Search results below include Worst Pills, Best Pills Newsletter Articles where your
selected drug is a secondary subject of discussion.
December 2011
Find out about 12 drugs that can interact with widely prescribed quetiapine -- 12 million prescriptions sold in 2010 -- to cause serious, sometimes fatal, heart arrhythmias.
March 2009
Tamoxifen (NOLVADEX) is still widely and successfully used for treatment of breast cancer. However, when used along with certain other drugs, its effectiveness can be significantly reduced. The article explains how this can happen and lists 19 different drugs that can cause this serious problem if used with tamoxifen.
September 2008
Thyroid medications are among the most widely-prescribed drugs in the U.S. In this article, we review 29 different medications that can have harmful interactions with thyroid medicines such as levothyroxine (Synthroid). There are four major kinds of interaction problems that can occur:
• Certain medications can decrease the absorption of levothyroxine resulting in lower levels in the blood.
• Other medications can increase the rate at which the body gets rid of levothyroxine, also resulting in lower thyroid levels in the blood.
• Other medications can cause changes of levothyroxine binding in blood, decreasing the body's ability to use levothyroxine.
• Levothyroxine can affect the safety or effectiveness of other medications by raising or lowering the levels of these other drugs in the blood, causing them to be either infective (lower levels) or dangerous (higher levels).
August 2008
The article discusses 273 drugs that can have harmful interactions with alcohol. Also reviewed are several ways in which these harmful interactions can occur:
1/ Medications Can Increase Alcohol Blood Levels
2/ Additive effects of medications and alcohol. One of the best- known drug-alcohol interactions is when alcohol, a depressant, is taken with other sedative medications, and excessive sedation or depression of respiration can occur
3/Alcohol can increase the blood levels of some medications leading to toxicity of these drugs.
4/ Alcohol also can reduce blood levels of some medications causing them to be less effective.
Although some of the interactions between alcohol and medications mainly occur in people who drink heavily (three or more drinks on one occasion), many of these interactions may occur with much lower amounts of alcohol use, such as one to two drinks on an occasion.
We strongly urge you to tell your physicians and other health care providers how much alcohol you are drinking so they can effectively assess the risks and advise you about the safe use of alcohol and medications.
June 2008
Codeine is routinely converted to morphine in the body in order for it to be an effective painkiller. The metabolism of codeine to morphine takes place through the actions of an enzyme in the liver. The article explains how various drugs and or a person's genetic makeup can greatly influence the conversion of codeine to morphine, making its pain-relieving properties too week if not enough conversion occurs and resulting in what amounts to an overdose at the recommended dose if the conversion to morphine is too rapid. Fourteen drugs that inhibit the conversion to morphine are listed in the article.
January 2008
More than 70 million prescriptions a year are filled for these popular antidepressants, including Prozac, Paxil, Zoloft, Luvox, Celexa and Lexapro. This article gives details about more than 60 other widely prescribed prescription drugs that can have harmful interactions if used with these antidepressants. The two different kinds of interactions are also discussed.
March 2007
Although the FDA medical officer in charge of reviewing ranolazine recommended that ranolazine's professional product labeling display a black box warning about potential disruption in the heart's electrical cycle, the drug does not have a black box warning.
February 2006
Clearly, the concern here is that the use of atypical and typical antipsychotic drugs to control the behavior of elderly nursing home residents who are not psychotic could be considered an unlawful chemical restraint.
June 2003
You should follow the Health Research Group’s Seven Year Rule with aripiprazole. There is no evidence to suggest that aripiprazole is a “breakthrough” drug.
May 2003
Stronger warnings have been added to the professional product label, or “package insert,” for the fluoroquinolone antibiotic gatifloxacin (TEQUIN) about possible heart rhythm disturbances and problems with blood sugar control. This drug was approved by the Food and Drug Administration (FDA) in October 2001 and its marketing brought to nine the number of fluoroquinolone antibiotics on the market.
July 2002
The approval of gatifloxacin(TEQUIN) in October 2001 brought to nine the number of fluoroquinolone antibiotics on the market, and this drug joins sparfloxacin (ZAGAM) and moxifloxacin (AVELOX) as fluoroquinolones that can cause a dangerous abnormality in the heart’s electrical conduction known as QT prolongation that can lead to fatal heart rhythm disturbances such as torsade de pointes.
June 2002
A study published in the May 1, 2002 Journal of the American Medical Association (JAMA) has resulted in a major change in the Health Research Group's drug safety policy. The study, in association with physicians from the Harvard Medical School, examined the frequency and timing of the identification of new adverse drug reactions resulting in the addition of a black box warning in the drug's professional product labeling or its outright removal from the market.
Three of the authors have close identification with the Health Research Group: its director, Sidney M. Wolfe, and former HRG staffers Drs. Steffi Woolhandler and David Himmelstein. The other co-authors are affiliated with the Harvard Medical School.
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