When used for chronic pain, ketamine has also been reported to cause dizziness, lightheadedness and nausea.

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These include shortness of breath or wheezing, weakness, dizziness, lightheadedness, fainting or near fainting, and chest pain or discomfort.

CNN: Heart arrhythmias

Side effects of Diprivan may include dizziness and lightheadedness.

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As he worked in the Sandoz research laboratory in Basel in Switzerland on April 16th 1943, isolating and synthesising the unstable alkaloids of the ergot fungus, Albert Hofmann began to feel a slight lightheadedness.

ECONOMIST: Albert Hofmann, chemist, died on April 29th, aged 102

In 2010, he had said he had a hamstring injury and lightheadedness during a June minicamp, later admitting that he exaggerated the severity of his condition to send the team a message about his dissatisfaction with his contract.

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The researchers did note that many of the cases of lightheadedness could be due to the relatively low oxygen content of cabin air-roughly equal to 8, 000 feet above sea level-or to passengers experiencing dehydration during long or multiple flights.

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