Phenaphen and Codeine : Uses, Side Effects, Interactions & More
Phenaphen & Codeine
The combination of Phenaphen and codeine may be habit forming, especially with prolonged use. Take Phenaphen and codeine exactly as directed. Do not take more of it, take it more often, or take it in a different way than directed by your doctor. While taking Phenaphen and codeine, discuss with your health care provider your pain treatment goals, length of treatment, and other ways to manage your pain. Tell your doctor if you or anyone in your family drinks or has ever drunk large amounts of alcohol, uses or has ever used street drugs, or has overused prescription medications, or if you have or have ever had depression or another mental illness. There is a greater risk that you will overuse Phenaphen and codeine if you have or have ever had any of these conditions. Talk to your health care provider immediately and ask for guidance if you think that you have an opioid addiction or call the U.S. Substance Abuse and Mental Health Services Administration (SAMHSA) National Helpline at 1-800-662-HELP.
The combination of Phenaphen and codeine may cause serious or life-threatening breathing problems, especially during the first 24 to 72 hours of your treatment and any time your dose is increased. Your doctor will monitor you carefully during your treatment. Tell your doctor if you have or have ever had slowed breathing or asthma. Your doctor will probably tell you not to take Phenaphen and codeine. Also tell your doctor if you have or have ever had lung disease such as chronic obstructive pulmonary disease (COPD; a group of diseases that affect the lungs and airways), a head injury or any condition that increases the amount of pressure in your brain. The risk that you will develop breathing problems may be higher if you are an older adult or are weak or malnourished due to disease. If you experience any of the following symptoms, call your doctor immediately or get emergency medical treatment: slowed breathing, long pauses between breaths, or shortness of breath.
When codeine-containing medication was used in children, serious and life-threatening breathing problems such as slow or difficulty breathing and deaths were reported. Phenaphen and codeine should never be used to treat pain or cough in children younger than 12 years of age or to relieve pain after surgery to remove the tonsils and/or adenoids in children younger than 18 years of age. Phenaphen and codeine should not be used in children 12 to 18 years of age who are obese or who have a neuromuscular disease (disease that affects the nerves that control voluntary muscles), a lung disease, or obstructive sleep apnea (condition in which the airway becomes blocked or narrow and breathing stops for short periods during sleep) as these conditions may increase their risk of breathing problems.
Taking too much acetaminophen (found in this combination preparation) can cause liver damage, sometimes serious enough to require liver transplantation or cause death. You might accidentally take too much acetaminophen if you do not follow the directions on the prescription or package label carefully, or if you take more than one product that contains acetaminophen. Be aware that you should not take more than 4,000 mg of acetaminophen per day. Tell your doctor if you have or have ever had liver disease. If you need to take more than one product that contains acetaminophen, it may be difficult for you to calculate the total amount of acetaminophen you are taking. Ask your doctor or pharmacist to help you.
Taking certain medications during your treatment with Phenaphen and codeine may increase the risk that you will experience breathing problems or other serious, life threatening breathing problems, sedation, or coma. Tell your doctor if you are taking or plan to take any of the following medications: certain antifungal medications including itraconazole (Onmel, Sporanox), ketoconazole, and voriconazole (Vfend); benzodiazepines such as alprazolam (Xanax), diazepam (Diastat, Valium), estazolam, flurazepam, lorazepam (Ativan), and triazolam (Halcion); carbamazepine (Carbatrol, Epitol, Equetro, Tegretol, Teril); erythromycin (Erytab, Erythrocin); certain medications for human immunodeficiency virus (HIV) including indinavir (Crixivan), nelfinavir (Viracept), and ritonavir (Norvir, in Kaletra); muscle relaxants; other pain medications; phenytoin (Dilantin, Phenytek); rifampin (Rifadin, Rimactane, in Rifamate); sedatives; sleeping pills; or tranquilizers. Your doctor may need to change the dosages of your medications and will monitor you carefully. If you take Phenaphen and codeine with any of these medications and you develop any of the following symptoms, call your doctor immediately or seek emergency medical care: unusual dizziness, lightheadedness, extreme sleepiness, slowed or difficult breathing, or unresponsiveness. Be sure that your caregiver or family members know which symptoms may be serious so they can call the doctor or emergency medical care if you are unable to seek treatment on your own.
Drinking alcohol, taking prescription or nonprescription medications that contain alcohol, or using street drugs during your treatment with Phenaphen and codeine increases the risk that you will experience serious, life-threatening side effects. Do not drink alcohol, take prescription or nonprescription medications that contain alcohol, or use street drugs during your treatment.
Tell your doctor if you are pregnant or plan to become pregnant. If you take Phenaphen and codeine regularly during your pregnancy, your baby may experience life-threatening withdrawal symptoms after birth. Tell your baby’s doctor right away if your baby experiences any of the following symptoms: irritability, hyperactivity, abnormal sleep, high-pitched cry, uncontrollable shaking of a part of the body, vomiting, diarrhea, or failure to gain weight.
Your doctor or pharmacist will give you the manufacturer’s patient information sheet (Medication Guide) when you begin treatment with Phenaphen and codeine and each time you refill your prescription. Read the information carefully and ask your doctor or pharmacist if you have any questions. You can also visit the Food and Drug Administration (FDA) website (http://www.fda.gov/Drugs/DrugSafety/ucm085729.htm) or the manufacturer’s website to obtain the Medication Guide.
Why is this medication prescribed?
The combination of Phenaphen and codeine is used to relieve mild to moderate pain. Acetaminophen is in a class of medications called analgesics (pain relievers) and antipyretics (fever reducers). It works by changing the way the body senses pain and by cooling the body. Codeine belongs to a class of medications called opiate (narcotic) analgesics and to a class of medications called antitussives. When codeine is used to treat pain, it works by changing the way the brain and nervous system respond to pain. When codeine is used to reduce coughing, it works by decreasing the activity in the part of the brain that causes coughing.
How should this medicine be used?
The combination of Phenaphen and codeine comes as a tablet, capsule, and liquid to take by mouth. It usually is taken every 4 hours as needed. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take Phenaphen and codeine exactly as directed.
If you have taken Phenaphen and codeine for several weeks or longer, do not stop taking the medication without talking to your doctor. Your doctor may decrease your dose gradually. If you suddenly stop taking Phenaphen and codeine, you may experience withdrawal symptoms such as restlessness, widened pupils (black circles in the center of the eyes), teary eyes, irritability, anxiety, runny nose, difficulty falling asleep or staying asleep, yawning, sweating, fast breathing, fast heartbeat, chills, nausea, loss of appetite, vomiting, diarrhea, stomach cramps, or muscle aches.
Other uses for this medicine
This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.
What special precautions should I follow?
Before taking Phenaphen and codeine,
- tell your doctor and pharmacist if you are allergic to acetaminophen, codeine, sulfite, any other medications, or any of the ingredients in Phenaphen and codeine products. Ask your doctor or pharmacist for a list of the ingredients.
- tell your doctor or pharmacist if you are taking or receiving the following monoamine oxidase (MAO) inhibitors or if you have stopped taking them within the past two weeks: isocarboxazid (Marplan), linezolid (Zyvox), methylene blue, phenelzine (Nardil), selegiline (Eldepryl, Emsam, Zelapar), or tranylcypromine (Parnate). Your doctor will probably tell you not to take Phenaphen and codeine if you are taking one or more of these medications, or have taken them within the past two weeks.
- tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention if you are taking any of the following: amiodarone (Nexterone, Pacerone); antihistamines (found in cold and allergy medications); buprenorphine (Belbuca, Butrans, Probuphine); bupropion (Aplenzin, Wellbutrin, Zyban); butorphanol; diuretics (‘water pills’); medications for migraine headaches such as almotriptan (Axert), eletriptan (Relpax), frovatriptan (Frova), naratriptan (Amerge), rizatriptan (Maxalt), sumatriptan (Imitrex, in Treximet), and zolmitriptan (Zomig); mirtazapine (Remeron); nalbuphine; pentazocine (Talwin); selective serotonin-reuptake inhibitors such as citalopram (Celexa), escitalopram (Lexapro), fluoxetine (Prozac, Sarafem, in Symbyax), fluvoxamine (Luvox), paroxetine (Brisdelle, Prozac, Pexeva), and sertraline (Zoloft); serotonin and norepinephrine reuptake inhibitors such as duloxetine (Cymbalta), desvenlafaxine (Khedezla, Pristiq), milnacipran (Savella), and venlafaxine (Effexor); tramadol (Conzip), trazodone (Oleptro); or tricyclic antidepressants (‘mood elevators’) such as amitriptyline, clomipramine (Anafranil), desipramine (Norpramin), doxepin (Silenor), imipramine (Tofranil), nortriptyline (Pamelor), protriptyline (Vivactil), and trimipramine (Surmontil). Many other medications may also interact with Phenaphen and codeine, so be sure to tell your doctor about all the medications you are taking, even those that do not appear on this list. Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
- tell your doctor if you have any of the conditions mentioned in the IMPORTANT WARNING section, a blockage or narrowing of your stomach or intestines, or paralytic ileus (condition in which digested food does not move through the intestines). Your doctor may tell you not to take Phenaphen and codeine if you have any of these conditions.
- tell your doctor if you have or have ever had seizures, difficulty urinating, or pancreas, gallbladder, or kidney disease.
- you should know that this medication may decrease fertility in men and women. Talk to your doctor about the risks of taking Phenaphen and codeine.
- tell your doctor if you are breastfeeding. You should not breastfeed while taking Phenaphen and codeine. Codeine can cause shallow breathing, difficulty or noisy breathing, confusion, more than usual sleepiness, trouble breastfeeding, or limpness in breastfed infants in breastfed infants.
- if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking Phenaphen and codeine.
- you should know that this medication may make you drowsy. Do not drive a car or operate machinery until you know how this medication affects you.
- you should know that Phenaphen and codeine may cause dizziness, lightheadedness, and fainting when you get up too quickly from a lying position. To avoid this problem, get out of bed slowly, resting your feet on the floor for a few minutes before standing up.
What should I do if I forget a dose?
This medication usually is taken as needed. If your doctor has told you to take Phenaphen and codeine regularly, take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.
What side effects can this medication cause?
Phenaphen and codeine may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
- difficulty urinating
Some side effects can be serious. If you experience any of these symptoms or those mentioned in the IMPORTANT WARNING section, call your doctor immediately or get emergency medical help:
- nausea, vomiting, loss of appetite, weakness, or dizziness
- agitation, hallucinations (seeing things or hearing voices that do not exist), fever, sweating, confusion, fast heartbeat, shivering, severe muscle stiffness or twitching, loss of coordination, nausea, vomiting, or diarrhea
- red, peeling or blistering skin
- swelling of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs
- difficulty breathing or swallowing
- inability to get or keep an erection
- irregular menstruation
- decreased sexual desire
Phenaphen and codeine may cause other side effects. Call your doctor if you have any unusual problems while you are taking this medication.
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration’s (FDA) MedWatch Adverse Event Reporting program online (http://www.fda.gov/Safety/MedWatch) or by phone (1-800-332-1088).
What should I know about storage and disposal of this medication?
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom).
It is important to keep all medication out of sight and reach of children as many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and young children can open them easily. To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location – one that is up and away and out of their sight and reach. http://www.upandaway.org
Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. Talk to your pharmacist or contact your local garbage/recycling department to learn about take-back programs in your community. See the FDA’s Safe Disposal of Medicines website (http://goo.gl/c4Rm4p) for more information if you do not have access to a take-back program.
In case of emergency/overdose
In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at https://www.poisonhelp.org/help. If the victim has collapsed, had a seizure, has trouble breathing, or can’t be awakened, immediately call emergency services at 911.
While taking Phenaphen and codeine, you may be told to always have a rescue medication called naloxone available (e.g., home, office). Naloxone is used to reverse the life-threatening effects of an overdose. It works by blocking the effects of opiates to relieve dangerous symptoms caused by high levels of opiates in the blood. You will probably be unable to treat yourself if you experience an opiate overdose. You should make sure that your family members, caregivers, or the people who spend time with you know how to tell if you are experiencing an overdose, how to use naloxone, and what to do until emergency medical help arrives. Your doctor or pharmacist will show you and your family members how to use the medication. Ask your pharmacist for the instructions or visit the manufacturer’s website to get the instructions. If someone sees that you are experiencing symptoms of an overdose, he or she should give you your first dose of naloxone, call 911 immediately, and stay with you and watch you closely until emergency medical help arrives. Your symptoms may return within a few minutes after you receive naloxone. If your symptoms return, the person should give you another dose of naloxone. Additional doses may be given every 2 to 3 minutes, if symptoms return before medical help arrives.
If someone takes more than the recommended dose of Phenaphen and codeine, get medical help immediately, even if the person does not have any symptoms. Symptoms of overdose may include the following:
- loss of appetite
- unusual bleeding or bruising
- pain in the upper right part of the stomach
- yellowing of the skin or eyes
- difficulty breathing
- loss of consciousness
- loss of muscle tone
- narrowed or widened pupils
- cold and clammy skin
- slow heartbeat
What other information should I know?
Keep all appointments with your doctor. Your doctor may order certain lab tests to check your body’s response to Phenaphen and codeine.
Before having any laboratory test (especially those that involve methylene blue), tell your doctor and the laboratory personnel that you are taking Phenaphen and codeine.
Do not let anyone else take your medication. Phenaphen and codeine is a controlled substance. Prescriptions may be refilled only a limited number of times; ask your pharmacist if you have any questions.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
- Capital® & Codeine
- Phenaphen® with Codeine
- Tylenol® with Codeine
Brand names of combination products
- Fioricet® with Codeine (containing Acetaminophen, Butalbital, Caffeine, Codeine)
- Phrenilin® with Caffeine, Codeine (containing Acetaminophen, Butalbital, Caffeine, Codeine)
- APAP and Codeine (containing Acetaminophen and Codeine)
Disclaimer: DrLinex has made every effort to ensure that all information is factually accurate, comprehensive and up-to-date. However, this article should not be used as a licensed health care professional’s choice of knowledge and expertise. You should always consult your doctor or other health care professional before taking any medication. The information given here is subject to change and it has not been used to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions or adverse effects. The lack of warning or other information for any drug does not indicate that the combination of medicine or medication is safe, effective or appropriate for all patients or all specific uses.