Early symptoms include lethargy, vomiting, and deep coma.

Later symptoms can include convulsions, coma and death.

Symptoms include dramatic behavior changes, seizures, and coma.

These may include restlessness, tremors, convulsions, coma, and cardiac arrest.

Common adverse events reported in the overdose cases included cardiac arrest, coma, and convulsion.

Examples of inability to consent include coma and dementia.

Overdose symptoms may include dizziness, drowsiness, uncontrollable movements, coma, and death.

Symptoms include vomiting, lack of energy, excessive sleepiness, memory loss, confusion, and coma.

Other reported significant effects include coma, seizures, and cardiac toxicity.

Examples would include coma, cancer, leukemia, heart attack or stroke.