Get emergency medical help if you have signs of an allergic reaction to G Nac: sneezing, runny or stuffy nose; wheezing or trouble breathing; hives; swelling of your face, lips, tongue, or throat.
Get emergency medical help if you have signs of a heart attack or stroke: chest pain spreading to your jaw or shoulder, sudden numbness or weakness on one side of the body, slurred speech, feeling short of breath.
Stop using G Nac and call your doctor at once if you have:
the first sign of any skin rash, no matter how mild;
shortness of breath (even with mild exertion);
swelling or rapid weight gain;
signs of stomach bleeding - bloody or tarry stools, coughing up blood or vomit that looks like coffee grounds;
liver problems - nausea, upper stomach pain, itching, tired feeling, flu-like symptoms, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
kidney problems - little or no urinating, painful or difficult urination, swelling in your feet or ankles, feeling tired or short of breath;
high blood pressure - severe headache, pounding in your neck or ears, nosebleed, anxiety, confusion;
low red blood cells (anemia) - pale skin, feeling light-headed or short of breath, rapid heart rate, trouble concentrating; or
severe skin reaction - fever, sore throat, swelling in your face or tongue, burning in your eyes, skin pain followed by a red or purple skin rash that spreads (especially in the face or upper body) and causes blistering and peeling.
Common G Nac side effects may include:
indigestion, gas, stomach pain, nausea, vomiting;
headache, dizziness, drowsiness;
itching, increased sweating;
increased blood pressure; or
swelling or pain in your arms or legs.
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.
Side effects of G Nac in details
A side effect of any drug can be defined as the unwanted or undesired effect produced by the drug. The side effect can be major or in few medications minor that can be ignored. Side effects not only vary from drug to drug, but it also depends on the dose of the drug, the individual sensitivity of the person, brand or company which manufactures it. If side effects overweigh the actual effect of the medicine, it may be difficult to convince the patient to take the drug. Few patients get specific side effects to specific drugs; in that case, a doctor replaces the drug with another. If you feel any side effect and it troubles you, do not forget to share with your healthcare practitioner.
Transient burning and stinging were reported in approximately 15% of patients across studies with the use of G Nac ophthalmic solution, 0.1%. In cataract surgery studies, keratitis was reported in up to 28% of patients using G Nac ophthalmic solution, 0.1%, although in many of these cases keratitis was initially noted prior to the initiation of treatment. Elevated intraocular pressure following cataract surgery was reported in approximately 15% of patients undergoing cataract surgery. Lacrimation complaints were reported in approximately 30% of case studies undergoing incisional refractive surgery. The following adverse reactions were reported in approximately 10% or less of the patients: abnormal vision, acute elevated IOP, blurred vision, conjunctivitis, corneal deposits, corneal edema, corneal opacity, corneal lesions, discharge, eyelid swelling, eye pain, injection (redness), iritis, irritation, itching, lacrimation disorder, and ocular allergy.
The following adverse reactions were reported in 3% or less of the patients: abdominal pain, asthenia, chills, dizziness, facial edema, fever, headache, insomnia, nausea, pain, rhinitis, viral infection and vomiting.
The following reactions have been identified during postmarketing use of topical G Nac ophthalmic solution, 0.1% in clinical practice. Because they are reported voluntarily from a population of unknown size, estimates of frequency cannot be made. The reactions, which have been chosen for inclusion due to either their seriousness, frequency of reporting, possible causal connection to topical G Nac ophthalmic solution, 0.1%, or a combination of these factors, include corneal erosion, corneal infiltrates, corneal perforation, corneal thinning, corneal ulceration and epithelilal breakdown.
TO REPORT SUSPECTED ADVERSE REACTIONS, contact Altaire Pharmaceuticals, Inc., at 1-800-258-2471 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
What is the most important information I should know about G Nac?
G Nac may cause dizziness or drowsiness. Theses effects may be worse if you take it with alcohol or certain medicines. Use G Nac with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it.
G Nac is for use on the skin only. Do not get it in your eyes, nose, or mouth. If you get G Nac in your eye, wash the eye out with water or saline right away. Contact your doctor if irritation persists for more than 1 hour.
Do NOT use more than 1 patch at a time or use G Nac for longer than prescribed without checking with your doctor.
If irritation occurs at the application site, remove the patch and contact your doctor.
Serious stomach ulcers or bleeding can occur with the use of G Nac. Taking it in high doses or for a long time, smoking, or drinking alcohol increases the risk of these side effects. Taking G Nac with food will NOT reduce the risk of these effects. Contact your doctor or emergency room at once if you develop severe stomach or back pain; black, tarry stools; vomit that looks like blood or coffee grounds; or unusual weight gain or swelling.
G Nac is an NSAID. Before you start any new medicine, check the label to see if it has an NSAID (eg, ibuprofen) in it too. If it does or if you are not sure, check with your doctor or pharmacist.
Do not take aspirin while you are using G Nac unless your doctor tells you to.
Lab tests, including kidney and liver function, blood electrolyte levels, complete blood cell counts, and blood pressure, may be performed while you use G Nac. These tests may be used to monitor your condition or check for side effects. Be sure to keep all doctor and lab appointments.
Use G Nac with caution in the ELDERLY; they may be more sensitive to its effects, especially stomach bleeding and kidney problems.
G Nac should be used with extreme caution in CHILDREN; safety and effectiveness in children have not been confirmed.
PREGNANCY and BREAST-FEEDING: G Nac may cause harm to the fetus. Do not use it during the last 3 months of pregnancy. If you think you may be pregnant, contact your doctor. You will need to discuss the benefits and risks of using G Nac while you are pregnant. It is not known if G Nac is found in breast milk. Do not breast-feed while using G Nac.
G Nac contraindications
Contraindication can be described as a special circumstance or a disease or a condition wherein you are not supposed to use the drug or undergo particular treatment as it can harm the patient; at times, it can be dangerous and life threatening as well. When a procedure should not be combined with other procedure or when a medicine cannot be taken with another medicine, it is called Relative contraindication. Contraindications should be taken seriously as they are based on the relative clinical experience of health care providers or from proven research findings.
G Nac in all formulations, Cataflam, Voltaren, and Voltaren-XR, is contraindicated in patients with known hypersensitivity to G Nac and G Nac-containing products. G Nac should not be given to patients who have experienced asthma, urticaria, or other allergic-type reactions after taking aspirin or other NSAIDs. Severe, rarely fatal, anaphylactic-like reactions to G Nac have been reported in such patients.
DailyMed. "DICLOFENAC EPOLAMINE: DailyMed provides trustworthy information about marketed drugs in the United States. DailyMed is the official provider of FDA label information (package inserts).". https://dailymed.nlm.nih.gov/dailyme... (accessed September 17, 2018).
European Chemicals Agency - ECHA. "Diclofenac: The information provided here is aggregated from the "Notified classification and labelling" from ECHA's C&L Inventory. ". https://echa.europa.eu/information-o... (accessed September 17, 2018).
The results of a survey conducted on ndrugs.com for G Nac are given in detail below. The results of the survey conducted are based on the impressions and views of the website users and consumers taking G Nac. We implore you to kindly base your medical condition or therapeutic choices on the result or test conducted by a physician or licensed medical practitioners.
Consumer reported side effects
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