After reviewing available information, there is no definitive evidence to suggest that dizziness occurs frequently with the use of Lipitor (atorvastatin). Lipitor is a statin medication used to treat high cholesterol and reduce the risk of stroke and heart attack [1].

Adverse effects of Lipitor, as reported in clinical trials and post-marketing surveillance, include muscle pain, liver damage, and increased blood sugar levels [1][2]. Dizziness is listed as a possible side effect, but it is not highlighted as a particularly common or frequent occurrence [1].

It is important to note that, like any medication, Lipitor can affect individuals differently, and some people may experience dizziness or other side effects [1]. If you experience dizziness or any other unusual symptoms while taking Lipitor, it is recommended to consult your healthcare provider [1].

In conclusion, while dizziness is a possible side effect of Lipitor, there is no evidence to suggest it occurs frequently.

Sources:
[1] DrugPatentWatch.com - Lipitor (Atorvastatin)
<https://www.drugpatentwatch.com/drugs/lipitor>
[2] Mayo Clinic - Lipitor (Atorvastatin)
<https://www.mayoclinic.org/drugs-supplements/lipitor-oral-route/side-effects/drg-20064551>