Buy Symmetrel Online | Amantadine Hydrochloride
Symmetrel (Amantadine HCl) Information
Symmetrel, with the active ingredient amantadine hydrochlOride, is an antiviral drug and also used to treat symptoms of Parkinson's disease. It is available in capsule and syrup forms.
Composition
Active Ingredient: Amantadine hydrochloride.
Available Forms: Capsules (100 mg) and Oral Solution (50 mg/5 mL).
Indications
- Influenza A: Prevention and treatment of infections caused by influenza A virus.
- Parkinson's Disease: Management of symptoms such as rigidity, tremor, and bradykinesia.
- Drug-Induced Extrapyramidal Symptoms: Treatment of movement disorders caused by certain medications.
Mechanism of Action
The exact mechanism of amantadine's action in Parkinson's disease is not fully understood. It is believed to work by increasing dopamine levels in the brain, which can help improve motor control. As an antiviral, it is thought to inhibit the early, replicating stages of influenza A virus, potentially by blocking viral penetration into host cells or by inhibiting viral uncoating.
Safety Profile
Benefits: Can significantly improve motor function in Parkinson's patients and shorten the duration of influenzA A symptoms.
Common Side Effects: Nausea, dizziness, insomnia, nervousness, confusion, hallucinations, and ankle swelling.
Contraindications: Known hypersensitivity to amantadine. Use with caution in patients with severe heart, liver, or kidney disease, and those with a history of seizures or mental health issues.
Warnings: Amantadine can cause CNS effects including dizziness and confusion, impairing the ability to drive or operate machinery. Abrupt withdrawal may lead to a worsening of Parkinsonian symptoms.
Dosage Table
| Condition | Dosage | Duration |
|---|---|---|
| Influenza A (Prophylaxis) | 100 mg twice daily | During influenza season or exposure period |
| Influenza A (Treatment) | 200 mg once daily or 100 mg twice daily | 7-10 days |
| Parkinson's DiseaSe | Initially 100 mg once or twice daily, may increase to 100 mg three times daily | Continuous therapy |
| Drug-Induced Extrapyramidal Symptoms | 100 mg twice daily | As needed, typically reduced over time |
Frequently Asked Questions
1. Can Symmetrel be taken with food?
Yes, Symmetrel can be taken with or without food. However, taking it with food may help reduce nausea for some individuals.
2. How long does it take for Symmetrel to work for Parkinson's symptoms?
The onset of action can vary. Some patients may notice improvements in symptoms within a few days, while for others, it may take several weeks to experience the full therapeutic effect.
3. Is amantadine addictive?
Amantadine is not considered to be addictive in the same way as opioid drugs. However, abrupt discontinuation can lead to a worsening of symptoms, so it should be tapered off under medical supervision.
4. What should I do if I miss a dose of Symmetrel?
If you miss a dose, take it as soon as you remember, unless it is almost time for your next dose. In that case, skip the missed dose and resume your regular dosing schedule. Do not take a double dose to make up for a missed one.
