Alcohol

Alcohol is used as preservative.

Alcohol stimulates GABA at GABA-A receptors and inhibits the opening of NMDA receptor/channels by preventing glutamate. As an antidote, it inhibits the rapid metabolism of methanol to toxic intermediates eg, formaldehyde and formic acid due to its greater affinity to alcohol dehydrogenase. Thus, the toxicity of methanol is delayed or to an extent hindered.

Nausea, Vomiting, Headache, Dizziness, Tremors, Impaired judgment, Visual impairment, Impaired coordination, Slurred speech, Nystagmus (involuntary eye movement)