Drug Safety Alerts

Ortho Evra Recall Requested By Public Citizen Due To Blood Clot Risks

Women Have Developed Serious Side Effects Like Deep Vein Thrombosis (DVT) and Pulmonary Embolism (PE) After Using This Birth Control Patch

(Posted by Tom Lamb at DrugInjuryWatch.com)

On May 8, 2008 Public Citizen's Health Research Group (HRG) sent its "Petition to the FDA to Ban Ortho-Evra" to Commissioner Andrew von Eschenbach.  In this 11-page letter, Sidney Wolfe, M.D., the Director of HRG, discusses the increased risk of blood clots and serious side effects associated with Johnson & Johnson's Ortho Evra birth control patch, sometimes referred to simply as "the Patch".  In summary, Dr. Wolfe points out:

Compared to standard 35 microgram estrogen/progestin oral contraceptives, Ortho-Evra results in:

  • 60% more estrogen on average exposure;
  • greater variability in estrogen levels;
  • a possible two-fold increased risk of venous thrombosis (typically, painful blood clots of the leg which can travel to the lungs and cause death)....

This May 2008 Petition concludes with a request for a "gradual recall" of the Patch:

Public Citizen therefore requests a six-month transition period in which  Ortho-Evra will be available for refill prescriptions to allow women time to meet with their healthcare provider and seek an alternative contraceptive method.

A May 8, 2008 Reuters article, "US Group wants FDA to pull J&J birth control patch", summarily presents the long-standing FDA and drug company positions as regards this allegation by Public Citizen that Ortho Evra is unsafe and, therefore, the Patch should be removed from the market:

The FDA has said the chance of developing a clot is low. For every 10,000 women who use hormonal contraceptives for one year, some three to five of them will develop a clot, the agency has said.

Ortho Women's Health & Urology, the J&J division that makes the contraceptive patch, has said its patch has risks and benefits like all hormonal contraceptives.

We will look for what the FDA and J&J have to say, if anything, about this May 2008 Ortho Evra Petition from Public Citizen in the days to come.

Extent Of Digitek Recall Remains A Mystery Ten Days Later; Patients Are Left In The Dark

Heart Medication Sold By Mylan Was Made In Actavis Plant That Received FDA Letter About Manufacturing Problems Over A Year Ago

(Posted by Tom Lamb at DrugInjuryWatch.com)

News about the April 2008 Digitek recall came first in the form of a brief company press release dated April 25, which was followed by an FDA MedWatch Safety Alert posted April 28 on the agency's web site.

As of May 5, ten days later, there had been little additional information from Actavis Totowa, the drug manufacturer, and none from the FDA, about the possible extent of the Digitek recall. 

Meanwhile, patients are being contacted by their pharmacists who, admittedly, know nothing more about the situation than what was set forth in the April 25 half-page press release about this "Class 1 nationwide recall of Digitek (digoxin pills, USP, all strengths)".

Understandably, patients are asking how far back in time they have been getting and taking Digitek pills that may have contained double the intended dose of active ingredient.

The latest news about the extent of the Digitek recall comes from a May 6, 2008 article, "Double-strength digoxin recalled in US", by Phil Taylor, which is posted online at In-PharmaTechnologist.com ("Breaking News on Pharmaceutical Technology"), of London, UK.

Because we do not want to misconstrue in any manner the intriguing information developed by Mr. Taylor in his May 6 article, we provide this extended excerpt:

A spokesperson for the company told in-PharmaTechnologist.com that the investigation into the problem was still ongoing, but at the moment there was no further information on what caused it and how many tablets were involved.

This is not the first time that there have been manufacturing problems at the Actavis Totowa facility in New Jersey, which was acquired as part of the takeover of Amide Pharmaceuticals by Actavis in May 2005, although the spokesperson said these earlier issues were entirely unrelated to the current incident.

Just over a year ago Actavis Totowa was sent a warning letter by the FDA after an agency inspection revealed that drugs products manufactured in the facility were 'adulterated'.

The quality control unit at the site came under criticism from the agency, which said it failed to reliably establish the identity, strength, quality and purity of drug products manufactured and released onto the market. The FDA inspectors also noticed a general lack of investigation of out-of-specification test results, as well as a lack of sufficient documentation of the results.

It is understood, however, that all these 'Form 483' issues have since been resolved to the agency's satisfaction.

Hopefully Actavis and/or the FDA will be making an official announcement, soon, about how far back in time the Digitek pills sold under the "Bertek" and "UDL" labels may have been double-strength tablets.  Until then, many patients and their families are left wondering if possibly related symptoms were caused by the use of these double-strength Digitek tablets.

FDA Says It Doesn't Know How Long Defective Digitek / Digoxin Pills Were Sold

Activas Says They Have Received 11 Complaints About Digitek Side Effects That Date Back To 2006

(Posted by Tom Lamb at DrugInjuryWatch.com)

The facts surrounding a late April 2008 recall of Digitek (digoxin) pills that may have twice the usual active ingredient are becoming less clear as we learn more in the days following the FDA's April 28 announcement.

In a May 1, 2008 Newsday.com article, "Pharmacists will call you: Digitek recalled", by reporter Kathleen Kerr, we learn that the defective Digitek tablets may have been sold for more than a year:

"We had some concerns about the process," [Actavis Totowa spokesman John] LaRocca said. He said the company knew of no deaths linked to Digitek use but Actavis and the FDA had received 11 complaints about side effects since 2006.

As reported previously, this improperly manufactured generic digoxin medication could lead to digitalis toxicity; patients with renal insufficiency are especially at risk.

According to Californian staff writer Emily Hagedorn, in her May 1, 2008 article "Recall of heart drug worries Bakersfield family", the FDA is still trying to get a handle on the magnitude and ramifications of this Digitek recall:

Considering it was voluntarily recalled Friday afternoon, it’s too soon to tell how many people have suffered adverse reactions, said Sandy Walsh, spokeswoman for the Food and Drug Administration. She didn’t know how long the defective pills were sold....  The FDA has inspected the manufacturer’s facility since the error was discovered, she said....  While Actavis has 50 percent of the digoxin market, the FDA does not foresee a shortage from other manufacturers, Walsh said.

Going back to the Newsday.com May 1 article, we get some pharmacy perspective on the Digitek recall:

Joel Bassuk, pharmacist at Raindew Pharmacy in Manhasset, said he received the recall notice yesterday....  "They said to immediately examine your inventory and discontinue all lots," Bassuk said....  CVS spokesman Mike DeAngelis said the chain had removed all Digitek from its stores. "We went back to see which patients had prescriptions over the past 12 months and contacted them," DeAngelis said.

As always, we welcome information about emerging drug safety issues:  druginjury@gmail.com.  This situation, in particular, calls for such assistance from anyone who may know more about the extent of this apparent manufacturing problem whereby some digoxin pills may be too potent.  At this juncture, at least, it seems we are not getting much in terms of "specifics" from Actavis, the drug manufacturer, nor the FDA about this Digitek recall.

Digitek Digoxin Recall: Tablets May Be Double The Normal Dose

So-called "Digitalis Toxicity" Is Possible, Especially In Patients With Renal Failure

(Posted by Tom Lamb at DrugInjuryWatch.com)

In an April 28, 2008 MedWatch Safety Alert about Digitek (digoxin tablets), the FDA informed doctors and patients that this prescription medication is the subject of a nationwide Class I recall because of the possibility that some tablets were manufactured such that they contain twice the approved level of active ingredient.

In more detail, according to this Digitek MedWatch Safety Alert:

  • The products are distributed by Mylan Pharmaceuticals Inc., under a “Bertek” label and by UDL Laboratories, Inc. under a “UDL” label.
  • The existence of double strength tablets poses a risk of digitalis toxicity in patents with renal failure.
  • Digitalis toxicity can cause nausea, vomiting, dizziness, low blood pressure, cardiac instability and bradycardia.

This April 28 MedWatch Safety Alert came several days after a press release about this Digitek manufacturing problem was issued by Actavis Totowa LLC (formerly known as Amide Pharmaceutical Inc).  Therein, the manufacturer said it is recalling all strengths of Digitek because it may have accidentally released pills that are double the normal thickness, carrying twice the normal dose.

Digoxin is used in the treatment of arrhythmias and heart failure.

Patients taking Digitek tablets should contact their doctor if they have any concerns or questions.

P.S.  According to a brief newspaper article dated April 25, 2008, "Digitek heart drug recall":

[Actavis Totowa LLC spokesman] John LaRocca said 11 people have reported getting sick after taking the drug, but the Morristown, N.J., company is not aware of any deaths.

We will keep you informed about the number of patients injured by Digitek (digoxin) tablets that were defective, i.e., manufactured with a double-dose, as well as anything that we learn about the dates when these recalled Digitek tablets were being dispensed at pharmacies across the country. 

My law firm has been contacted already by several people who have had family members hospitalized with serious side effects apparently caused by the defective Digitek tablets.  We are in the process of investigating possible Digitek cases where the patient was hospitalized or that involve a death that may be related to the person's use of Digitek tablets.  (5/1/08)

April 2008 FDA "Patient Safety News" Videos For Doctors Online

Covers Chantix And Ortho Evra, As Well As Botox And Myobloc

(Posted by Tom Lamb at DrugInjuryWatch.com)

The FDA's Patient Safety News (PSN) is a series of monthly video news shows intended primarily for doctors and other health care professionals.  Generally, this series covers significant approvals, recalls, and safety alerts for prescription drugs and medical devices.  Some of the FDA PSN videos contain footage and demonstrations relevant to protecting patients from serious side effects and other unwanted consequences.

Subjects covered in the April 2008 edition of the FDA Patient Safety News include the following:

One can find more information about this April 2008 PSN edition and the series in general on the Patient Safety News section of the FDA's web site.

March 2008: Higher Doses Of Celebrex Are Associated With Heart Attack And Stroke Risks

Lower, More Popular Dose Presumed To Be Safe, But Definitive Study Results Will Not Be Available For Few More Years

(Posted by Tom Lamb at DrugInjuryWatch.com)

On March 31, 2008, at the American College of Cardiology's annual meeting, a recent analysis of several studies involving Pfizer Inc.'s arthritis drug Celebrex was presented.  In short, it showed that only higher doses of Celebrex are associated with an increased risk of heart attacks and strokes.

That same day the medical journal Circulation published (online before print) an article by Scott D. Solomon, director of noninvasive cardiology at Brigham and Women's Hospital in Boston, and colleagues about this latest data analysis concerning the safety of Celebrex, "Cardiovascular Risk of Celecoxib in 6 Randomized Placebo-Controlled Trials. The Cross Trial Safety Analysis".

From the abstract for this medical journal article about the side effects associated with high dose Celebrex (celecoxib):

Conclusions—We observed evidence of differential cardiovascular risk as a function of celecoxib dose regimen and baseline cardiovascular risk. By further clarifying the extent of celecoxib-related cardiovascular risk, these findings may help guide treatment decisions for patients who derive clinical benefit from selective cyclooxygenase-2 inhibition.

The significance of this Circulation article as well as the American College of Cardiology (ACC) presentation in Chicago is explained by Wall Street Journal reporter Jennifer Corbett Dooren in her March 31, 2008 article, "Higher Doses of Pfizer's Celebrex Are Linked to Heart, Stroke Risks":

The analysis, supported by the National Cancer Institute, broadly shows patients receiving the highest dose of Celebrex of 400 milligrams twice daily had a nearly three times higher risk of heart attacks and strokes than patients not taking the drug. Patients taking a lower dose of Celebrex, 400 milligrams once daily, had a 10% higher risk of a cardiovascular event....

[This is] an analysis of six studies that lasted for at least three years comparing patients taking Celebrex to those taking placebo. The combined analysis involved 7,950 patients.

The analysis showed Celebrex was associated with an increased risk for a combined study endpoint of cardiovascular death, myocardial infarction (heart attack), stroke, heart failure or thromboembolic event, or events related to blood clots, compared to patients not taking the drug. The risk was not affected by aspirin use.

For some contextual information we turn to a Bloomberg article, "Pfizer's Celebrex at High Doses May Raise Heart Attack Risk", by Shannon Pettypiece:

Most arthritis patients take a total of 200 milligrams or less of Celebrex a day. The study didn't examine risk for those lower doses, Solomon said.

Celebrex belongs to a category of drugs called Cox-2 inhibitors, which includes Merck's Vioxx and Pfizer's Bextra. Merck withdrew Vioxx in September 2004 after a company-sponsored study found the rate of heart attacks and strokes among people who took Vioxx for at least 18 months was 15 per 1,000 patients, about double the rate for those given a placebo.

Pfizer later removed Bextra and said Celebrex should remain on the market because there was no data showing a risk at the most commonly prescribed doses.

The study presented today examined the highest doses. The study that supported the removal of Vioxx looked at the most commonly prescribed dose, Solomon said. There is no data available showing whether Celebrex carries a heart risk at the lower doses....

A more definitive assessment on the risks of Celebrex won't come until 2010 or 2011, when a $100 million study of 20,000 patients comparing Celebrex with the pain pills ibuprofen and naproxen is expected to be completed.

In light of what we heard reported at the March 2008 ACC meeting in Chicago about how some negative study results about Vytorin and Zetia were seemingly delayed, or withheld, by Merck and Schering-Plough, it makes me a bit uneasy that we must wait for several more years before learning whether or not the lower, more popular dose of Celebrex is safe for use.

More Information About Reports Of Byetta Use Being Linked To Acute Pancreatitis

March 2008 Article In FDA's Drug Safety Newsletter Discusses Two Cases In Detail

(Posted by Tom Lamb at DrugInjuryWatch.com)

The quarterly issue of the FDA's online Drug Safety Newsletter [DSN] which was published on March 18, 2008 includes an article about a postmarket safety review of Byetta (Exenatide) that associates this diabetes drug with acute pancreatitis.

As background, one may recall that in October 2007 the FDA issued an alert to doctors informing them that the agency had reviewed 30 postmarketing reports of acute pancreatitis in patients taking Byetta, which was approved by the FDA on April 28, 2005 to treat adults with type 2 diabetes.

As seen here, this March 2008 DSN article about Byetta builds upon those 30 reports of acute pancreatitis:

FDA has been monitoring cases of acute pancreatitis in its postmarketing review of adverse event reports associated with the use of [Byetta] exenatide. Spontaneous adverse event reports of acute pancreatitis were described in the Adverse Reactions section of product labeling. Further postmarketing review of [Byetta] exenatide identified additional cases of acute pancreatitis associated with use of the drug. The product labeling has been updated to include information about acute pancreatitis in the Precautions section of the label, and information for healthcare professionals has been posted on FDA's Web site. [Text of footnote 1:  Exenatide (Byetta) product labeling.]  This article, based on the review of 30 reports of acute pancreatitis, describes the postmarketing data that prompted the revision to product labeling and provides recommendations to healthcare professionals regarding this serious adverse event.

As an aside, one part of this FDA article about the suspected Byetta - pancreatitis link caused a double-take:

Exenatide was originally identified in the saliva of the poisonous Gila monster lizard. Pancreatitis has been reported with envenomation with Gila monster saliva due to overstimulation of the pancreas. [Text of footnote 2: Sherman M. Therapeutic Venoms. US Pharm. 2005;12:33-36.]

Here are some of the details about these 30 postmarket reports of serious side effects in patients taking Byetta:

  • From April 28, 2005, to December 31, 2006, FDA received 30 domestic reports of acute pancreatitis in patients who received [Byetta] treatment.
  • In 21 of the 30 cases (70%), the patients were hospitalized.
  • There were no fatalities and no cases describing a hemorrhagic or necrotizing pancreatitis event.
  • Nineteen (63%) patients were female.
  • The median age of patients described in the case reports was 60 years (range: 43-72 years).
  • The median time to onset of symptoms of acute pancreatitis from the start of [Byetta] therapy was 34 days (range: 4-300 days).
  • Twenty-seven cases (90%) reported one or more possible contributory factors, including concomitant use of medications that list pancreatitis among reported adverse events in product labeling, or confounding conditions such as obesity, gallstones, severe hypertriglyceridemia, and alcohol use.
  • A dose-response relationship was observed in six patients who reported the onset or worsening of symptoms associated with acute pancreatitis soon after the dose of [Byetta] was increased from 5 mcg twice daily to 10 mcg twice daily.
  • Twenty-two patients improved after [Byetta] therapy was discontinued, and 15 reports described the event as resolved at the time of the report.
  • These findings suggested a strong temporal association between [Byetta] and acute pancreatitis.

In this March 2008 Drug Safety Newsletter article about Byetta one finds two reported cases discussed in some detail.  Both of these selected case reports in this part of the article serve to show the temporal relationship between initiation of Byetta treatment or dose escalation and the onset of symptoms associated with acute pancreatitis.  (Note: The first case has been presented previously in a medical journal article -- Denker PS, Dimarco PE. Exenatide (exendin-4)-induced pancreatitis: a case report. Diabetes Care. 2006;29(2):471.)

We will continue to watch the medical journals for reports of acute pancreatitis in association with the use of Byetta.

FDA Proposed Rule About Drug Label Warning Changes Will Lessen Agency's Power To Protect Us

This January 2008 Rule Issued By FDA Is An Attempt To "End-Run" Congress And Lays The Groundwork For Another Unsafe Drug Debacle Like Vioxx

(Posted by Tom Lamb at DrugInjuryWatch.com)

On January 16, 2008 the FDA issued a proposed rule whereby a drug company would only have to revise the package insert, or label, for its prescription drugs to add an increased warning about a serious side effect where the drug company, itself, is satisfied there was “sufficient evidence of a causal association” between its medication -- i.e., product that it sells for profit -- and the side effect.  This is a process which could literally take years (bringing to the mind the recent Vytorin and Zetia "delay" in the release of the ENHANCE clinical study results, albeit that foot-dragging was apparently more about drug efficacy than drug safety).

This new rule proposed by the FDA in January 2008 is wrong for various reasons that we will explore below and, moreover, is such a threat to patient safety that people should contact their members of Congress to express disapproval of this conduct by our FDA.

Let us explore the number of ways in which this FDA proposed rule is not only wrong in theory but actually detrimental to drug safety, also.

To start, the rule proposed by the FDA directly contradicts Congress’ expressed intent when it passed the Food and Drug Administration Amendments Act of 2007 (FDAAA) just four months ago.  Our Congress included language in FDAAA that confirmed it is the responsibility of a drug company to promptly update a drug label if the company became aware of any new drug safety information, as shown by remarks made by Senators Durbin, Enzi, Kennedy, and Leahy, as well as others, when it passed the FDAAA -- which encompasses the Prescription Drug and User Fee Act (PDUFA).

In more detail, Congress was clear that it intended to keep the burden squarely on drug companies to update their warning labels. Congress explicitly stated that with the passage of this FDAAA law it did not intend to ease the requirements on drug companies to inform doctors and patients about potential drug hazards as soon as possible.  Rather, as evidenced by the remarks of those several Senators mentioned above, Congress reiterated the need for drug companies to change their labels promptly when they learned of any reasonable information that there was an increased risk of a serious side effect associated with their prescription medications.

Despite this clear Congressional intent, the FDA promulgated this new proposed rule just four months after the FDAAA became law.  One might wonder why?  Here's a possibility.  Lobbyists for the drug companies fought hard to have Congress include in the FDAAA legislation some language to loosen warning label obligations, but failed, i.e., Congress specifically left that language out of the final bill.  Following passage of an FDAAA law which is not to their liking, it seems that the drug companies directed their lobbyists to persuade some FDA bureaucrats about this "end-run" on the Congress.

A more important reason that this new rule proposed by the FDA is wrong: It lessens the agency's ability to protect patients from unsafe drugs.  Specifically, the FDAAA requires a drug company to update its package insert, or label, to include a warning about an increased risk of a serious drug side effect as soon as there is some reasonable evidence of that risk.  By this means, the FDAAA law allows doctors and patients to become aware of a prescription drug’s potential risks at the earliest possible time.  In turn, this awareness could help prevent the countless injuries and deaths caused by a drug like Vioxx.  Recall, Merck fought with FDA and thereby delayed changing the Vioxx label such that it served to sufficiently warn about the risks of heart attacks and strokes -- so that, seemingly, the drug company Merck could continue to sell its so-called "blockbuster" drug Vioxx (this delay, of course, did involve drug safety).

Under the new rule proposed by the FDA in January 2008, a drug company will only need to revise their warning label after the company established “sufficient evidence of a causal association”, a process which could take several years (for all kinds of reasons, as one can imagine).  To be clear, under the new FDA rule it is the drug company, itself, that has to establish this significantly higher standard before the company is required to inform doctors and patients about a new potential hazard associated with its drug -- leaving doctors and patients in the dark all the while (as the company looks for something it might prefer not to find in the first place, it seems).

In summary, here are the three main things that are wrong with this new proposed rule issued by the FDA:

  1. With this rule FDA has ignored the expressed Congressional intent for FDAAA.  Members of Congress clearly said that FDAAA was not intended to loosen the requirements on drug companies to inform doctors and patients of new serious side effects.  This new FDA rule, however, will give drug companies broad discretion to determine whether to revise the drug label to so warn;
  2. This new rule issued by FDA is a step backwards for the agency's purpose of making prescription drug use safer for Americans.  The new FDA rule lessens the agency's power to require that drug companies warn doctors and patients of potential drug safety problems at the earliest possible time.  Instead, this proposed rule will give drug companies the ability to choose not to inform doctors and patients even if there is new evidence of a potential serious side effect; and,
  3. The FDA proposed rule makes it more difficult for people injured by an unsafe drug to hold a negligent drug company accountable in court.  By seeking shelter under the FDA’s new rule, a drug company will be immunized from accountability -- in terms of legal liability, which currently is available by operation of the FDAAA law -- with the dual contentions that it did not have the "sufficient evidence" such that the company was not required to update its label and warn about a known serious side effect.  In turn, if the injured person does not have recourse for legal compensation from the drug company, costs of care and treatment for that drug injury could become a substantial burden to taxpayers like you and me.

In closing, please urge your respective members of Congress to oppose this proposed rule issued by the FDA in January 2008.  Unelected bureaucrats in the FDA should not be allowed to make this end-run on Congress so as to undermine the FDAAA law which our representatives in Washington voted in favor of as being the best way to protect the health and safety of Americans regarding the use of prescription drugs.

Dr. Dennis Mangano Says On 60 Minutes In February 2008 That Trasylol Should Have Been Recalled As Early As January 2006

Delay By Bayer And FDA Until November 2007, When Trasylol Sales Were "Suspended", Caused 22,000 Excess Deaths Per CBS Report

(Posted by Tom Lamb at DrugInjuryWatch.com)

According to interviews broadcast by CBS Television's 60 Minutes program about Trasylol on February 17, 2008, an estimated 22,000 patient lives could have been saved if the FDA had acted quicker to recall Trasylol, Bayer AG's drug used to stem bleeding during open heart surgery.

Trasylol (aprotinin injection) sales in the U.S. and Canada were suspended by Bayer in early November 2007. Trasylol was used to reduce blood loss during coronary artery bypass surgery.

As background, in mid-February 2006 the FDA announced it was evaluating the safety of Trasylol after new studies had linked this heart surgery drug to higher risks of kidney problems, heart attacks, and strokes.  At the end of February 2006 a "Dear Doctor" letter from Bayer regarding Trasylol was posted on Health Canada's MedEffect web site.

Later, the FDA held an advisory committee meeting in September 2006 and, thereafter, convened another such meeting on September 12, 2007 to further discuss Trasylol. 

A February 15, 2008 Reuters article, "22,000 died amid delayed Bayer drug recall: doctor", provided these details based on a review of this 60 Minutes report about Trasylol that had been posted on the CBS News web site in advance of the February 17 broadcast:

Dr. Dennis Mangano, the study's researcher, said during the program that 22,000 lives could have been saved if Trasylol had been taken off the market when he first published his study in January 2006....

He said in the broadcast that Bayer failed to disclose to the FDA during an FDA advisory panel meeting in September 2006 -- at which Mangano's negative findings were discussed -- that the German drugmaker had conducted its own research which confirmed the same dangers established by his study.

The chairman of the FDA advisory panel, Dr. William Hiatt, told 60 Minutes he would have voted to remove Trasylol from the market had he been informed about Bayer's study, according to the CBS report.

As acknowledged by company spokeswoman Meredith Fischer in the February 15 Reuters article, product liability lawsuits have been filed against Bayer on behalf of patients who had died or been seriously injured following the use of Trasylol during their heart surgery.

P.S.  In advance of the September 2006 advisory committee meeting about Trasylol, FDA reviewers asked Dr. Mangano for his group’s data in order to see if Trasylol should be withdrawn based on the new evidence.  Read what happened thereafter in Merrill Goozner's November 27, 2006 article, "CABG from NEJM on Thanksgiving", which he posted at Gooznews.com  (2/19/08)

February 2008 "Dear Doctor" Letter About Avelox / Avalox Is Sent By Bayer In Europe

Action Reportedly Intended To Emphasize 2007 Label Change About Severe, Possibly Fatal Liver And Skin Side Effects

(Posted by Tom Lamb at DrugInjuryWatch.com)

A February 14, 2008 Reuters article, "Bayer warns doctors on rare Avelox side effects", reports that this German drug company is sending warning letters to doctors in Europe about the antibiotic Avelox, one of its top-selling drugs. This February 2008 letter -- which would be generally referred to as a "Dear Doctor" letter -- is reportedly intended to emphasize severe liver reactions and serious skin rashes that can be caused by Avelox use.

From the February 14 Reuters article about this Avelox letter from Bayer:

Bayer has included the additional warnings in the packaging of Avelox products since autumn last year after some incidents of severe side effects were monitored, but is now reinforcing this by writing to doctors.

"The side effects are very rare. But when it happens, it is quite severe to patients. We want doctors to be more aware," said Yvonne Moeller, a spokeswoman at Bayer.

Avelox, or Avalox in Europe, is used by patients as treatment for respiratory and other infections.

Some additional details about this development were provided by a Thomson Financial News article, "Avelox: Bayer warns of liver damage risk linked to Avelox antibiotic, changes label", also from February 14:

Bayer AG (NYSE:BAY) has warned doctors that its Avelox antibiotic may lead to potentially fatal liver damage and skin disease in rare cases, following a routine analysis of recent data on side effects.

The link between Avelox and the side effects has been known but the analysis has yielded very rare new cases, prompting the German drug maker to adjust the labelling of Avelox and informing doctors, a Bayer spokeswoman said, confirming a report in Dutch newspaper Algemeen Dagblad.

We will watch for any similar Avelox "Dear Doctor" letter from Bayer here in the U.S.

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