Lyrica - You need to read this
****I take this for restless legs not I scared to take it at all. A lot of us take this on Ixempra and a few of us are complaining of blurred vision. I'm one of them. Please is the part about turmors growing also this drug can make you form B9 tumors. Thank you I have enough tumors.
Important Safety Information
LYRICA is indicated for the management of Fibromyalgia, neuropathic pain associated with Diabetic Peripheral Neuropathy, Postherpetic Neuralgia, and as adjunctive therapy for adults with Partial Onset Seizures.
LYRICA is contraindicated in patients with known hypersensitivity to pregabalin or any of its components.
The most common adverse reactions occurring during Fibromyalgia and/or other controlled clinical trials for patients taking LYRICA vs those taking a placebo were dizziness, somnolence, dry mouth, edema, blurred vision, weight gain, constipation, euphoric mood, balance disorder, increased appetite, and thinking abnormal (primarily difficulty with concentration/attention).
There have been postmarketing reports of angioedema in patients during initial and chronic treatment with LYRICA. Specific symptoms included swelling of the face, mouth (tongue, lips, and gums), and neck (throat and larynx). There were reports of life-threatening angioedema with respiratory compromise requiring emergency treatment. LYRICA should be discontinued immediately in patients with these symptoms.
There have been postmarketing reports of hypersensitivity in patients shortly after initiation of treatment with LYRICA. Adverse reactions included skin redness, blisters, hives, rash, dyspnea, and wheezing. LYRICA should be discontinued immediately in patients with these symptoms.
Patients taking LYRICA should be counseled that dizziness and somnolence may impair their ability to perform potentially hazardous tasks such as driving or operating complex machinery until they have sufficient experience with LYRICA to determine its effect on cognitive and motor function.
*******In controlled studies, a higher proportion of patients treated with LYRICA reported blurred vision (7%) than did patients treated with placebo (2%), which resolved in a majority of cases with continued dosing. More frequent assessment should be considered for patients who are already routinely monitored for ocular conditions.
Higher frequency of weight gain and edema was observed in patients taking both LYRICA and thiazolidinedione antidiabetic drugs. Caution should be exercised when coadministering these drugs.
Patients who are taking other drugs associated with angioedema such as angiotensin-converting enzyme inhibitors (ACE inhibitors) may be at increased risk of developing angioedema. LYRICA should be used with caution in patients who have had a previous episode of angioedema.
LYRICA may exacerbate the effects of oxycodone, lorazepam, or ethanol on cognitive and gross motor functioning.
In controlled clinical studies of LYRICA in Fibromyalgia, 106 patients were 65 years of age or older. Although the adverse reaction profile was similar between the 2 age groups, the following neurological adverse reactions were more frequent in patients 65 years of age or older: dizziness, vision blurred, balance disorder, tremor, confusional state, coordination abnormal, and lethargy.
*****In standard, preclinical in vivo lifetime carcinogenicity studies of LYRICA, an unexpectedly high incidence of hemangiosarcoma was identified in 2 different strains of mice. The clinical significance of this finding is unknown. Clinical experience during LYRICA's premarketing development provides no direct means to assess its potential for inducing tumors in humans.
I****nclinical studies across various patient populations comprising 6396 patient-years of exposure in patients >12 years of age, new or worsening preexisting tumors were reported in 57 patients. Without knowledge of the background incidence and recurrence in similar populations not treated with LYRICA, it is impossible to know whether the incidence seen in these cohorts is or is not affected by treatment.
A dose-dependent increase in the incidence of hemangiosarcomas was observed in 2 strains of mice given LYRICA for 2 years. Plasma LYRICA exposure (AUC) in mice receiving the lowest dose that increased hemangiosarcomas was approximately equal to the human exposure of 600 mg/day. A no-effect dose for induction of hemangiosarcomas in mice was not established. No evidence of carcinogenicity was seen in 2 studies in Wistar rats following dietary administration of LYRICA for 2 years at doses that were associated with plasma exposures up to 24 times human exposure.
Patients with a creatinine clearance of 30 to 60 mL/min had a greater incidence of discontinuation due to adverse reactions than patients with normal creatinine clearance.
LYRICA should be discontinued gradually over a minimum of 1 week.
As with all antiepileptic drugs (AEDs), if LYRICA is discontinued it should be withdrawn gradually over a minimum of 1 week to lessen the potential of increased seizure frequency in patients with seizure disorders.
Patients with a history of drug or alcohol abuse may have a higher chance of misuse or abuse of LYRICA.
Comments
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Even as new reports surface about fake medical articles Pfizer planted to sell seizure drug Neurontin for unapproved uses from 1995 to 2002, it looks like deja vu all over again.
Pfizer gave nonprofits $2.1 million in grants in 2008 for medical courses about the pain-and-fatigue ailment fibromyalgia for which its Neurontin follow-up pill, Lyrica, just happens to be approved.
Lyrica (pregablin), facetiously called Son of Neurontin at Pfizer, was discovered by Northwestern University chemist Richard Silverman in 1989, earning the university a cool $700 million when it sold royalties in late 2007.
It is funding the $100 million Richard and Barbara Silverman Hall for Molecular Therapeutics & Diagnostics, under construction now, which will employ 245 faculty, staff and research assistants and hopefully lead to other promising molecules.
Like Neurontin (gabapentin), Lyrica (Pregablin) is an antiepilepsy drug (AED) that modulates calcium channels to dampen the excitability of nerve endings and seizure activity. And, like Neurontin which made $3 billion a year from unapproved uses like bipolar disorder, attention deficit disorder and restless legs syndrome, Pfizer has high hopes for its "crossover appeal."
Lyrica was approved in 2006 for partial onset seizures and nerve pain associated with diabetes and shingles. But the FDA's approval of Lyrica as the first drug for fibromyalgia in 2007 is what kicked sales up 37 percent in the third quarter to $465 million.
Fibromyalgia, with no clear cause, blood test, definition or cure "is almost a textbook definition of an unmet medical need," enthused Pfizer VP Ian Read in a conference call to analysts when the drug first launched.
No kidding! Datamonitor predicts the fibro market can be "grown" from $400 million to $2 billion thanks to all the people who don't know they have it yet.
And even before the name Lyrica appeared, Pfizer's initial "unbranded" campaign of public service announcements in conjunction with the National Fibromyalgia Association--are you listening broadcast executives? PSAs?-- that featured people describing their symptoms and hawking the web site www.fibrohope.org moved script big time.
(Think Merck's "unbranded" HPV vaccine Gardasil campaign.)
Despite a temporary Lyrica scare in 2001when Pfizer had to freeze patient trials because mice developed cancerous tumors--luckily the rats didn't--Lyrica was well received by the medical community.
Except they were all on the same team.
"Well tolerated," said Pfizer paid doctors in Arthritis and Rheumatism in 2005.
"Proven efficacy" and "No new adverse events," said Pfizer paid doctors in Drugs of Today in 2005 and 2007.
And, "Durability of effect for relieving FM pain," said Pfizer paid doctors in the journal Pain in 2008.
Actual Lyrica users were less effusive, reporting memory loss, mental confusion, extreme weight gain, hair loss, impaired driving, disorientation, twitching and even two deaths on askapatient.com. And the FDA added suicide warnings to all AEDs in 2008.
Nor is the bad press over for Pfizer. The News Tribune reported Pfizer reps made over 200 visits to Western State Hospital, a mental hospital in Tacoma, Washington, within four years--"That's where our customers are," snapped then company spokesman Bryant Haskins--where 118 prescriptions for Pfizer's controversial drug Geodon were ordered in just one day.
And after paying $430 million in 2004 to settle Neurontin criminal charges, it agreed to pay $2.3 billion just last month for improper marketing of its painkiller, Bextra which was so dangerous it was withdrawn in 2005. Who can say incorrigible?
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Who says technology transfer doesn't pay?
Pregablin, discovered by Northwestern University chemist Richard Silverman in 1989 to become Pfizer's Lyrica, earned the university a cool $700 million when it sold royalties in Dec. 2007.
The nerve pain-cum-seizure pill is funding the $100 million Richard and Barbara Silverman Hall for Molecular Therapeutics & Diagnostics--currently a hole in the ground on the way to the student union--which will employ 245 this fall. Views of Lake Michigan and the duck pond included.
And, thanks to FDA approval in 2007 of Lyrica as the first US drug for the pain condition fibromyalgia, it may earn as much as its molecular relative--Pfizer's Neurontin (gabapentin)--which made $3 billion a year before its patent ran out in 2004.
No wonder they call Lyrica son of Neurontin.
Of course there have been setbacks on the road to marketing Lyrica.
************In 2001, Pfizer had to freeze pain trials and restrict pregablin in patients when test mice developed cancerous tumors. Profit warning! But when rats tests were okay, Toni Hoover, a vice president with Pfizer's now defunct Ann Arbor, MI labs sounded the all clear. "The FDA has found that the benefit of taking the drug outweighs any risk," she told the Detroit News.
Pfizer brass failed to embrace Silverman the way it embraced the $564 million he made for them in Lyrica's first three months. ("They had a launch party for the drug, and I asked to come. Nope. No party for me. They take your stuff and tell you to go away," he told the Chicago Tribune.)
And Lyrica's not approved for the "social phobia" detailed in Pfizer original marketing plans. Yet.
But as long as pharma can get a drug approved in advance of its uses and people will take an antipsychotic for the blues or a seizure med for migraines, Lyrica has a future.
Initial articles about Lyrica which, like Neurontin, is an anti-seizure drug that modulates calcium channels to dampen the excitability of nerve endings, were positive.
"Well tolerated," said Arthritis and Rheumatism in 2005.
"Proven efficacy" and "No new adverse events," said Drugs of Today in 2005 and 2007.
"Durability of effect for relieving FM pain," said the journal Pain in 2008.
Unfortunately the articles were all written by Pfizer paid doctors.
Actual users of Lyrica report memory loss, mental confusion, extreme weight gain, hair loss, impaired driving, disorientation, twitching and a lot of I'd-rather-have-my-fibro-symptoms-back-if-this-is-the-cure on askapatient.com. P.S. There are two deaths.
Of course its no secret that Pfizer's blockbusters Viagra, Zoloft and Lipitor are history and its pipeline is bare. In January, it announced it was losing 800 of its researchers and buying Wyeth (no danger of getting new researchers there.)
Nor can its gravy train of antibiotics in food animals--pun intended--last much longer with residues found in meat, water and even crops and world recognition of antibiotic resistance.
Just as people were forgetting that Pfizer paid $430 million in 2004 for criminally promoting Neurontin for bipolar disorder, attention-deficit disorder, restless legs syndrome and other unapproved disorders, an article in the January 9 New England Journal of Medicine titled "The Neurontin Legacy--Marketing through Misinformation and Manipulation," shows it's déjà vu all over again at Pfizer.
Nor is Lyrica the only game in town anymore for fibromyalgia since the FDA approved Lilly's antidepressant Cymbalta in 2008 and Forest Laboratories' antidepressant Savella in January. Now Americans can choose between an antidepressant with a black box warning for suicide and a seizure medication for a disease they didn't know they had--or was an epidemic--ten years ago.
****Lyrica itself was slated for an FDA black box suicide warning in 2008. A 92-page appeal from Pfizer last summer called the suicide stats "an exaggeration of risk that is introduced by ascertainment bias" and cautioned against "overwarning...patients and prescribers" so that they "underestimate the risks of declining treatment." Especially risks for Pfizer.
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I took neurontin for two years and it did little to help my neuropathy
after I failed at amitrypilin
I switched to Lyrica and I have a whole new life, thanks to the medicine
I got back walking, playing tennis and many other heathful activities so
I am more than grateful for it...
SoCal
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i will keep my eye on it.
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I think I was one of those who was "hypersensitive" to the main ingredient in nuerontin, that has a very similar chemical structure to lyrica. Even at a very low dose, I absolutely had the "balance disorder." I remember feeling like the floor was almost coming out from under me. - Felt like I was going to fall and worried when I was out, people might think I was drunk or high.
I also remember trying to "wean" from it. Luckily the SEs only lasted 24hrs. I remember sitting in a coffee shop feeling "not myself" and having a severe headache with trouble concentrating. Later that day, taking my son to soccer practice, I felt very irrritable, unable to concentrate and felt like I was going to be sick while driving on the freeway. I was thinking "my God what is going on?" - and then I figured, it must be the nuerontin.
For me the drug was a nightmare and I would NEVER take it again. Having said all that, I know there are many ladies that do very well with nuerontin/lyrica. - I was just not one of them.
Julie
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Bump - Good information on Lyrica and Gabapentin here.
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