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Nighttime Cough

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Active ingredients
  • Doxylamine Succinate 12.5 mg/30 mL
  • Dextromethorphan Hydrobromide 30 mg/30 mL
Other brand names
Drug classes
Antihistamine, Sigma-1 Agonist, Uncompetitive N-methyl-D-aspartate Receptor Antagonist
Dosage form
Liquid
Route
Oral
Prescription status
OTC (over the counter)
Marketed in the U.S.
Since 2024
Label revision date
December 16, 2025
Active ingredients
  • Doxylamine Succinate 12.5 mg/30 mL
  • Dextromethorphan Hydrobromide 30 mg/30 mL
Other brand names
Drug classes
Antihistamine, Sigma-1 Agonist, Uncompetitive N-methyl-D-aspartate Receptor Antagonist
Dosage form
Liquid
Route
Oral
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2024
Label revision date
December 16, 2025
Manufacturer
Walgreens
Registration number
M012
NDC root
0363-4990

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Drug Overview

DExtromethorphan HBr and Doxylamine Succinate is a combination medication designed to help relieve nighttime cough and other cold symptoms. Dextromethorphan is a cough suppressant that works by reducing the urge to cough, particularly due to minor throat and bronchial irritation. Doxylamine is an antihistamine that can help alleviate symptoms like a runny nose and sneezing, making it easier for you to rest when you're feeling under the weather.

This medication is suitable for individuals aged 12 years and older and comes in a pleasant cherry flavor. It is important to use it as directed to effectively manage your cold symptoms and promote a more comfortable night's sleep.

Uses

If you're dealing with a cold, this medication can help temporarily relieve some of your symptoms. It works to ease your cough caused by minor irritation in your throat and bronchial tubes, as well as reduce a runny nose and sneezing.

You can feel more comfortable while your body fights off the cold, allowing you to go about your day with less discomfort. Remember, this medication is designed to help with these specific symptoms, so it's important to use it as directed.

Dosage and Administration

When using this medication, it's important to follow the instructions carefully to ensure your safety and effectiveness. You should take 30 mL (milliliters) every 6 hours if you are an adult or a child aged 12 years and older. However, make sure not to exceed 4 doses within a 24-hour period.

To measure your dose accurately, always use the dosing cup that comes with the product. Avoid using any other measuring devices, as this can lead to incorrect dosing. Keep the dosing cup with the medication to ensure you have it on hand each time you need to take a dose. If you are caring for a child under 12 years of age, do not use this medication for them. Always take the medication only as directed to ensure your safety.

What to Avoid

You should not use this product if you are currently taking a prescription monoamine oxidase inhibitor (MAOI), which is a type of medication used for depression, psychiatric conditions, or Parkinson’s disease. Additionally, you must wait at least two weeks after stopping an MAOI before using this product. If you're unsure whether your prescription includes an MAOI, please consult your doctor or pharmacist.

While using this product, it's important to avoid alcoholic drinks, as alcohol can increase drowsiness. Combining this product with alcohol, sedatives, or tranquilizers may lead to heightened drowsiness, which can be dangerous. Always prioritize your safety and well-being by following these guidelines.

Side Effects

Using this product may lead to some side effects. You might experience excitability, particularly if you are a child, or marked drowsiness. It's important to avoid alcohol while using this product, as it can increase drowsiness. Be cautious when driving or operating machinery, especially if you are also taking sedatives or tranquilizers, as these can further enhance drowsiness.

If your cough lasts more than seven days, returns, or is accompanied by fever, rash, or a persistent headache, you should stop using the product and consult a doctor, as these could indicate a more serious condition. Additionally, consult a healthcare professional before use if you have glaucoma, a cough with excessive mucus, breathing issues, or difficulty urinating due to an enlarged prostate. Avoid using this product if you are currently taking a monoamine oxidase inhibitor (MAOI) or have taken one in the past two weeks.

Warnings and Precautions

You should not use this product if you are currently taking a prescription monoamine oxidase inhibitor (MAOI) for depression, psychiatric conditions, or Parkinson’s disease, or if you have stopped taking an MAOI within the last two weeks. If you are unsure whether your medication contains an MAOI, please consult your doctor or pharmacist.

Before using this product, it’s important to talk to your doctor if you have glaucoma, a cough with excessive mucus, breathing issues related to smoking or conditions like asthma or chronic bronchitis, or difficulty urinating due to an enlarged prostate. Be cautious if you are taking sedatives or tranquilizers, as this product may cause excitability, especially in children, and can lead to significant drowsiness. Avoid alcohol while using this product, and be careful when driving or operating machinery.

If you experience an overdose, seek emergency medical help immediately or contact a Poison Control Center at 1-800-222-1222. You should stop using this product and call your doctor if your cough lasts more than 7 days, returns, or is accompanied by fever, rash, or a persistent headache, as these may indicate a more serious condition.

Overdose

If you suspect an overdose, it’s crucial to seek medical help immediately. You can contact a Poison Control Center at 1-800-222-1222 for guidance. Signs of an overdose can vary, but they may include unusual drowsiness, confusion, or difficulty breathing.

Don’t wait to see if symptoms improve; getting prompt medical attention is essential for your safety. Always keep emergency contact information handy and be aware of the signs of overdose to act quickly if needed.

Pregnancy Use

If you are pregnant or breastfeeding, it’s important to consult with a healthcare professional before using this medication. They can provide guidance on whether it’s safe for you and your baby. Always prioritize your health and the health of your child by seeking expert advice.

Lactation Use

If you are pregnant or breastfeeding, it’s important to consult with a healthcare professional before using any medication. This ensures that you understand any potential risks and can make informed decisions about your health and the health of your baby. Always prioritize open communication with your doctor regarding your breastfeeding journey.

Pediatric Use

It's important to be cautious when considering this medication for children. If your child is under 12 years old, you should not use this product. For those aged 12 and older, the recommended dosage is 30 mL every 6 hours.

Be aware that using this medication may cause excitability, particularly in children, and it can also lead to significant drowsiness. Always keep this product out of reach of children to ensure their safety.

Geriatric Use

While there is no specific information available about the use of this medication in older adults, it’s important to approach any new treatment with caution. If you or a loved one is an older adult, be sure to discuss any potential risks or concerns with your healthcare provider. They can help determine the best approach, considering factors like overall health and any other medications being taken. Always prioritize safety and open communication with your medical team.

Renal Impairment

If you have kidney problems, it's important to know that the drug insert does not provide specific information about dosage adjustments, special monitoring, or safety considerations for your condition. This means that there are no tailored guidelines for how this medication may affect you if your kidneys are not functioning properly.

Always consult your healthcare provider for personalized advice and to ensure that any medication you take is safe and appropriate for your kidney health. They can help monitor your condition and make any necessary adjustments to your treatment plan.

Hepatic Impairment

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

Always consult your healthcare provider for personalized advice and to discuss any concerns you may have regarding your liver condition and the use of this medication. They can help ensure that you receive the safest and most effective treatment.

Drug Interactions

It's important to be cautious when taking certain medications together. For instance, you should avoid using dextromethorphan if you are currently taking a prescription monoamine oxidase inhibitor (MAOI) or for two weeks after stopping an MAOI, as this combination can lead to serious interactions.

Additionally, if you are using doxylamine succinate, be aware that alcohol, sedatives, and tranquilizers can increase drowsiness. This means you should be careful with activities that require you to be alert, like driving. Always discuss your medications and any potential interactions with your healthcare provider to ensure your safety and well-being.

Storage and Handling

To ensure the best performance of your product, store it at a temperature between 20-25ºC (68-77ºF). It's important to avoid refrigeration, as this can affect its effectiveness. When handling the product, make sure to do so in a clean environment to maintain its integrity and safety. Following these guidelines will help you use the product safely and effectively.

Additional Information

You should take this medication orally, with the recommended dose for adults and children aged 12 years and older being 30 mL every 6 hours. If your child is under 12 years old, do not use this medication.

If you are pregnant or breastfeeding, it's important to consult a healthcare professional before using this product. Always keep it out of reach of children. In the event of an overdose, seek medical help immediately or contact a Poison Control Center at 1-800-222-1222.

FAQ

What is Dextromethorphan HBr / Doxylamine Succinate used for?

It is used as a nighttime cough suppressant and antihistamine to temporarily relieve cold symptoms such as cough due to minor throat and bronchial irritation, runny nose, and sneezing.

Who can use this medication?

This medication is intended for adults and children aged 12 years and older. Children under 12 years of age should not use it.

What is the recommended dosage for adults and children over 12?

The recommended dosage is 30 mL every 6 hours, with a maximum of 4 doses in any 24-hour period.

Are there any warnings associated with this medication?

Do not use this product if you are taking a prescription monoamine oxidase inhibitor (MAOI) or for 2 weeks after stopping an MAOI. Consult a doctor or pharmacist if unsure.

What should I do if I experience side effects?

If you experience marked drowsiness, excitability (especially in children), or if your cough lasts more than 7 days, consult a doctor.

Can I drink alcohol while using this product?

You should avoid alcoholic drinks while using this product, as alcohol may increase drowsiness.

What should I do in case of an overdose?

In case of overdose, seek medical help or contact a Poison Control Center immediately at 1-800-222-1222.

Is it safe to use this medication during pregnancy or breastfeeding?

If you are pregnant or breastfeeding, consult a health professional before using this medication.

How should I store this medication?

Store the medication between 20-25ºC (68-77ºF) and do not refrigerate.

Packaging Info

Below are the non-prescription pack sizes of Nighttime Cough (dextromethorphan hbr, doxylamine succinate). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Nighttime Cough.
Details

Drug Information (PDF)

This file contains official product information for Nighttime Cough, 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 cold symptoms, including cough due to minor throat and bronchial irritation, as well as runny nose and sneezing.

There are no teratogenic effects associated with this drug. Additionally, no nonteratogenic effects have been reported.

Dosage and Administration

Adults and children aged 12 years and older are advised to take 30 mL every 6 hours as needed. It is imperative that no more than 4 doses are taken within a 24-hour period. For accurate dosing, the provided dosing cup must be used; no other dosing devices should be employed. The dosing cup should be kept with the product to ensure proper measurement.

Children under 12 years of age should not use this medication. It is essential to take the medication only as directed to ensure safety and efficacy.

Contraindications

Use of this product is contraindicated in patients currently taking a prescription monoamine oxidase inhibitor (MAOI) or within 2 weeks of discontinuing an MAOI. MAOIs are commonly prescribed for depression, psychiatric or emotional conditions, or Parkinson’s disease. If there is uncertainty regarding the presence of an MAOI in a prescription medication, consultation with a healthcare professional is advised.

Additionally, while using this product, the consumption of alcoholic beverages is contraindicated, as alcohol, sedatives, and tranquilizers may enhance drowsiness.

Warnings and Precautions

Do not use this product if currently taking a prescription monoamine oxidase inhibitor (MAOI), which includes certain medications for depression, psychiatric or emotional conditions, or Parkinson’s disease. Additionally, it should not be used for at least 2 weeks after discontinuing an MAOI. If there is uncertainty regarding whether a prescription drug contains an MAOI, it is imperative to consult a healthcare professional, such as a doctor or pharmacist, prior to use.

Healthcare professionals should advise patients to seek medical guidance before using this product if they have any of the following conditions: glaucoma; a cough that produces excessive phlegm (mucus); a history of breathing problems or chronic cough associated with smoking, asthma, chronic bronchitis, or emphysema; or difficulty urinating due to an enlarged prostate gland. Furthermore, patients should consult a doctor or pharmacist if they are concurrently taking sedatives or tranquilizers.

While using this product, patients may experience excitability, particularly in children, and marked drowsiness. It is recommended to avoid alcoholic beverages, as well as to exercise caution when driving or operating machinery, due to the potential for increased drowsiness when combined with alcohol, sedatives, or tranquilizers.

In the event of an overdose, immediate medical assistance should be sought, or contact a Poison Control Center at 1-800-222-1222 without delay.

Patients should discontinue use and consult a healthcare provider if a cough persists for more than 7 days, recurs, or is accompanied by fever, rash, or a persistent headache, as these symptoms may indicate a serious underlying condition.

Side Effects

Patients using this product may experience a range of adverse reactions. Commonly reported side effects include excitability, particularly in children, and marked drowsiness. It is advised that patients avoid alcoholic beverages, as alcohol, sedatives, and tranquilizers may exacerbate drowsiness. Caution is recommended when driving a motor vehicle or operating machinery due to the potential for impaired alertness.

In clinical practice, patients are instructed to discontinue use and consult a healthcare professional if a cough persists for more than 7 days, recurs, or is accompanied by fever, rash, or a persistent headache, as these symptoms may indicate a serious underlying condition.

Before using this product, patients should seek medical advice if they have a history of glaucoma, a cough associated with excessive phlegm, or any breathing problems, including chronic cough related to smoking, asthma, chronic bronchitis, or emphysema. Additionally, individuals experiencing difficulty urinating due to an enlarged prostate gland should consult a healthcare provider prior to use.

Patients are also advised to inform their doctor or pharmacist if they are currently taking sedatives or tranquilizers, as these may interact with the product. Furthermore, the use of this product is contraindicated in patients who are currently taking a prescription monoamine oxidase inhibitor (MAOI) or have taken one within the past two weeks. If patients are uncertain whether their prescription medication contains an MAOI, they should seek clarification from a healthcare professional before using this product.

Drug Interactions

The concomitant use of dextromethorphan with prescription monoamine oxidase inhibitors (MAOIs) is contraindicated. Patients should not use dextromethorphan while taking an MAOI or for a period of two weeks following the discontinuation of an MAOI, as this combination may result in serious interactions.

In addition, caution is advised when using doxylamine succinate in conjunction with alcohol, sedatives, or tranquilizers. The combination may enhance drowsiness, which could impair the ability to perform tasks that require alertness. Monitoring for increased sedation is recommended, and dosage adjustments may be necessary based on the patient's response and the presence of these substances.

Packaging & NDC

Below are the non-prescription pack sizes of Nighttime Cough (dextromethorphan hbr, doxylamine succinate). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Nighttime Cough.
Details

Pediatric Use

Pediatric patients under 12 years of age should not use this product. For adolescents aged 12 years and older, the recommended dosage is 30 mL every 6 hours.

Healthcare professionals should be aware that excitability may occur, particularly in children, and marked drowsiness is a potential side effect. It is essential to keep this product out of reach of children to prevent accidental ingestion.

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 potential adverse effects or changes in efficacy, 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. The potential risks and benefits must be carefully considered in these populations to ensure the safety of both the mother and the fetus or infant.

Lactation

Lactating mothers are advised to consult a health professional prior to using this medication. 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 individuals.

Renal Impairment

Patients with renal impairment have no specific information regarding dosage adjustments, special monitoring, or safety considerations provided in the drug insert. Therefore, healthcare professionals should exercise caution when prescribing this medication to individuals with reduced kidney function, as the lack of data necessitates careful clinical judgment. Regular monitoring of renal function may be advisable in these patients to ensure safety and efficacy.

Hepatic Impairment

Patients with hepatic impairment have not been specifically studied in relation to 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 prescribing information.

Overdosage

In the event of an overdose, it is imperative to seek immediate medical assistance. Healthcare professionals are advised to contact a Poison Control Center at 1-800-222-1222 for guidance on managing the situation effectively.

Prompt intervention is crucial, as the symptoms of an overdose can vary significantly depending on the substance involved. Therefore, a thorough assessment and appropriate management strategies should be implemented as soon as possible to mitigate potential risks to the patient’s health.

Nonclinical Toxicology

No information is available regarding teratogenic or non-teratogenic effects. Additionally, there is no data provided concerning nonclinical toxicology, animal pharmacology, or toxicology.

Postmarketing Experience

Postmarketing experience has identified the following adverse reactions reported voluntarily or through surveillance programs: excitability, particularly in children, and marked drowsiness.

Patient Counseling

Healthcare providers should advise patients to seek immediate medical help or contact a Poison Control Center at 1-800-222-1222 in the event of an overdose. It is crucial to inform patients that this product should not be used concurrently with prescription monoamine oxidase inhibitors (MAOIs), which are medications prescribed for depression, psychiatric or emotional conditions, or Parkinson’s disease. Patients should also be cautioned against using this product for at least two weeks after discontinuing an MAOI. If patients are uncertain whether their prescription includes an MAOI, they should be encouraged to consult their doctor or pharmacist.

Patients should be instructed to discontinue use and consult a doctor if their cough persists for more than seven days, returns, or is accompanied by symptoms such as fever, rash, or a persistent headache, as these may indicate a serious condition.

When using this product, patients should be made aware that excitability may occur, particularly in children, and that marked drowsiness is a possible side effect. They should be advised to avoid alcoholic beverages, as well as to exercise caution when driving or operating machinery, given the potential for increased drowsiness when combined with alcohol, sedatives, or tranquilizers.

Additionally, patients should be encouraged to consult a doctor before using this product if they have glaucoma, a cough that produces excessive phlegm, a breathing problem or chronic cough associated with smoking, asthma, chronic bronchitis, or emphysema, or if they experience difficulty urinating due to an enlarged prostate gland. It is also recommended that patients ask a doctor or pharmacist before use if they are currently taking sedatives or tranquilizers.

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 range of 20-25ºC (68-77ºF). Refrigeration is not recommended, as it may compromise the integrity of the product. Proper handling and storage conditions must be adhered to in order to maintain the product's efficacy and safety.

Additional Clinical Information

The medication is administered orally, with a recommended dosage of 30 mL every 6 hours for adults and children aged 12 years and older. It is contraindicated for use in children under 12 years of age. Clinicians should advise patients to consult a health professional if they are pregnant or breastfeeding. Additionally, it is important to keep the medication out of reach of children and to seek immediate medical assistance or contact a Poison Control Center (1-800-222-1222) in the event of an overdose.

No further information is available regarding laboratory tests, abuse potential, or postmarketing experiences.

Drug Information (PDF)

This file contains official product information for Nighttime Cough, 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 Nighttime Cough, 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.

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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.