthcare professional prior to use if they have a history of heart disease, high blood pressure, thyroid disease, diabetes, or difficulty urinating due to an enlarged prostate gland.

In the event that symptoms persist, patients are instructed to discontinue use and seek medical advice. This precaution is essential to ensure the safety and well-being of individuals with underlying health conditions.

Drug Interactions

There are currently no documented drug interactions associated with this medication. Additionally, there is no information available regarding interactions with laboratory tests. As such, no specific recommendations for dosage adjustments or monitoring are warranted at this time.

Packaging & NDC

Below are the non-prescription pack sizes of Serynth Fast Relief Nasal (naphazoline hcl 0.05% fast relief nasal). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Serynth Fast Relief Nasal.
Details

Pediatric Use

Pediatric patients under 2 years of age should not use this medication. For children aged 2 to under 6 years, it is advised to consult a healthcare professional before use.

In patients 6 years and older, the recommended dosage is 2 or 3 sprays in each nostril, administered no more frequently than every 10 to 12 hours. It is important not to exceed 2 doses within a 24-hour period. Adult supervision is required for this age group during administration.

Geriatric Use

Elderly patients may not have specific information regarding the use of this medication, including dosage adjustments, safety concerns, or special precautions. Therefore, healthcare providers should exercise caution when prescribing this medication to geriatric patients. It is advisable to monitor these patients closely for any adverse effects or changes in therapeutic response, given the lack of targeted data for this population.

Pregnancy

Pregnant patients and those who are breastfeeding should consult a healthcare professional prior to using this medication. It is essential to evaluate the potential risks and benefits associated with the use of this drug during pregnancy and lactation. The safety of this medication in pregnant women has not been established, and therefore, caution is advised.

Lactation

Lactating mothers are advised to consult a healthcare professional prior to using this medication if they are breastfeeding. There is currently no available data regarding the excretion of this medication in human breast milk or its effects on breastfed infants. Therefore, caution is recommended when administering this medication to lactating mothers.

Renal Impairment

Patients with renal impairment have not been specifically addressed in the available data regarding dosage adjustments, special monitoring, or safety considerations. Therefore, healthcare professionals should exercise caution when prescribing this medication to patients with reduced kidney function, as the lack of information necessitates careful clinical judgment and monitoring.

Hepatic Impairment

Patients with hepatic impairment have not been specifically studied in relation to the use of this medication. Consequently, there are no established dosage adjustments, special monitoring requirements, or precautions outlined for individuals with compromised liver function. It is recommended that healthcare providers exercise caution when prescribing this medication to patients with hepatic impairment, given the lack of data on its safety and efficacy in this population. Regular monitoring of liver function may be prudent in these cases, although specific parameters are not defined in the available information.

Overdosage

In the absence of specific overdosage information, it is essential for healthcare professionals to remain vigilant and prepared for potential scenarios involving overdose.

Healthcare providers should be aware that the clinical presentation of an overdose may vary depending on the substance involved and the individual patient’s characteristics. Symptoms of overdose can range from mild to severe and may include altered mental status, cardiovascular instability, respiratory distress, and gastrointestinal disturbances.

In the event of suspected overdosage, immediate medical evaluation is recommended. Healthcare professionals should assess the patient's vital signs and conduct a thorough clinical examination. Supportive care should be initiated as necessary, which may include airway management, intravenous fluids, and monitoring of vital parameters.

If specific antidotes or treatments are available for the substance involved, they should be administered according to established protocols. Consultation with a poison control center or toxicology expert may also be warranted to guide management decisions.

It is crucial to document all findings and interventions in the patient's medical record and to report any adverse events to the appropriate regulatory authorities as required.

Nonclinical Toxicology

No teratogenic or non-teratogenic effects have been reported in the available nonclinical studies. Additionally, there is no information regarding animal pharmacology and toxicology. The absence of data limits the understanding of the potential toxicological profile in nonclinical settings.

Postmarketing Experience

No postmarketing experience details are available in the insert text.

Patient Counseling

Patients should be advised to seek immediate medical assistance or contact a Poison Control Center if the product is swallowed. It is important to emphasize that patients must not exceed the recommended dosage and should not use the product for more than three days. They should use the product only as directed, as frequent or prolonged use may lead to a recurrence or worsening of nasal congestion.

Patients may experience temporary discomfort, which can include symptoms such as burning, stinging, sneezing, or increased nasal discharge. Healthcare providers should inform patients that using this container by more than one person may increase the risk of spreading infection.

Additionally, patients should be instructed to stop using the product and consult a doctor if their symptoms persist.

Storage and Handling

The product is supplied in various package configurations, with specific NDC numbers available for identification. It is essential to store the product at a temperature not exceeding 25°C to maintain its integrity and efficacy. Proper storage conditions should be observed to ensure optimal performance, and any special handling requirements must be adhered to as specified in the product guidelines.

Additional Clinical Information

The medication is administered via the nasal route, with a recommended dosage of 2 or 3 sprays in each nostril for adults and children aged 6 years and older, under adult supervision. Dosing should not occur more frequently than every 10 to 12 hours, and the total daily limit is 2 doses within a 24-hour period.

Clinicians should counsel patients to consult a healthcare professional if they are pregnant or breastfeeding before using the medication. Additionally, it is advised that the medication is not intended for use in children aged 2 to under 6 years. No further information is available regarding laboratory tests, abuse potential, or postmarketing experiences.

Drug Information (PDF)

This file contains official product information for Serynth Fast Relief Nasal, including active ingredients, dosage, warnings, and labeling as submitted by the manufacturer for OTC distribution.

View product document (PDF)

Data Generation & Sources

This page was automatically generated and is maintained by the AllDrugs AI Data-Science Team. It was built from the FDA Structured Product Label (DailyMed) for Serynth Fast Relief Nasal, retrieved by a validated AI data-extraction workflow.

All FDA-listed dosage forms and strengths are shown in the Packaging & NDC Codes section above. Regulatory status appears in the Summary Information panel above and was verified in the FDA National Drug Code directory and the NSDE NDC Directory daily file.

Note: an automated daemon monitors NSDE checksums; when the record for this NDC changes, the new file is pulled instantly and this page is refreshed.

No human clinician has reviewed this version.

Learn more in our Editorial Policy

Last AI update:

Primary FDA sources:

Orange Book data shown on this page are limited to Regulatory Status (Rx), Established Pharmacologic Class (EPC), and Mechanism of Action (MoA).

Regulatory data notice: Information on this page is reproduced verbatim from FDA public databases (NSDE, Orange Book, Purple Book, DailyMed SPL). NDA/ANDA drugs are FDA-approved, BLA biologics are FDA-licensed. Inclusion alone does not guarantee current market availability or imply FDA endorsement.

Medical disclaimer: This AI-generated content is provided for educational purposes only and does not constitute medical advice. Always consult a licensed healthcare professional for diagnosis or treatment decisions.