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Symadine Brand names, Symadine Analogs

Symadine Brand Names Mixture

  • No information avaliable

Symadine Chemical_Formula


Symadine RX_link

Symadine fda sheet

Symadine FDA

Symadine msds (material safety sheet)

Symadine MSDS

Symadine Synthesis Reference

No information avaliable

Symadine Molecular Weight

151.249 g/mol

Symadine Melting Point

180 oC

Symadine H2O Solubility

6290 mg/L (freely soluble)

Symadine State


Symadine LogP


Symadine Dosage Forms

Capsule (100mg) and syrup

Symadine Indication

For the chemoprophylaxis, prophylaxis, and treatment of signs and symptoms of infection caused by various strains of influenza A virus. Also for the treatment of parkinsonism and drug-induced extrapyramidal reactions.

Symadine Pharmacology

Amantadine is an antiviral drug which also acts as an antiparkinson agent, for which it is usually combined with L-DOPA when L-DOPA responses decline (probably due to tolerance). It is a derivate of adamantane, like a similar drug rimantadine. The mechanism of action of amantadine in the treatment of Parkinson's disease and drug-induced extrapyramidal reactions is not known. It has been shown to cause an increase in dopamine release in the animal brain, and does not possess anticholinergic activity.

Symadine Absorption

Amantadine is well absorbed orally from the gastrointestinal tract.

Symadine side effects and Toxicity

Deaths have been reported from overdose with amantadine. The lowest reported acute lethal dose was 2 grams. Drug overdose has resulted in cardiac, respiratory, renal or central nervous system toxicity. Cardiac dysfunction includes arrhythmia, tachycardia and hypertension. Pulmonary edema and respiratory distress (including ARDS) have been reported. Renal dysfunction including increased BUN, decreased creatinine clearance and renal insufficiency can occur. Central nervous system effects that have been reported include insomnia, anxiety, aggressive behavior, hypertonia, hyperkinesia, tremor, confusion, disorientation, depersonalization, fear, delirium, hallucination, psychotic reactions, lethargy, somnolence and coma. Seizures may be exacerbated in patients with prior history of seizure disorders. Hyperthermia has also been observed in cases where a drug overdose has occurred.

Symadine Patient Information

No information avaliable

Symadine Organisms Affected

Humans, other mammals and virus