| Toxic side effects of phenytoin include nystagmus, dysarthria, diplopia, ataxia, and exacerbation of seizures. |
| Other episodic neurological disorders include periodic paralysis, hemiplegic migraine, and episodic ataxia. |
| The physical examination demonstrated horizontal and vertical nystagmus, ataxia and peripheral neuropathy. |
| Other manifestations of the disease include osteopenic bone disease, infertility, tetany, ataxia and neurologic disorders. |
| Over time, diverse clinical symptoms develop, among them peripheral neuropathies, ataxia, loss of position sense, and dementia. |
| In 1921, Guillain described a reversible form of acute tabetic ataxia that develops abruptly and improves completely on early suitable treatment. |
