Statins remain the cornerstone of heart disease prevention. More than 50 million Americans take a drug such as atorvastatin, rosuvastatin or simvastatin every day. These medications lower cholesterol extremely well.<\/p>\n
Many cardiologists believe that statins have few, if any, side effects. One especially controversial symptom that our readers have reported is cognitive dysfunction. It can manifest in many different ways.<\/p>\n
In May 2000, we received the first indication that statins might affect the brain: \u201cLast fall, my doctor prescribed atorvastatin, and after several months, I found that I was having trouble remembering names and coming up with the right word. At dinner once, I said, \u2018Please pass the elephant,\u2019 though I wanted the bread. I told my husband I thought I\u2019d had a stroke.<\/p>\n
\u201cIn January, a friend came to visit. She was worried about her memory and couldn\u2019t think of her daughter\u2019s name on the telephone. She, too, was on atorvastatin.<\/p>\n
\u201cI asked my doctor to prescribe a different cholesterol medicine. Within a couple of weeks, I was more mentally alert. But my friend (still on atorvastatin) was in worse shape and afraid she would lose her job. Her doctor said forgetfulness could not be due to the drug. She finally stopped taking this statin and is now much sharper.<\/p>\n
\u201cI am concerned that some people taking atorvastatin might think such a reaction was just due to getting older. Is this side effect well known?\u201d<\/p>\n
In 2000, there was no mention of cognitive impairment in the prescribing information for most statins. Now, however, the Food and Drug Administration requires this warning for atorvastatin:<\/p>\n
\u201cThere have been rare reports of cognitive impairment (e.g., memory loss, forgetfulness, amnesia, memory impairment, confusion) associated with the use of all statins. Cognitive impairment was generally nonserious and reversible upon statin discontinuation, with variable times to symptom onset (one day to years) and symptom resolution (median of three weeks).\u201d<\/p>\n
Many health care professionals dismiss such complications. Some insist that they are not real because they did not show up in the original randomized-controlled trials necessary for FDA approval. Others maintain that if such complications occur, they are extremely rare.<\/p>\n
A new study sheds light on a possible mechanism to explain how statins might lead to cognitive difficulties. Researchers writing in the journal NeuroToxicology (March 2026) report that rosuvastatin affects the function of brain cells called microglia. These cells patrol the brain, removing debris and fighting infections. They also control inflammation and help keep neurons healthy and working well.<\/p>\n
The research showed that rosuvastatin interferes with microglia signaling. As a result, these cells are less able to move around the brain to address trouble. They also age far more quickly and become less able to calm inflammation or remove pathogens. The conclusion: \u201cThese findings suggest that rosuvastatin-induced disruption of microglial function may contribute to cognitive impairment.\u201d<\/p>\n
This new research may help explain why so many of our readers have complained about brain fog, memory problems and mental confusion. There are even reports of transient global amnesia (TGA) in which people temporarily forget key aspects of their lives.<\/p>\n
Fortunately, these reactions do not appear to be common. Most people can take a statin without experiencing cognitive impairment. But the new research suggests that prescribers should take this complaint seriously, now that there is a plausible explanation for it.<\/p>\n
* * *<\/p>\n
In their column, Joe and Teresa Graedon answer letters from readers. Write to them in care of King Features, 628 Virginia Drive, Orlando, FL 32803, or email them via their website: www.PeoplesPharmacy.com. Their newest book is \u201cTop Screwups Doctors Make and How to Avoid Them.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"Statins remain the cornerstone of heart disease prevention. More than 50 million Americans take a drug such as…\n","protected":false},"author":2,"featured_media":396971,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[103,61,60,371],"class_list":["post-396970","post","type-post","status-publish","format-standard","has-post-thumbnail","category-medication","tag-health","tag-ie","tag-ireland","tag-medication"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/396970","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/comments?post=396970"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/396970\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media\/396971"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media?parent=396970"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/categories?post=396970"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/tags?post=396970"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}