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Genapap (Oral, Rectal)
Generic name: acetaminophen
Brand names: Acephen, Actamin Maximum Strength, Altenol, Aminofen, Anacin Aspirin Free, Apra, Arthritis Pain Relief, Cetafen, Children's Mapap, Children's Nortemp, Comtrex Sore Throat Relief, Dolono, Febrol, Feverall, Genapap, Genebs, Infantaire, Mapap, Mapap Arthritis Pain, Pain-Eze +/Rheu-Thritis
Uses for Genapap
Acetaminophen is used to relieve minor aches and pain and to lower fever. It may also help with pain from mild types of arthritis.
This medicine is available without a prescription.
This section was rewritten for readability and reviewed for meaning.
Precautions while using Genapap
It is very important that your doctor checks how you or your child is doing while using this medicine. This will help your doctor see if the medicine is working well and decide if you should keep taking it.
If your symptoms or fever do not get better in a few days or if they get worse, contact your doctor.
Many combination medicines have acetaminophen in them, including products with brand names like Alka-Seltzer Plus®, Comtrex®, Drixoral®, Excedrin Migraine®, Midol®, Sinutab®, Sudafed®, Theraflu®, and Vanquish®. Taking these medicines along with the one you are already using may give you more than a safe amount of acetaminophen. Talk to your doctor before using more than one medicine that contains acetaminophen.
Contact your doctor right away if you or your child have pain or tenderness in the upper stomach; pale stools; dark urine; loss of appetite; nausea; unusual tiredness or weakness; or yellow eyes or skin. These could be signs of a serious liver problem.
If you will be taking more than an occasional 1 or 2 doses of acetaminophen, do not drink alcoholic beverages. Doing so may increase the risk of liver damage, especially if you regularly drink large amounts of alcohol, take more acetaminophen than what is recommended on the label, or use it regularly for a long time.
Acetaminophen may affect the results of some medical tests. Before any medical tests, inform the person in charge if you have taken acetaminophen in the past 3 or 4 days. You can also call the laboratory ahead of time to check if acetaminophen will cause any issues.
Acetaminophen may give false results on some blood glucose tests. If you are diabetic and notice a change in your test results, or if you have any questions, consult your doctor.
If you think you have taken too much acetaminophen, seek emergency help immediately, even if there are no signs of poisoning. Treatment to prevent liver damage must begin as soon as possible.
This section was rewritten for readability and reviewed for meaning.
Before using Genapap
In deciding to use a medicine, you and your doctor must consider the risks of taking the medicine compared to the benefits it may provide. Here are some important points to think about:
Allergies
Inform your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also, let your healthcare professional know if you have any other allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Pediatric
Studies conducted so far have not shown any specific problems in children that would limit the use of acetaminophen. However, do not give over-the-counter products to children under 2 years of age unless your doctor tells you to do so.
Geriatric
Studies conducted so far have not shown any specific problems in elderly patients that would limit the use of acetaminophen.
Breast Feeding
Research in women indicates that this medicine poses minimal risk to infants when used during breastfeeding.
Interactions with Medicines
Some medicines should not be taken together, while others may be used together even if an interaction could happen. In these cases, your doctor may adjust the dose, or other precautions may be necessary. It is very important that your healthcare professional knows if you are taking any of the medicines listed below. The following interactions are based on their potential significance and are not necessarily a complete list.
Using this medicine with any of the following medicines is generally not recommended, but may be necessary in some situations. If both medicines are prescribed together, your doctor may change the dose or frequency of use for one or both medicines.
- Imatinib
- Isoniazid
- Pixantrone
- Pneumococcal 13-Valent Vaccine, Diphtheria Conjugate
Using this medicine with any of the following medicines may increase the risk of certain side effects, but using both drugs may still be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or frequency of use for one or both medicines.
- Acenocoumarol
- Carbamazepine
- Fosphenytoin
- Lixisenatide
- Phenytoin
- Warfarin
- Zidovudine
Interactions with Food/Tobacco/Alcohol
Certain medicines should not be taken around the time of eating or with certain foods due to possible interactions. Using alcohol or tobacco with some medicines may also lead to interactions. The following interactions are based on their potential significance and are not necessarily a complete list.
Using this medicine with any of the following is usually not recommended, but may be unavoidable in some cases. If used together, your doctor may change the dose or frequency of use for this medicine, or provide specific instructions regarding food, alcohol, or tobacco.
- Ethanol
- Tobacco
Using this medicine with any of the following may increase the risk of certain side effects, but may be unavoidable in some situations. If used together, your doctor may change the dose or frequency of use for this medicine, or provide specific instructions regarding food, alcohol, or tobacco.
- Cabbage
Other Medical Problems
Having other medical issues may affect how this medicine works. Be sure to tell your doctor if you have any other medical conditions, especially:
- Alcohol abuse, or a history of it
- Severe kidney disease
- Liver disease (including hepatitis)—This may worsen side effects.
- Phenylketonuria (PKU)—Some brands of acetaminophen contain aspartame, which can worsen this condition.
This section was rewritten for readability and reviewed for meaning.
Side Effects of Genapap
Along with its necessary effects, a medicine can cause some unwanted effects. Not all of these side effects may happen, but if they do, you may need medical attention.
Check with your doctor right away if any of the following side effects occur:
Rare
- Bloody or black, tarry stools
- Bloody or cloudy urine
- Fever with or without chills (not present before treatment and not caused by the condition being treated)
- Severe and/or sharp pain in the lower back and/or side
- Pinpoint red spots on the skin
- Skin rash, hives, or itching
- Sore throat (not present before treatment and not caused by the condition being treated)
- Sores, ulcers, or white spots on the lips or in the mouth
- Sudden decrease in the amount of urine
- Unusual bleeding or bruising
- Unusual tiredness or weakness
- Yellow eyes or skin
Get emergency help right away if any of the following symptoms of overdose occur:
Symptoms of overdose
- Diarrhea
- Increased sweating
- Loss of appetite
- Nausea or vomiting
- Stomach cramps or pain
- Swelling, pain, or tenderness in the upper abdomen or stomach area
Other side effects not listed may also happen in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
In the U.S.
- Acephen
- Actamin Maximum Strength
- Altenol
- Aminofen
- Anacin Aspirin Free
- Apra
- Arthritis Pain Relief
- Cetafen
- Children's Mapap
- Children's Nortemp
- Comtrex Sore Throat Relief
- Dolono
- Febrol
- Feverall
- Genapap
- Genebs
- Infantaire
- Mapap
- Mapap Arthritis Pain
- Pain-Eze +/Rheu-Thritis
- Pyrecot
- Pyregesic
- Q-Pap
- Redutemp
- Silapap
- T-Painol
- Tycolene
- Tylenol
In Canada
- Abenol
- Acetaminophen
- Actimol Children's
- Actimol Infant
- Atasol
- Atoma Acetaminophen Arthritis Pain
- Atoma Children's Acetaminophen - Dye Free- Cherry
- Atoma Children's Acetaminophen Suspension - Bubble Gum
- Basic Care Acetaminophen - Arthritis Pain
- Biomedic Acetaminophen Arthritis Pain
- Children's Acetaminophen
- Children's Acetaminophen - Grape
Available Dosage Forms:
- Capsule, Liquid Filled
- Solution
- Powder
- Tablet, Chewable
- Suppository
- Liquid
- Elixir
- Suspension
- Tablet
- Capsule
- Tablet, Extended Release
- Tablet, Disintegrating
Therapeutic Class: Analgesic
This section was rewritten for readability and reviewed for meaning.
Proper use of Genapap
Take this medicine only as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. Liver damage can occur if large amounts of acetaminophen are taken for a long time.
If you are taking this medicine without the advice of your doctor, carefully read the package label and follow the dosing instructions. Talk to your doctor if you have any questions.
Carefully check the labels of all other medicines you are using, because they may also contain acetaminophen. It is not safe to use more than 4 grams (4,000 milligrams) of acetaminophen in one day (24 hours), as this may increase the risk for serious liver problems. For Tylenol® Extra Strength, the maximum dose is 3,000 milligrams per 24 hours.
You may take this medicine with or without food.
For patients using the oral liquid with syringe (e.g. Little Fevers®):
- Shake the bottle well before each use.
- Measure the dose with the provided dose syringe (e.g., AccuSafe™) that comes with the package. Do not use any other syringe, dropper, spoon, or dosing device when giving this medicine to your child.
- Remove the cap, attach the syringe to the flow restrictor, and invert the bottle.
- Pull back the syringe until filled with the dose prescribed by your doctor.
- Slowly give the medicine into your child's mouth (towards the inner cheek).
- Replace and tighten the cap.
For patients using the oral liquid with dropper:
- Shake the bottle well before each use.
- Measure the dose with the provided dropper. Do not use any other syringe, dropper, spoon, or dosing device when giving this medicine to your child.
- Remove the cap, insert the dropper and withdraw the dose prescribed by your doctor.
- Slowly give the medicine into your child's mouth (towards the inner cheek).
- Replace the cap back tightly.
For patients using acetaminophen oral granules (e.g., Snaplets-FR):
- Just before the medicine is to be taken, open the number of packets needed for one dose.
- Mix the granules inside of the packets with a small amount of soft food, such as applesauce, ice cream, or jam.
- Eat the acetaminophen granules along with the food.
For patients using acetaminophen oral powders (e.g., Feverall® Sprinkle Caps [Children's or Junior Strength]):
- These capsules are not intended to be swallowed whole. Instead, just before the medicine is to be taken, open the number of capsules needed for one dose.
- Empty the powder from each capsule into 1 teaspoonful (5 mL) of water or other liquid.
- Drink the medicine along with the liquid. You may drink more liquid after taking the medicine.
- You may also mix the powder with a small amount of soft food, such as applesauce, ice cream, or jam. Eat the acetaminophen powder along with the food.
For patients using acetaminophen suppositories:
- If the suppository is too soft to insert, chill it in the refrigerator for 30 minutes or run cold water over it before removing the foil wrapper.
- To insert the suppository: Remove the foil wrapper and moisten the suppository with cold water. Lie down on your side and use your finger to push the suppository up into the rectum.
Dosing
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For pain or fever: For oral and rectal dosage forms (capsules, granules, powders, solution, suppositories, suspension, or tablets): Adults and teenagers—650 to 1000 milligrams (mg) every 4 to 6 hours as needed. Dose is based on form and strength. Carefully follow the label instructions for the maximum dose per day. Children—Dose is based on weight or age. Carefully follow the label instructions for the maximum dose per day. Children 11 to 12 years of age: 320 to 480 mg every 4 to 6 hours as needed. Children 9 to 11 years of age: 320 to 400 mg every 4 to 6 hours as needed. Children 6 to 9 years of age: 320 mg every 4 to 6 hours as needed. Children 4 to 6 years of age: 240 mg every 4 to 6 hours as needed. Children 2 to 4 years of age: 160 mg every 4 to 6 hours as needed. Children under 2 years of age: Use and dose must be determined by your doctor.
Missed Dose
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Storage
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep the bottle closed when you are not using it. Store it at room temperature, away from light and heat. Do not freeze.
You may store the suppositories in the refrigerator, but do not freeze them.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Frequently asked questions
- Can You Take Tramadol with Acetaminophen, Ibuprofen, or Aspirin?
- Acetaminophen vs paracetamol: What do you need to know?
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Content is provided for education and is not medical advice. See our medical disclaimer.