Search results below include Worst Pills, Best Pills Newsletter Articles where your
selected drug is a primary subject of discussion.
April 2023
Patients taking the commonly prescribed calcium channel blocker felodipine should be aware that it has clinically important interactions with many other prescription medications as well as the dietary supplement St. John’s wort.
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.
November 2021
Patients taking the oral antifungal drug itraconazole (SPORANOX, TOLSURA) should be aware that it has clinically important interactions with many other prescription medications that can affect the safety or effectiveness of itraconazole or the interacting drugs.
March 2021
Patients taking the commonly prescribed epilepsy drug carbamazepine (CARBATROL, EPITOL, EQUETRO, TEGRETOL, TERIL) should be aware that it has clinically important interactions with numerous other prescription and over-the-counter 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.
December 2019
Patients taking the commonly prescribed antifungal drug fluconazole (DIFLUCAN) should be aware that it has clinically important interactions with many other prescription medications. Some of these interactions can lead to an increased risk of fatal heart rhythm abnormalities.
June 2019
Read about the many prescription drugs that can interact in dangerous ways with grapefruit or grapefruit products.
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 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.
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.
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.