Some of the more common side effects of weight-loss surgery can be difficulty digesting starchy foods and protein, which can lead to other physical conditions including hair loss, fatigue, swelling and muscle weakness.

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It sounds too good to be true: Throw back a few pills each day, and enjoy a remarkable boost in mental health while suffering none of the side effects common to mainstream pharmaceutical interventions.

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The most common reason for leaving the clinical trial because of side effects was a mix of mental side effects, including depression, anxiety and irritability.

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But interferon-ribavirin regimens clear the most common strain only half the time at most and cause an array of nasty side effects.

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The most common cause of the loss of this function in the U.S. is side effects from the powerful antibiotic gentamicin.

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The most common side effects reported in the study were: were dizziness (seen in 10.4% of those on Ampyra, 2.5% of those on placebo), nausea (3.9% Ampyra, 6.2% placebo), fatigue (5.2% Ampyra, 3.7% placebo), insomnia (5.2% dalfampridine-ER, 2.5% placebo) and arthralgia (2.6% Ampyra, 3.7% placebo).

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