Please wait...

Amantadine Hcl

Amantadine hcl Prescription
Generic Name: amantadine (a MAN ta deen)
Brand Name: Gocovri, Osmolex ER, Symmetrel
Physician reviewed amantadine patient information - includes amantadine description, dosage and directions.

Average Savings for amantadine hcl (generic): 31.85%
  • Prescription Settings
  • X
  • medly Free, same-day prescription delivery to your doorstep is available in your area.
  • Learn more
  • Local Pharmacy Pickup available at . Pick up your medication at any of our participating pharmacies.
  • Mail Order Home Delivery available at , the easiest way to receive your medications.

Amantadine Hcl Coupons & Prices

Set your location
for drug prices near you

Enter your zip code

Please wait while the prices are loaded...
Click here to try again.

Don’t see your pharmacy listed? Most pharmacies accept our discounts, so have your pharmacist enter this coupon to see if you will save money:

Amantadine Hcl Drug Information:

Amantadine is an antiviral medicine that blocks the actions of viruses in your body. Amantadine is used to treat or prevent influenza A in adults and children. Amantadine may not be effective during every flu season because certain strains of the virus may be resistant to amantadine. Amantadine should not be used in place of getting a yearly flu shot. The Centers for Disease Control recommends an annual flu shot to help protect you each year from new strains of influenza virus. Amantadine is also used to treat Parkinson's disease and "Parkinson-like" symptoms such as stiffness or tremors, shaking, and repetitive uncontrolled muscle movements that may be caused by the use of certain drugs. Learn more

Buy Amantadine hcl Online and Amantadine hcl Delivery

USARx offers the following ways to purchase this medication. Choose the Best option for you!

  • Guaranteed Price

    Local Pharmacy Pickup of Amantadine hcl

    Pay this amount and pick up your prescription at ANY Retail pharmacy of your choice! Walgreens, CVS, Walmart, etc.

  • 30-day supply
    90-day supply

    Mail Order Home Delivery of Amantadine hcl

    The easiest way to receive your medications.

Amantadine Hcl Side Effects

For the Consumer

Applies to amantadine: oral capsule, oral capsule extended release, oral capsule liquid filled, oral syrup, oral tablet, oral tablet extended release

Side effects requiring immediate medical attention

Along with its needed effects, amantadine 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 immediately if any of the following side effects occur while taking amantadine:

More common

  • Bladder pain
  • bloody or cloudy urine
  • blurred vision
  • confusion
  • difficult, burning, or painful urination
  • dizziness or lightheadedness
  • fainting
  • falls
  • frequent urge to urinate
  • lower back or side pain
  • seeing, hearing, or feeling things that are not there
  • swelling of the hands, feet, or lower legs

Less common

  • Inability to move the eyes
  • increased blinking or spasms of the eyelid
  • muscle spasm
  • sticking out of the tongue
  • troubled breathing, speaking, or swallowing
  • uncontrolled twisting movements of the neck, trunk, arms, or legs
  • unusual facial expressions


  • Chills
  • decreased vision or any change in vision
  • difficulty in coordination
  • fever
  • increased blood pressure
  • increase in body movements
  • irritation and swelling of the eye
  • loss of memory
  • mental depression
  • seizures
  • severe mood or mental changes
  • skin rash
  • slurred speech
  • sore throat
  • thoughts of suicide or attempts at suicide
Side effects not requiring immediate medical attention

Some side effects of amantadine 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:

More common

  • Agitation
  • anxiety
  • difficulty concentrating
  • headache
  • irritability
  • loss of appetite
  • nausea
  • nervousness
  • nightmares
  • purplish red, net-like, or blotchy spots on the skin
  • trouble with sleeping

Less common

  • Constipation
  • decrease in sexual desire
  • diarrhea
  • drowsiness
  • dryness of the mouth, nose, and throat
  • false sense of well-being
  • unusual tiredness or weakness
  • vomiting

For Healthcare Professionals

Applies to amantadine: compounding powder, oral capsule, oral capsule extended release, oral syrup, oral tablet, oral tablet extended release


The more commonly reported adverse reactions have included nausea, dizziness/lightheadedness, and insomnia.

Nervous system

Common (1% to 10%): Dizziness/lightheadedness, ataxia, headache, somnolence, dystonia

Uncommon (0.1% to 1%): Weakness, slurred speech, hyperkinesia

Rare (less than 0.1%): Convulsion

Frequency not reported: Falling asleep during activities of daily living, withdrawal-emergent hyperpyrexia (a syndrome resembling neuroleptic malignant syndrome)

Postmarketing reports: Coma, delirium, hypokinesia, involuntary muscle contractions, gait abnormalities, paresthesia, EEG changes, tremor


Very common (10% or more): Hallucinations (up to 21%)

Common (1% to 10%): Insomnia, depression, anxiety, irritability, hallucinations, confusion, nervousness, abnormal dreams, agitation

Uncommon (0.1% to 1%): Psychosis, euphoria, abnormal thinking, amnesia

Rare (less than 0.1%): Suicide attempt, suicide, suicidal ideation

Postmarketing reports: Stupor, delusions, aggressive behavior, paranoid reaction, manic reaction, pathological gambling, increased libido including hypersexuality, and impulse control symptoms


Very common (10% or more): Dry mouth (up to 16%); constipation (up to 13%)

Common (1% to 10%): Nausea, anorexia, diarrhea, decreased appetite

Uncommon (0.1% to 1%): Vomiting

Postmarketing reports: Dysphagia


Very common (10% or more): Peripheral edema (up to 16%), orthostatic hypotension (up to 13%)

Uncommon (0.1% to 1%): Congestive heart failure, hypertension

Postmarketing reports: Cardiac arrest, arrhythmias including malignant arrhythmias, hypotension, and tachycardia


Common (1% to 10%): Dry eye, cataract, blurred vision

Uncommon (0.1% to 1%): Visual disturbance, punctate subeithelial or other corneal opacity, corneal edema, decreased visual acuity, sensitivity to light, optic nerve palsy

Rare (less than 0.1%): Oculogyric episodes

Postmarketing reports: Keratitis, mydriasis


Very common (10% or more): Fall (up to 13%)

Common (1% to 10%): Fatigue, contusions

Frequency not reported: Death

Postmarketing reports: Fever

Deaths have been reported from overdose with the lowest reported acute lethal dose as 1 gram. Drug overdose has resulted in cardiac, respiratory, renal, or CNS toxicity. Deaths have been reported in patients with renal impairment and attributed to drug accumulation.


Common (1% to 10%): Dry nose, cough

Uncommon (0.1% to 1%): Dyspnea

Postmarketing reports: Acute respiratory failure, pulmonary edema, tachypnea


Rare (less than 0.1%): Leukopenia, neutropenia

Postmarketing reports: Leukocytosis, agranulocytosis


Common (1% to 10%): Livedo reticularis, pigmentation disorder

Uncommon (0.1% to 1%): Skin rash

Rare (less than 0.1%): Eczematoid dermatitis

Postmarketing reports: Pruritus, diaphoresis


Postmarketing reports: Allergic reactions including anaphylactic reactions


Common (1% to 10%): Urinary tract infection, benign prostatic hyperplasia

Uncommon (0.1% to 1%): Urinary retention, decreased libido


Postmarketing reports: Elevated: CPK, BUN, serum creatinine


Rare (less than 0.1%): Reversible liver enzyme elevations

Postmarketing reports: Elevated: alkaline phosphatase, LDH, bilirubin, GGT, SGOT, and SGPT


Common (1% to 10%): Joint swelling, muscle spasms

Editorial References and Review

Medically reviewed by USARx EDITORIAL TEAM Last updated on 1/1/2020.

Source: Drugs.com Amantadine Hcl (www.drugs.com/mtm/amantadine.html).