Q-Nol Side Effects

Generic name: acetaminophen

Medically reviewed by Drugs.com. Last updated on Jul 29, 2024.

Note: This document provides detailed information about Q-Nol Side Effects associated with acetaminophen. Some dosage forms listed on this page may not apply specifically to the brand name Q-Nol.

Applies to acetaminophen: intravenous solution.

Other dosage forms:

• capsule, capsule liquid filled, elixir, liquid, powder, solution, suppository, suspension, tablet, tablet chewable, tablet disintegrating, tablet extended release
• oral granule

Common side effects of Q-Nol

Some side effects of acetaminophen may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Less common-Adults

• fear

Less common-Children

• diarrhea
• difficulty having a bowel movement (stool)
• irritability
• restlessness

Serious side effects of Q-Nol

Along with its needed effects, acetaminophen (the active ingredient contained in Q-Nol) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor or nurse immediately if any of the following side effects occur while taking acetaminophen:

Less common-Adults

• abnormal breath sounds
• bloating or swelling of the face, arms, hands, lower legs, or feet
• difficult or labored breathing
• difficulty opening the mouth
• dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
• irregular heartbeat
• lockjaw
• loss of appetite
• muscle pain or cramps
• muscle spasm, especially of the neck and back
• nausea or vomiting
• nervousness
• numbness or tingling in the hands, feet, or lips
• pain at the injection site
• slow or fast heartbeat
• sweating
• tightness in the chest
• unusual tiredness or weakness

Less common-Children

• decreased urination
• difficult, fast, or noisy breathing, sometimes with wheezing
• dizziness
• fast, slow, pounding, or irregular heartbeat or pulse
• lower back, side, or stomach pain
• muscle spasms (tetany) or twitching
• noisy breathing
• pain in the arms or legs
• swelling around the eyes
• swelling of the feet, ankles, or lower legs

Get emergency help immediately if any of the following symptoms of overdose occur while taking acetaminophen:

Symptoms of overdose

• black, tarry stools
• bleeding gums
• bloating of the abdomen or stomach
• blood in the urine or stools
• chills
• difficult or painful urination
• general feeling of discomfort or illness
• light-colored stools
• pinpoint red spots on the skin
• sudden decrease in the amount of urine
• unpleasant breath odor
• vomiting of blood

Precautions

It is very important that your doctor check you closely while you or your child are receiving this medicine. This will allow your doctor to see if the medicine is working properly and to decide if you should continue to receive it.

Check with 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 symptoms of a serious liver problem.

This medicine may cause serious types of allergic reactions, including anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Call your doctor right away if you or your child have a rash, itching, hoarseness, trouble breathing, trouble swallowing, or any swelling of your hands, face, or mouth after you receive this medicine.

Serious skin reactions can occur with this medicine. Check with your doctor right away if you have blistering, peeling, or loose skin, red skin lesions, severe acne or skin rash, sores or ulcers on the skin, or fever or chills while you or your child are receiving this medicine.

This medicine will add to the effects of alcohol and other CNS depressants (medicines that can make you drowsy or less alert). Some examples of CNS depressants are antihistamines or medicine for allergies or colds, sedatives, tranquilizers, or sleeping medicine, other prescription pain medicine or narcotics, medicine for seizures or barbiturates, muscle relaxants, or anesthetics, including some dental anesthetics. Also, there may be a greater risk of liver damage if you drink three or more alcoholic beverages while you are taking acetaminophen. Do not drink alcoholic beverages, and check with your doctor before taking any of these medicines while you or your child are using this medicine.

Carefully check the labels of all other medicines you are using, because they may also contain acetaminophen (eg, Tylenol®). It is not safe to use more than 4 grams (4,000 milligrams) of acetaminophen in one day (24 hours).

For healthcare professionals

Applies to acetaminophen: compounding powder, intravenous solution, oral capsule, oral granule effervescent, oral liquid, oral powder, oral powder for reconstitution, oral suspension, oral tablet, oral tablet chewable, oral tablet disintegrating, oral tablet extended release, rectal suppository.

General adverse events

In general, acetaminophen (the active ingredient contained in Q-Nol) is well-tolerated when administered in therapeutic doses. The most commonly reported adverse reactions have included nausea, vomiting, constipation. Injection site pain and injection site reaction have been reported with the IV product.^[Ref]

Hepatic

• Common (1% to 10%): Increased aspartate aminotransferase
• Rare (less than 0.1%): Increased hepatic transaminases
• Frequency not reported: Liver failure^[Ref]

Gastrointestinal

• Very common (10% or more): Nausea (up to 34%), Vomiting (up to 15%)
• Common (1% to 10%): Abdominal pain, diarrhea, constipation, dyspepsia, enlarged abdomen
• Frequency not reported: Dry mouth^[Ref]

Hypersensitivity

• Postmarketing reports: Anaphylaxis, hypersensitivity reactions^[Ref]

Hematologic

• Common (1% to 10%): Anemia, postoperative hemorrhage
• Very rare (less than 0.01%): Thrombocytopenia, leucopenia, neutropenia^[Ref]

Dermatologic

• Common (1% to 10%): Rash, pruritus
• Rare (less than 0.1%): Serious skin reactions such as acute generalized exanthematous pustulosis, Stevens-Johnson syndrome, and toxic epidermal necrolysis
• Very rare (less than 0.01%): Pemphigoid reaction, pustular rash, Lyell syndrome^[Ref]

Respiratory

• Common (1% to 10%): Dyspnea, abnormal breath sounds, pulmonary edema, hypoxia, pleural effusion, stridor, wheezing, coughing^[Ref]

Cardiovascular

• Common (1% to 10%): Peripheral edema, hypertension, hypotension, tachycardia, chest pain^[Ref]

Metabolic

• Common (1% to 10%): Hypokalemia, hyperglycemia^[Ref]

Nervous system

• Common (1% to 10%): Headache, dizziness
• Frequency not reported: Dystonia

Musculoskeletal

• Common (1% to 10%): Muscle spasms, trismus

Psychiatric

• Common (1% to 10%): Insomnia, anxiety

Genitourinary

• Common (1% to 10%): Oliguria

Local

• Common (1% to 10%): Infusion site pain, injection site reactions

Ocular

• Common (1% to 10%): Periorbital edema

Other

• Common (1% to 10%): Pyrexia, fatigue
• Rare (0.01% to 0.1%): Malaise

See also:

Frequently asked questions

• Can you take tramadol with acetaminophen, ibuprofen, or aspirin?
• What's the best medicine for sore throat?
• Acetaminophen vs paracetamol: What do you need to know?
• What is paracetamol / Panadol called in the US?
• Advil (ibuprofen) & Tylenol (acetaminophen) together, safe?
• Acetaminophen vs Ibuprofen: Which is better?
• What medications cause liver enzymes to be elevated?
• What temperature is considered a fever?
• Is it safe to take acetaminophen every day?

Further information

Q-Nol side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.

Medical Disclaimer