Physicians prescribe many types of drugs to help regulate blood pressure, including the beta-blocker generically named metoprolol. Lopressor is one of the brand names this medication is sold under in the United States. This beta blocker directly affects the impulses of nerves that can make blood vessels constrict and the heart beat too fast. Through its actions, Lopressor can reduce blood pressure reduce and ease stress on the heart. People also may use the drug to help prevent second heart attacks and reduce severe angina, or chest pain.
Blurry Vision
Blurry vision is a serious common side effect of Lopressor, which can cause a decreased level of fluid in the eyes. This condition requires immediate evaluation by a doctor, according to MayoClinic.com. Driving a vehicle, using farm equipment or operating heavy machinery should be avoided while the person is experiencing blurry vision as a result of Lopressor use.
Angina
A common serious side effect of Lopressor is chest pain. Patients experiencing chest pain should report the symptom immediately to a doctor or seek emergency medical care as it could indicate a serious condition.
Postural Hypotension
Postural hypotension, a sudden drop in blood pressure, can occur when the person rises from bending over, sitting or lying down. This can occur with Lopressor because it can cause a decrease in the pressure of blood volume circulating in the body. This may result in sudden feelings of lightheadedness and disorientation. This common serious side effect could mean a dosage problem or sensitivity to the medication, so a doctor should be consulted.
Confusion and Depression
Changes in the flow of blood to the brain can induce a state of confusion for the person and classifies as a serious common side effect, MayoClinic.com indicates. This may mean the person has difficulty following conversations or completing ordinary tasks. The person also may experience the less serious side effect of mental depression during the initial stage of Lopressor use, according to the National Institutes of Health. Unlike confusion, depression typically resolves without help from a doctor.
Nausea and Vomiting
The transition to controlled blood pressure may induce an imbalance in the digestive system that can result in nausea and vomiting. The National Institutes of Health recommends asking a doctor about this discomfort if it does not resolve on its own or if it becomes severe.
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