Valacyclovir is a generic drug that’s prescribed for certain viral infections in adults and certain children. As with other drugs, valacyclovir can cause side effects, such as headache and nausea.

Blood pressure medications are commonly prescribed and are usually well-tolerated, but there are some serious side effects you should know about.

Naltrexone is a generic prescription drug used to treat certain substance use disorders. Naltrexone oral tablet does not come in any brand-name versions. This drug can cause mild to serious side ...

Expanded use of GLP-1 drugs may lead to more side effects, already the subject of thousands of lawsuits now moving through ...

Different blood sugar medications can cause different side effects. Learn more about some of the serious possible side effects of common diabetes medications here.

Wellbutrin (bupropion) is a prescription drug that’s used to treat depression. Wellbutrin can cause side effects that range from mild to serious. Examples include dry mouth, changes in weight, and ...

Some people have allergies to specific medications, and others may experience idiosyncratic reactions to individual drugs. But differences in the way your body metabolizes drugs might render you prone ...

Glucagon-like peptide-1 (GLP-1) agonists have transformed weight loss treatments. However, about half of the patients who take these drugs stop within a year because of unwanted side effects. 1,2 For ...

Consumer Reports has no financial relationship with any advertisers on this site. You might not think twice about reaching for an over-the-counter pain reliever for a headache, or an OTC antihistamine ...

Researchers have discovered how drugs can affect various membrane-spanning proteins in addition to their intended target, potentially causing unwanted side effects. The results illuminate one of the ...

Prednisone can cause certain side effects (also called adverse effects), some of which are more common than others. These side effects may be temporary, lasting a few days to weeks. However, if the ...