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Medications and their Potential to Cause Increase 'Confusion'


This section presents medications that are known to potentially lead to 'Confusion' as a side effect. It's important to note that mild side effects are quite common with medications.
Please be aware that the drugs listed here are individual medications and may be part of a broader combination therapy. This information is meant to be a helpful resource but should not replace professional medical advice. If you're concerned about 'Confusion', it's best to consult a healthcare professional.
In addition to 'Confusion', other symptoms or signs might better match your side effect. We have listed these below for your convenience. If you find a symptom that more closely resembles your experience, you can use it to identify potential medications that might be the cause.

Drugs with the Side Effect - Confusion

Acetohexamide


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Acyclovir


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Adalimumab


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

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Ademetionine


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Aducanumab


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Albendazole


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

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Aldesleukin


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Alprazolam


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Amantadine


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

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Aminocaproic Acid


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Amiodarone


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Amitriptyline


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Amobarbital


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Amoxapine


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Amoxicillin


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Amoxicillin and Clavulanate Potassium


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Ampenavir


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Amphotericin B


Most other Common Side Effects: Swelling, rapid weight gain, increased urination, pale or yellowed skin, dark colored urine, fever, weakness

Bexarotene


Most other Common Side Effects: Underactive thyroid, headache, weakness, rash, anemia, nausea, infection, swelling in the extremities, abdominal pain, dry skin, diarrhea, fatigue/lethargy, liver function test abnormalities

Bicalutamide


Most other Common Side Effects: Underactive thyroid, headache, weakness, rash, anemia, nausea, infection, swelling in the extremities, abdominal pain, dry skin, diarrhea, fatigue/lethargy, liver function test abnormalities

Brompheniramine


Most other Common Side Effects: Drowsiness, dizziness, dryness of mouth, nose, and throat, nausea, vomiting, abdominal cramps, headache and chest congestion

Chlorpheniramine- Hydrocodone- Pseudoephedrine


Most other Common Side Effects: Sedation, drowsiness, mental clouding, lethargy, impairment of mental and physical performance, anxiety, fear, dizziness, psychic dependence, mood changes, nervousness, sleeplessness, visual disturbances, headache, emotion, involuntary repetitive movements of face, lightheadedness, agitation, restlessness, irritability, tremor

Cidofovir


Most other Common Side Effects: Sedation, drowsiness, mental clouding, lethargy, impairment of mental and physical performance, anxiety, fear, dizziness, psychic dependence, mood changes, nervousness, sleeplessness, visual disturbances, headache, emotion, involuntary repetitive movements of face, lightheadedness, agitation, restlessness, irritability, tremor

Cimetidine


Most other Common Side Effects: Sedation, drowsiness, mental clouding, lethargy, impairment of mental and physical performance, anxiety, fear, dizziness, psychic dependence, mood changes, nervousness, sleeplessness, visual disturbances, headache, emotion, involuntary repetitive movements of face, lightheadedness, agitation, restlessness, irritability, tremor

Citalopram


Most other Common Side Effects: Sedation, drowsiness, mental clouding, lethargy, impairment of mental and physical performance, anxiety, fear, dizziness, psychic dependence, mood changes, nervousness, sleeplessness, visual disturbances, headache, emotion, involuntary repetitive movements of face, lightheadedness, agitation, restlessness, irritability, tremor

Nabilone


Most other Common Side Effects: Dizziness, drowsiness, dry mouth, elevated mood, anxiety, lightheadedness, headache, trouble sleeping, memory problems

Nefazodone


Most other Common Side Effects: Drowsiness, dry mouth, dizziness, constipation, weakness, lightheadedness, blurred vision

Nefopam


Most other Common Side Effects: Drowsiness, lightheadedness, dry mouth, pink colored urine, nervousness, difficulty in urination, nausea, fainting

Nelarabine


Most other Common Side Effects: Drowsiness, lightheadedness, dry mouth, pink colored urine, nervousness, difficulty in urination, nausea, fainting

Orphenadrine


Most other Common Side Effects: Agitation, drowsiness, dizziness, emotion, hallucinations

Oseltamivir


Most other Common Side Effects: Agitation, drowsiness, dizziness, emotion, hallucinations

Oxaprozin


Most other Common Side Effects: Agitation, drowsiness, dizziness, emotion, hallucinations

Piribedil


Most other Common Side Effects: Nausea, vomiting, dizziness, drowsiness and movement disorder

Polifeprosan 20 with Carmustine


Most other Common Side Effects: Nausea, vomiting, dizziness, drowsiness and movement disorder

Thalidomide


Most other Common Side Effects: Drowsiness, dizziness, constipation, difficulty in breathing and rash

Thiabendazole


Most other Common Side Effects: Drowsiness, dizziness, constipation, difficulty in breathing and rash

Thioridazine


Most other Common Side Effects: Drowsiness, dizziness, constipation, difficulty in breathing and rash

Thyroglobulin


Most other Common Side Effects: Drowsiness, dizziness, constipation, difficulty in breathing and rash

Timolol Oral


Most other Common Side Effects: Drowsiness, dizziness, constipation, difficulty in breathing and rash

Tolcapone


Most other Common Side Effects: Movement disorder, nausea, sleep disorder, involuntary movements, excessive dreaming, loss of appetite, muscular cramps, orthostatic complaints, drowsiness, diarrhea, dizziness, headache, hallucinations, vomiting, constipation, fatigue, upper respiratory tract infection, falling, increased sweating, urinary tract infection, dry mouth, abdominal pain and urine discoloration

Tolterodine


Most other Common Side Effects: Movement disorder, nausea, sleep disorder, involuntary movements, excessive dreaming, loss of appetite, muscular cramps, orthostatic complaints, drowsiness, diarrhea, dizziness, headache, hallucinations, vomiting, constipation, fatigue, upper respiratory tract infection, falling, increased sweating, urinary tract infection, dry mouth, abdominal pain and urine discoloration

Topiramate


Most other Common Side Effects: Movement disorder, nausea, sleep disorder, involuntary movements, excessive dreaming, loss of appetite, muscular cramps, orthostatic complaints, drowsiness, diarrhea, dizziness, headache, hallucinations, vomiting, constipation, fatigue, upper respiratory tract infection, falling, increased sweating, urinary tract infection, dry mouth, abdominal pain and urine discoloration

Torsemide


Most other Common Side Effects: Movement disorder, nausea, sleep disorder, involuntary movements, excessive dreaming, loss of appetite, muscular cramps, orthostatic complaints, drowsiness, diarrhea, dizziness, headache, hallucinations, vomiting, constipation, fatigue, upper respiratory tract infection, falling, increased sweating, urinary tract infection, dry mouth, abdominal pain and urine discoloration

References

  1. https://www.fda.gov/drugs/information-consumers-and-patients-drugs/finding-and-learning-about-side-effects-adverse-reactions
  2. https://nctr-crs.fda.gov/fdalabel/ui/search
  3. https://dailymed.nlm.nih.gov/dailymed/
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