Which of the following preparations combines carbidopa and levodopa in a fixed proportion?

Gastrointestinal irritation, cardiovascular effects, including tachycardia, arrhythmias, and orthostatic hypotension, mental
disturbances, and withdrawal are possible adverse effects of:

Which of the following agents is the most helpful in counteracting the behavioral complications of levodopa?

Which of the following vitamins reduces the beneficial effects of levodopa by enhancing its extracerebral metabolism?

Which of the following drugs antagonizes the effects of levodopa because it leads to a junctional blockade of dopamine
action?

Levodopa should not be given to patients taking:

Indicate D2 receptor agonist with antiparkinsonian activity:

Which of the following antiparkinsonian drugs has also been used to treat hyperprolactinemia?

Indicate a selective inhibitor of monoamine oxidase B:

Treatment with selegilin postpones the need for levodopa for 3-9 months and may retard the progression of Parkinson′s
disease.

The main reason for avoiding the combined administration of levodopa and an inhibitor of both forms of monoamine
oxidase is:

Indicate selective catechol-O-methyltransferase inhibitor, which prolongs the action of levodopa by diminishing its
peripheral metabolism:

Which of the following antiparkinsonian drugs is an antiviral agent used in the prophylaxis of influenza A2?

The mechanism of amantadine action is:

Which of the following antiparkinsonism drugs is an anticholinergic agent?

Mental confusion and hallucinations, peripheral atropine-like toxicity (e.g. Cycloplegia, tachycardia, urinary retention, and
constipation) are possible adverse effects of:

Indicate the antiparkinsonism drug which should be avoided in patients with glaucoma:

Alcohol may cause:

Alcohol:

It is undesirable to take alcohol before going outdoors when it extremely cold, but it may be harmless to take some after
coming into a warm place from the cold.