Search results below include Worst Pills, Best Pills Newsletter Articles where your
selected drug is a primary subject of discussion.
August 2023
Patients taking the stomach-acid–suppressing drug cimetidine, which is available over the counter as a generic, should be aware of its clinically important interactions with many other prescription medications.
January 2023
Patients taking the drug sotalol (BETAPACE, BETAPACE AF, SORINE, SOTYLIZE) should be aware that it has clinically important and potentially dangerous interactions with many other prescription medications.
August 2022
Patients taking the oral combination antiviral drug PAXLOVID (nirmatrelvir and ritonavir), which is used to treat COVID-19, should be aware that it has clinically important and potentially dangerous interactions with many other prescription medications.
April 2022
Medications are a leading cause of sexual dysfunction in men. Knowing which drugs prescribed or recommended by your doctor can cause sexual dysfunction will allow you to take steps to prevent or minimize this common, often troubling adverse drug effect.
January 2022
Numerous prescription and over-the-counter drugs can cause or exacerbate constipation. Knowing which medications prescribed or recommended by your doctor cause constipation will allow you to take steps to prevent or minimize this common, troubling adverse drug effect.
June 2021
Patients taking the commonly prescribed antibiotic erythromycin should be aware that it has clinically important interactions with many other prescription medications.
April 2021
Patients taking the commonly prescribed drug atorvastatin, which is a member of the statin family of cholesterol-lowering drugs, should be aware that it has clinically important interactions with many other prescription medications.
December 2020
Patients taking the widely prescribed calcium channel blocker diltiazem (CARDIZEM, CARTIA XT, TAZTIA XT, TIAZAC) should be aware that it has clinically important interactions with many other prescription medications.
June 2020
Patients taking the commonly prescribed cholesterol-lowering drug simvastatin (FLOLIPID, VYTORIN, ZOCOR) should be aware that it has clinically important interactions with many other prescription medications.
April 2020
Patients taking the commonly prescribed antibiotic clarithromycin (BIAXIN XL) should be aware that it has clinically important interactions with many other prescription medications.
October 2019
Next to Parkinson’s disease, drug-induced parkinsonism is the second most common cause of parkinsonism, accounting for about 8-12% of all parkinsonism cases. Find out which commonly used drugs can cause this condition.
June 2019
Patients who have difficulty swallowing pills will sometimes crush tablets or open capsules and sprinkle the resulting powder, fragments or granules into food or liquids. Other patients will resort to chewing their pills before swallowing. Find out the dangers posed by taking such measures.
May 2019
For men, abnormally large breasts can be distressing and embarrassing. Find out about the numerous drugs that can cause breast enlargement in men.
May 2019
Read about the many prescription medications that can interact in dangerous ways with colchicine, a commonly used drug for treatment of acute gout attacks.
April 2019
Drugs are the most frequent cause of taste disturbances. In this article, we identify more than 60 commonly used prescription medications that have been linked to problems with taste.
January 2019
Read about the many prescription and over-the-counter medications that can interact in dangerous ways with clopidogrel, a widely used anti-platelet drug.
November 2018
Read about the numerous medications that can interact with digoxin, a drug commonly prescribed for heart failure and atrial fibrillation. These interactions can result in either digoxin toxicity or decreased digoxin effectiveness depending on the other drug being used concomitantly.
February 2018
Abnormal involuntary movements (movement disorders) occur as adverse events associated with many widely used medications and can cause substantial hardship for affected individuals. Find out which drugs are associated with these adverse effects.
July 2016
Summer is a terrific time for healthy outdoor activities, such as walking, hiking, biking and swim¬ming. But for an unlucky few, certain medications can lead to adverse skin reactions following exposure to the sun. Find out whether you are at risk and how to protect yourself.
February 2015
Patients who have difficulty swallowing pills will sometimes crush tablets or open capsules and sprinkle the resulting powder, fragments or granules into food or liquids. Other patients will resort to chewing their pills before swallowing. Find out the dangers posed by taking such measures.
August 2014
Atrial fibrillation is one of the most common heart rhythm disorders, afflicting more than 2.7 million Americans. Learn about the most recent guidelines for treating this disorder, issued by the American College of Cardiology and the American Heart Association, and about Public Citizen’s Health Research Group’s assessment of those guidelines.
July 2012
This article updates and expands our earlier list of drugs that can have harmful interactions with grapefruit juice. The list now includes 82 different drugs.
May 2012
The article lists many drugs that treat high blood pressure but can also increase the risk of gout. If you have gout, ask your doctor whether your dose of any of these drugs could be reduced or whether you should switch to a medication with a lower gout risk. However, hypertension control is of utmost importance.
November 2010
This article discusses 36 drugs that, when used by people also using a corticosteroid, can either cause toxic interactions with the steroid or decrease the steroid's effectiveness.
October 2010
A study discovered that more than 1 out of every 10 people who went to a Parkinson’s disease center was found to have drug-induced Parkinsonism. These people were misdiagnosed as having the more common illness, Parkinson’s disease, which is irreversible and has unknown causes.
September 2010
The article list 34 other medications that can harmfully interact with sleeping pills, increasing their sedative properties and causing excessive sedation. Excessive sedation at night could increase the risk of falls, should the person get up in the night for some reason. Moreover, excessive sedation causing respiratory depression could be dangerous for people with certain disorders, such as lung disease.
August 2010
The article lists 34 prescription drugs that can have harmful interactions with vincristine. Recognizing signs of toxicity from vincristine early, as described in the article, is urgent because most of the side effects are reversible when the interacting drug is stopped and the patient receives corrective treatment.
May 2010
After explaining the symptoms of low blood sugar (hypoglycemia) the article lists 42 prescription drugs that can interact with one or more diabetes drugs to increase the chance of hypoglycemia.
April 2010
The article lists 53 drugs that can interact with the psychiatric drug ABILIFY to either increase the amount in the body, which can lead to toxicity, or decrease the amount rendering the drug less effective.
March 2010
The article lists 35 different interacting drugs that can either increase blood levels of digoxin, leading to the serious problem of digitalis toxicity or decrease blood levels, causing the drug to be less effective.
February 2010
Quetiapine (SEROQUEL) can interact with 26 different drugs, increasing its blood levels and causing dangerous side effects such as slowed breathing, dizziness and fainting. The article also lists 10 other interacting drugs that can result in lower blood levels, rendering the drug less effective.
September 2009
The article lists 24 drugs that can increase the toxicity of oxycodone if taken together with the drug and 11 other drugs that can weaken its effectiveness as a painkiller if they are simutaneously used.
July 2009
The article lists 38 prescription drugs that can harmfully interact with statin drugs. The article also advises that No matter what statin you are taking and regardless of any interacting drugs, you should notify your prescriber immediately if you develop muscle pain, weakness or a darkening of your urine.
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June 2009
Taking alpha-blockers in combination with drugs for erectile dysfunction and with other drugs can cause dizziness and fainting.
In this article we will discuss alfuzosin (UROXATRAL), doxazosin (CARDURA), tamsulosin (FLOMAX) and terazosin (HYTRIN) and drugs with which they can have harmful interactions.
December 2008
This article lists 27 drugs that can have life-threatening interactions with the widely-used gout drug, colchicine, resulting in dangerously elevated levels of colchicine.
Too much colchicine in the body leads to toxicity such as fever, vomiting, diarrhea, abdominal pain and muscle pains.
Even worse, it can impair the bone marrow’s ability to make red and white blood cells, causing severe anemia and dangerously low numbers of white blood cells. When the number of white blood cells is reduced, your body may have difficulty fighting infections. Most people who have died from colchicine toxicity have had bone marrow toxicity or had preexisting kidney problems.
Every patient on colchicine — whether on other drugs or not — should be alert for evidence of colchicine toxicity as described above.
May 2008
This article lists more than 60 prescription drugs that can interact with calcium channel blocking drugs such as amlodipine (NORVASC),diltiazem (CARDIZEM, DILACOR XR TIAZAC)or nifedipine (PROCARDIA)to either cause toxicity or to lessen the effectiveness of the calcium channel blocking drugs. Included in the lists are a number of drugs that we list in Worst Pills, Best Pills as DO NOT USE or LIMITED USE drugs. The article also explains the different kinds of toxicity that can ensue from these interactions.
February 2004
The January 5th issue of the Medical Letter, a widely respected source of independent information about pharmaceuticals and dietary supplements, has a review of the increasingly researched problem of the interaction between grapefruit juice and many prescription and over-the-counter drugs. Like most interactions between chemicals in the body, this one involves the impairment, by grapefruit juice, of the body’s ability to metabolize many drugs, leading to higher than expected — and sometimes dangerous — levels of these drugs.This article lists the drugs.
September 2003
DO NOT stop taking any of the drugs listed in the table without first consulting your physician.
You should report any alteration in your sense of taste to your physician if you are taking a drug.
December 2002
Ephedra, or ma huang, the natural form of the stimulant ephedrine, the most infamous and dangerous drug found in dietary supplements sold for weight loss, is at last beginning to receive the negative notoriety it deserves. Ephedra causes heart attacks and strokes because of its ability to raise blood pressure and heart rate. Article discusses the risk of other dietary supplements.
October 2002
This is the first of a two part series on drug induced psychiatric symptoms that is based on the July 8, 2002 issue of The Medical Letter on Drugs and Therapeutics. Regular readers of Worst Pills, Best Pills News will recognize The Medical Letter as a reference source written for physicians and pharmacists that we often use because of its reputation as an objective and independent source of drug information. The article lists the drugs and their psychiatric adverse effects.
June 2002
Grapefruit juice can interact with a number of therapeutically important drugs that could lead to the possibility of toxicity. These drugs are listed in the article.
January 2001
“You, or at least many of your colleagues, have failed to provide optimal care to your patients with high blood pressure.” This stinging critique of physician prescribing practices starts off an editorial in the Journal of General Internal Medicine for October 2000 that commented on a Harvard Medical School study of high blood pressure in older adults that appeared in the same issue.