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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

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There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

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Approximately 25% of all reported medication errors result from some kind of name confusion.

The medical assistant reviews the PDR for information related to a drug. The medical assistant reviews the PDR for information related to a drug.
Mechanisms of action of coagulation modifiers. Mechanisms of action of coagulation modifiers.
Mechanisms of action of antifungal drugs. Mechanisms of action of antifungal drugs.
A schematic of a Stanadyne diesel fuel injection pump assembly showing all of the related ... A schematic of a Stanadyne diesel fuel injection pump assembly showing all of the related ...
Action of bile salts in emulsifying fats in the intestine Action of bile salts in emulsifying fats in the intestine
A model for helicase action A model for helicase action
Video: How Hemoglobin Picks Up and Delivers Oxygen

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