Robitussin CF Dosages: Your GoodRx Guide

If you've come down witha cold or the flu, you're likely looking for symptom relief. And tackling multiple symptoms with one medication may be more convenient for you. Perhaps you're consideringRobitussin CF, a popular over-the-counter (OTC) liquid cough syrup.

But Robitussin CF isn't just one medication; it's a line of medications. Each product in the line has differentactive ingredients. Do the different products have different instructions? Below, we'll discuss typical Robitussin CF dosages for each product in the line.

What's the typical Robitussin CF dosage for adults?

The typical Robitussin CF dosage for adults is 20 mL by mouth every 4 hours as needed. You shouldn't take more than 6 doses (120 mL) in 24 hours. But as we'll detail below, each Robitussin CF product has different active ingredients. It's a good idea to read theOTC labelof your selected product to know what it contains.

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Robitussin CF comes with a dose cup for you to use. Avoid using a household spoon to measure out medication. These are inaccurate and can cause you to take too much or not enough medication. If you lose the provided dose cup, ask your pharmacist about a replacement.

Good to know:Some Robitussin CF products contain the nasal decongestantphenylephrine. In September 2023, the FDA announced that oral phenylephrine is likely ineffective for nasal congestion. Phenylephrine isn't harmful, but there aremore effective nasal decongestantsavailable.

Robitussin CF Max dosage for adults Every 20 mL ofRobitussin CF Maxcontains:

• 650 mg ofacetaminophen(a pain reliever and fever reducer)
• 20 mg ofdextromethorphan(a cough suppressant)
• 400 mg ofguaifenesin(an expectorant)
• 10 mg of phenylephrine

The typical Robitussin CF Max dosage for adults is 20 mL by mouth every 4 hours as needed. Don't take more than 6 doses in 24 hours.

Robitussin Honey CF Max dosage for adults Each 20 mL ofRobitussin Honey CF Maxcontains:

• 650 mg of acetaminophen
• 20 mg of dextromethorphan

The typical Robitussin Honey CF Max dosage for adults is 20 mL by mouth every 4 hours as needed. Don't take more than 6 doses in 24 hours.

Good to know:Althoughhoneycan help to soothe a cough, the honey in Robitussin CF products is added for flavoring only.

Robitussin Honey CF Nighttime Max dosage for adults Each 20 mL ofRobitussin Honey CF Nighttime Maxcontains:

• 650 mg of acetaminophen
• 25 mg ofdiphenhydramine(an antihistamine that helps with runny nose and promotes sleep)

The typical Robitussin Honey CF Nighttime Max dosage for adults is 20 mL by mouth every 4 hours as needed. Don't take more than 6 doses in 24 hours.

What's the typical Robitussin CF dosage for children?

Adolescents age 12 and older can follow the adult Robitussin CF dosage instructions listed above. For kids under 12, there's a children's version of Robitussin CF available. You can safely give it to children age 4 and older.

Every 10 mL ofChildren's Robitussin CFcontains:

• 10 mg of dextromethorphan
• 100 mg of guaifenesin
• 5 mg of phenylephrine

Children's Robitussin CF dosages are based on a child's age (notbody weight). The dosage instructions for each age group are listed below:

• Age 12 and older:Give 20 mL by mouth every 4 hours as needed. Don't give more than 6 doses (120 mL) in 24 hours.
• Age 6 to 11:Give 10 mL by mouth every 4 hours as needed. Don't give more than 6 doses (60 mL) in 24 hours.
• Age 4 to 5:Give 5 mL by mouth every 4 hours as needed. Don't give more than 6 doses (30 mL) in 24 hours.
• Under 4 years old:The medication is not recommended.

Are there any dosage adjustments for health conditions?

For some medications, dosage adjustments are recommended if you have certain health conditions, such askidneyorliverdisease. This isn't the case for Robitussin CF. But there are people who may need to avoid it altogether. Usually, they have a greater risk for serious side effects when taking the medication.

Ask a healthcare professional before taking Robitussin CF if you:

• Arepregnantor breastfeeding
• Havediabetes
• Haveglaucoma
• Have a heart condition orhigh blood pressure
• Have liver disease
• Drink 3 or morealcoholicbeverages per day
• Have thyroid problems
• Trouble urinating due to anenlarged prostate gland
• Have excessive amounts of mucus with your cough
• Take other medications that containacetaminophenor anantihistamine, such as diphenhydramine
• Takemedications that cause drowsiness, such as sleep aids or opioid pain relievers
• Have taken a monoamine oxidase inhibitor, such as selegiline (Emsam, Zelapar), in the last 2 weeks
• Have a long-term cough caused by smoking, asthma, or chronic obstructive pulmonary disease

This isn't a complete list of people who should speak with a healthcare professional before taking Robitussin CF. It's a good idea to check with your healthcare team beforehand if you take any medications or have any health conditions. They can tell you if you can safely take Robitussin CF.

What should you do if you take too much Robitussin CF?

Taking an extra dose of Robitussin CF by accident likely won't cause serious harm for most people. But you may experience more side effects. Each active ingredient has different side effects. But drowsiness, dizziness, and stomach upset are common.

Taking an excessive amount of Robitussin CF can be more concerning. Too much acetaminophen can contribute toliver damage. Too much phenylephrine can raise yourblood pressureor heart rate. Andtoo much dextromethorphanor diphenhydraminecan causehallucinations, seizures, or even death.

If you'reunsurewhether you've taken too much Robitussin CF, contact a health professional or callPoison Controlat1-800-222-1222for guidance. If youknowyou've taken too much, seek medical attention right away at the ER or call 911.

How to save on Robitussin CF

There are ways to save on Robitussin CF products, which are available as brand-name and generic medications. If a healthcare professional writes you a prescription for Robitussin CF, GoodRx mayhelp you saveover 20% off the average retail price. The price of a 118 mL bottle of Robitussin CF at certain pharmacies may costas low as $9.07with a free GoodRx coupon.

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Robitussin CF is a line of over-the-counter combination cold medications. The typical adult Robitussin CF dosage is 20 mL by mouth every 4 hours as needed. Don't take more than 6 doses (120 mL) in 24 hours. Adolescents age 12 and older can also follow this dosage.

Children's Robitussin CF dosages vary depending on a child's age. But kids who are age 4 or older can take an age-appropriate dose every 4 hours as needed. They shouldn't take more than 6 doses in 24 hours. Don't give Robitussin CF to children under age 4.

Talk to your healthcare team if you have other questions regarding Robitussin CF dosages.

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