Common side effects of medications for neurological conditions include all of the following EXCEPT?

Muscle spasticity is not typically considered a common side effect of medications used to treat neurological conditions. In fact, many medications prescribed for neurological disorders, such as spasticity or muscle relaxants, are intended to alleviate muscle spasticity rather than cause it.

On the other hand, the other options represent side effects commonly associated with various neurological medications. For instance, dry mouth can result from anticholinergic medications, which are often used in treating neurological conditions. Nightmares may occasionally occur with certain medications, particularly those affecting neurotransmitters in the brain. Lack of muscle coordination, or ataxia, can be a side effect of medications that influence motor control and balance. Each of these reflects the various ways drugs can impact neurological function and the central nervous system.