What Happens If I Overdose
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
The first signs of an acetaminophen overdose include loss of appetite, nausea, vomiting, stomach pain, sweating, and confusion or weakness. Later symptoms may include pain in your upper stomach, dark urine, and yellowing of your skin or the whites of your eyes.
How Should I Take Theraflu Severe Cold & Cough Nighttime
Use exactly as directed on the label, or as prescribed by your doctor. Cold or cough medicine is only for short-term use until your symptoms clear up.
Do not take more of this medicine than is recommended. An overdose of acetaminophen can damage your liver or cause death. Taking too much diphenhydramine can lead to serious heart problems, seizures, coma, or death.
Some brands of Theraflu Severe Cold & Cough Nighttime are not approved for use in anyone younger than 12 years old.
Always follow directions on the medicine label about giving this medicine to a child. Do not use the medicine only to make a child sleepy. Death can occur from the misuse of antihistamines in very young children.
Measure liquid medicine carefully. Use the dosing syringe provided, or use a medicine dose-measuring device .
Dissolve one packet of the powder in at least 4 ounces of water. Stir this mixture and drink all of it right away.
Call your doctor if you still have a sore throat after 2 days, or if you also have a fever, headache, nausea, vomiting, or rash.
Stop taking this medicine and talk with your doctor if you still have a fever after 3 days, or you still have pain, stuffy nose, or a cough after 7 days . Also call your doctor if your symptoms get worse, or if you have any redness or swelling.
If you need surgery or medical tests, tell the surgeon or doctor ahead of time if you have taken this medicine within the past few days.
Store at room temperature away from moisture and heat.
Stop Use And Ask A Doctor If
- nervousness, dizziness, or sleeplessness occurs
- fever gets worse or lasts more than 3 days
- redness or swelling is present
- new symptoms occur
- pain, cough or nasal congestion gets worse or lasts more than 7 days
- cough comes back or occurs with rash or headache that lasts. These could be signs of a serious condition.
If pregnant or breast-feeding, ask a health professional before use.
Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away. Prompt medical attention is critical for adults as well as for children even if you do not notice any signs or symptoms.
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How Is This Medicine Best Taken
Use Theraflu Nighttime Severe Cough and Cold as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- Take with or without food. Take with food if it causes an upset stomach.
- Dissolve 1 packet in hot water. Sip while hot.
- If using a microwave, dissolve 1 packet in cool water. Microwave until hot. Do not overheat. Stir before and after heating.
What do I do if I miss a dose?
- If you take Theraflu Nighttime Severe Cough and Cold on a regular basis, take a missed dose as soon as you think about it.
- If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
- Many times Theraflu Nighttime Severe Cough and Cold is taken on an as needed basis. Do not take more often than told by the doctor.
How To Use Theraflu Expressmax Severe Cold

See also Warning section.
If you are using the over-the-counter product, read and follow all directions on the product package before taking this medication.
Take this medication by mouth with or without food, usually every 4 to 6 hours as needed, or as directed by your doctor. Drink plenty of fluids when you use this medication unless otherwise directed by your doctor. The fluid will help loosen the mucus in your lungs.
If you are using a liquid form, carefully measure your dose using a medication-measuring device or spoon. Do not use a household spoon because you may not get the correct dose. For some liquid products, you may need to shake the bottle well before each dose. Check the directions on the product package.
The dosage is based on your age, medical condition, and response to treatment. Do not increase your dose or take this medication more often than directed without your doctors approval. Improper use of this medication may result in serious harm .
Tell your doctor if your condition persists for more than 5 to 7 days, if it worsens, or if it occurs with rash, persistent headache, or fever lasting more than 3 days. These may be symptoms of a serious medical problem and should be checked by a doctor.
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The Problem With Too Much Acetaminophen
Nevertheless, you may not realize that acetaminophen is an active ingredient in a combination medication unless you read the label carefully. For example, NyQuil, Theraflu, and Percocet all contain acetaminophen. Unfortunately, using multiple products that contain acetaminophen can result in accidental misuse and overuse, as well as potential liver damage.
Acetaminophen is primarily processed in the liver. The liver breaks down most of the acetaminophen in a normal dose and eliminates it in the urine. But a small portion of the drug is converted to a byproduct that is toxic to the liver cells. If you take too much acetaminophen all at once or over a period of several days this toxic breakdown product can build up and cause damage to the liver.
In addition, there is some evidence that people with dehydration from vomiting or diarrhea, persistent fevers, or underlying liver problems may be at slightly increased risk of liver damage when taking normally safe doses of acetaminophen. The resulting symptoms of right-sided abdominal pain, nausea, vomiting, and general malaise may be mistaken for a worsening flu-like illness instead of being recognized as warning signs of liver damage.
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How Should I Take Theraflu Nighttime Severe Cold
Use exactly as directed on the label, or as prescribed by your doctor. Do not use for longer than recommended. Cold or allergy medicine is usually taken only for a short time until your symptoms clear up.
Do not take more of this medication than is recommended. An overdose of acetaminophen can damage your liver or cause death.
Dissolve the contents of one packet of medicine in 8 ounces of hot water. You may also mix the powder with 8 ounces of cool water and heat the mixture in a microwave oven. Stir the mixture thoroughly before and after heating it. Sip the mixture slowly, making sure you finish all of it within 10 to 15 minutes.
Do not take more than 6 packets of Theraflu Nighttime Severe Cold in one day .
Call doctor if your symptoms do not improve after 7 days of treatment, or if you have a fever with a headache, cough, or skin rash.
This medication can cause unusual results with allergy skin tests. Tell any doctor who treats you that you are taking an antihistamine.
Store at room temperature away from moisture and heat.
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What Drugs And Food Should I Avoid While Taking Acetaminophen Pheniramine And Phenylephrine
Ask a doctor or pharmacist before using any other cold, allergy, pain, or sleep medication. Acetaminophen is contained in many combination medicines. Taking certain products together can cause you to get too much acetaminophen which can lead to a fatal overdose. Check the label to see if a medicine contains acetaminophen or APAP.
Avoid drinking alcohol. It may increase your risk of liver damage while taking acetaminophen.
This medication may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.
What Other Drugs Will Affect Theraflu Nighttime Severe Cold
Ask a doctor or pharmacist before using this medicine if you are also using any other drugs, including prescription and over-the-counter medicines, vitamins, and herbal products. Some medicines can cause unwanted or dangerous effects when used together. Not all possible interactions are listed in this medication guide.
Taking this medicine with other drugs that make you sleepy or slow your breathing can worsen these effects. Ask your doctor before taking Theraflu Nighttime Severe Cold with a sleeping pill, narcotic pain medicine, muscle relaxer, or medicine for anxiety, depression, or seizures.
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How Do I Store And/or Throw Out Theraflu Nighttime Severe Cough And Cold
- Store at room temperature.
- Protect from heat.
- Store in a dry place. Do not store in a bathroom.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
What Is The Most Important Information I Should Know About Acetaminophen Pheniramine And Phenylephrine
Ask a doctor before taking medicine that contains acetaminophen if you have ever had liver disease, or if you drink more than 3 alcoholic beverages per day.
You should not use this medication if you are allergic to acetaminophen or chlorpheniramine, or if you have:
- severe constipation, blockage in your stomach or intestines
- untreated or uncontrolled diseases–glaucoma, asthma or COPD, heart disease, high blood pressure, coronary artery disease, overactive thyroid or
- if you are unable to urinate.
Do not use cold or allergy medicine if you have taken an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur. MAO inhibitors include furazolidone, isocarboxazid, linezolid, phenelzine, rasagiline, selegiline, and tranylcypromine.
Ask a doctor or pharmacist if it is safe for you to take acetaminophen, pheniramine, and phenylephrine if you have other medical conditions, especially:
- kidney disease
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Theraflu Warming Severe Cold Daytime Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction:hives difficulty breathing swelling of your face, lips, tongue, or throat.
In rare cases, acetaminophen may cause a severe skin reaction that can be fatal. This could occur even if you have taken acetaminophen in the past and had no reaction. Stop taking this medicine and call your doctor right away if you have skin redness or a rash that spreads and causes blistering and peeling. If you have this type of reaction, you should never again take any medicine that contains acetaminophen.
Stop using Theraflu Warming Severe Cold Daytime and call your doctor at once if you have:
-
chest pain, fast, slow, or uneven heart rate
-
severe dizziness, feeling like you might pass out
-
mood changes, confusion, hallucinations, seizure
-
little or no urinating
-
nausea, upper stomach pain, itching, loss of appetite, dark urine, clay-colored stools, jaundice or
-
dangerously high blood pressure .
Common side effects may include:
-
dizziness, weakness, mild headache
-
dry mouth, nose, or throat
-
feeling nervous, restless, irritable, or anxious or
How To Use Theraflu Max

See also Warning section.
If you are using the over-the-counter product, read and follow all directions on the product package before taking this medication.
Take this medication by mouth with or without food, usually every 4 to 6 hours as needed, or as directed by your doctor. Drink plenty of fluids when you use this medication unless otherwise directed by your doctor. The fluid will help loosen the mucus in your lungs.
If you are using a liquid form, carefully measure your dose using a medication-measuring device or spoon. Do not use a household spoon because you may not get the correct dose. For some liquid products, you may need to shake the bottle well before each dose. Check the directions on the product package.
The dosage is based on your age, medical condition, and response to treatment. Do not increase your dose or take this medication more often than directed without your doctors approval. Improper use of this medication may result in serious harm .
Tell your doctor if your condition persists for more than 5 to 7 days, if it worsens, or if it occurs with rash, persistent headache, or fever lasting more than 3 days. These may be symptoms of a serious medical problem and should be checked by a doctor.
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What Should I Avoid While Taking Theraflu Flu & Cough
Avoid drinking alcohol. It may increase your risk of liver damage.
Avoid driving or hazardous activity until you know how this medicine will affect you. Your reactions could be impaired.
Ask a doctor or pharmacist before using any other medicine that may contain acetaminophen . Taking too much acetaminophen can lead to a fatal overdose.
Theraflu Nighttime Severe Cold And Cough Powder
6 packets
- Theraflu Nighttime Severe Cold and Cough Hot Liquid Powder medicine
- Powerful relief from severe cold, cough, and flu symptoms such as sore throat pain, headache, minor body aches and pains, and nasal and sinus congestion
- Hot liquid provides a soothing effect
- Cold and cough medicine with delicious honey lemon, chamomile and white tea flavors
- Contains Acetaminophen 650 mg, Diphenhydramine HCl 25 mg, and Phenylephrine HCI 10 mg
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What Is Theraflu Severe Cold & Cough Nighttime
Acetaminophen is a pain reliever and fever reducer. Diphenhydramine is an antihistamine. Phenylephrine is a decongestant.
Theraflu Severe Cold & Cough Nighttime is a combination medicine used to treat cold and flu symptoms such as runny or stuffy nose, sneezing, cough, sore throat, headache, fever, and body aches.
There are many brands and forms of acetaminophen, diphenhydramine, and phenylephrine available. Not all brands are listed on this leaflet.
Theraflu Severe Cold & Cough Nighttime may also be used for purposes not listed in this medication guide.
What Happens If I Miss A Dose
Since Theraflu Max-D Severe Cold & Flu is taken when needed, you may not be on a dosing schedule. If you are taking the medication regularly, take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
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What Should I Avoid While Taking Theraflu Max
Ask a doctor or pharmacist before using any other cold, allergy, pain, or sleep medication. Acetaminophen is contained in many combination medicines. Taking certain products together can cause you to get too much acetaminophen which can lead to a fatal overdose. Check the label to see if a medicine contains acetaminophen or APAP.
Avoid drinking alcohol. It may increase your risk of liver damage while you are taking acetaminophen.
This medication may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.
Which Theraflu Product Is Right For You
Theraflu is an over-the-counter medication that attacks symptoms of the common cold, the flu, and fever.
It is available in syrup, liquid powder, and caplet forms. There are options for different times of the day, like Theraflu daytime versus nighttime medicines. Theraflu is here to help you fight your cold and flu symptoms, including chest congestion, body aches, sore throat, cough and sinus and nasal congestion.
No matter your cold or flu symptom, theres a Theraflu product thats right for you.
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What Other Drugs Will Affect Theraflu Flu& Cough
Avoid using this medicine with other drugs that cause drowsiness or slow your breathing . Ask a doctor or pharmacist before using any other medication, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed in this medication guide.
What Are The Side Effects Of Acetaminophen Pheniramine And Phenylephrine

Get emergency medical help if you have any of these signs of an allergic reaction: hives difficult breathing swelling of your face, lips, tongue, or throat.
In rare cases, acetaminophen may cause a severe skin reaction that can be fatal. This could occur even if you have taken acetaminophen in the past and had no reaction. Stop taking this medicine and call your doctor right away if you have skin redness or a rash that spreads and causes blistering and peeling. If you have this type of reaction, you should never again take any medicine that contains acetaminophen.
Stop using the medicine and call your doctor at once if you have:
- chest pain, rapid pulse, fast or uneven heart rate
- confusion, hallucinations, tremor, severe dizziness or anxiety
- slow, shallow breathing
- little or no urinating
- easy bruising or bleeding, unusual weakness
- nausea, pain in your upper stomach pain, itching, loss of appetite, dark urine, clay-colored stools, jaundice or
- dangerously high blood pressure .
Common side effects may include:
- dryness of the eyes, nose, and mouth
- blurred vision
- feeling restless or irritable or
- mild nausea, stomach pain, constipation.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
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How Should I Take Theraflu Flu & Cough
Use exactly as directed on the label, or as prescribed by your doctor. An acetaminophen overdose can damage your liver or cause death. Cold or cough medicine is only for short-term use until your symptoms clear up.
Always follow directions on the medicine label about giving cough or cold medicine to a child. Do not use the medicine only to make a child sleepy. Death can occur from the misuse of cough or cold medicines in very young children.
You must chew the chewable tablet before you swallow it.
Measure liquid medicine carefully. Use the dosing syringe provided, or use a medicine dose-measuring device .
Dissolve one packet of the powder in at least 4 ounces of water. Stir this mixture and drink all of it right away
Call your doctor if you have a sore throat for more than 2 days, especially if you also have fever, headache, rash, nausea, or vomiting.
If you need surgery or medical tests, tell the surgeon or doctor if you have taken this medicine within the past few days.
Store at room temperature away from moisture and heat. Do not allow liquid medicine to freeze.