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What symptoms can Amantadine cause?

Amantadine Safety Information and Side Effects

Amantadine Safety Information

Hallucination ( 22 reports)    ➢ More


This case suggests a potential Amantadine Hydrochloride Hallucination side effect(s) that can have serious consequences. A patient from US (weight:NA) was diagnosed with the following health condition(s): movement disorder,musculoskeletal disorder,hypertension,hyperthyroidism and used Amantadine Hydrochloride (dosage: 100 Mg, Bid) starting 2012. Soon after starting Amantadine Hydrochloride the patient began experiencing various side effects, including:
  • Hallucination
Drugs used concurrently:
  • Lyrica (75 Mg, Bid)
  • Metoprolol (Unk)
  • Tapazole
  • Although Amantadine Hydrochloride demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Hallucination, may still occur.

    Agitation ( 17 reports)    ➢ More

    Serotonin Syndrome, Encephalopathy, Agitation, Delusion, Altered State Of Consciousness, Hyperhidrosis, Hyperthermia, Blood Pressure Abnormal, Myoclonus

    Adverse event was reported on Feb 07, 2014 by a Female taking Amantadine (Dosage: 100 Mg, Bid) . Location: FR , 75 years of age, Directly after treatment started, patient experienced the unwanted or unexpected Amantadine side effects: serotonin syndrome, encephalopathy, agitation, delusion, altered state of consciousness, hyperhidrosis, hyperthermia, blood pressure abnormal, myoclonus.
    Associated medications used:
    • Entacapone-levodopa-carbidopa
    • Sertraline (50 Mg, Daily)
    • Sertraline (100 Mg, Daily)
    • Rasagiline (1 Mg, Daily)

    Convulsion ( 17 reports)    ➢ More

    Completed Suicide, Ventricular Tachycardia, Acute Respiratory Distress Syndrome, Hypoxia, Septic Shock, Convulsion, Cardiac Arrest, Disorientation

    This Convulsion problem was reported by a health professional from US. A 33-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): NA.On NS a consumer started treatment with Amantadine (dosage: 62.5 Mg, Unk). The following health products were being taken at the same time:
  • Clonazepam (1.5 Mg, Unk)
  • Diazepam (15 Mg, Unk)
  • When commencing Amantadine, the patient experienced the following unwanted symptoms /side effects:
    • Completed Suicide
    • Ventricular Tachycardia
    • Acute Respiratory Distress Syndrome
    • Hypoxia
    • Septic Shock
    • Convulsion
    • Cardiac Arrest
    • Disorientation
    The patient was hospitalized. Although all health products are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Convulsion, may become evident only after a product is in use by the general population.

    Fall ( 17 reports)    ➢ More

    Fall, Jaw Fracture

    A case of a 50-year-old female patient (weight: NA) from UNITED STATES was presented. The patient developed the following symptoms/conditions: NA and was treated with Amantadine Hcl (dosage: 100 Mg, Unk) starting NS. Concurrently used drugs:
  • Ampyra (10 Mg, Unk)
  • Betaseron (0.25 Mg, Qod)
  • Alendronate Sodium
  • Calcium D
  • Soon after that, the subject experienced the following of symptoms:
    • Fall
    • Jaw Fracture
    The patient was hospitalized. This opens a possibility that Amantadine Hcl could cause Fall and that some female subjects may be more susceptible.

    Asthenia ( 16 reports)    ➢ More

    Asthenia, Fatigue, Visual Acuity Reduced

    on Jun 17, 2013 a male from US , 44 years of age, was diagnosed with and was treated with Amantadine Hydrochloride. Directly after treatment started, patient experienced the unwanted or unexpected Amantadine side effects: asthenia, fatigue, visual acuity reduced. Amantadine Hydrochloride dosage: 100 Mg, Bid.
    Associated medications used:
    • Baclofen (30 Mg, Bid)

    Common Amantadine Side Effects

    Click to view detailed reports:

    Hallucination (22)
    Fall (17)
    Convulsion (17)
    Agitation (17)
    Asthenia (16)
    Hallucination, Visual (16)
    Confusional State (16)
    Gait Disturbance (13)
    Corneal Oedema (13)
    Multiple Sclerosis Relapse (12)
    Myoclonus (12)
    Dyskinesia (12)
    Insomnia (11)
    Tremor (11)
    Delirium (9)
    Completed Suicide (9)
    Disturbance In Attention (9)
    Hallucination, Auditory (9)
    Dizziness (9)
    Somnolence (9)
    Hallucinations, Mixed (9)
    Mental Status Changes (8)
    Depression (8)
    Overdose (8)
    Psychotic Disorder (8)
    Vision Blurred (8)
    Pyrexia (8)
    Fatigue (7)
    Inappropriate Antidiuretic Hormone Secretion (7)
    Oedema Peripheral (7)
    Speech Disorder (7)
    Serotonin Syndrome (7)
    Pain In Extremity (7)
    Cardiac Arrest (6)
    Arthralgia (6)
    Condition Aggravated (6)
    Blood Pressure Increased (6)
    Disorientation (6)
    Toxicity To Various Agents (6)
    Neuroleptic Malignant Syndrome (6)
    Dysstasia (6)
    Tongue Biting (5)
    Urinary Tract Infection (5)
    Renal Failure Acute (5)
    Urinary Incontinence (5)
    Muscular Weakness (5)
    Lethargy (5)
    Loss Of Consciousness (5)
    Nausea (5)
    Progressive Multifocal Leukoencephalopathy (5)

    ➢ More

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    Amantadine Forum

    Did You Have a Amantadine Side Effect?

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