Adverse Reactions in Pooled Placebo-Controlled Trials in Postherpetic Neuralgia

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

Postherpetic Neuralgia

The most common adverse reactions associated with the use of NEURONTIN in adults, not seen at an equivalent frequency among placebo-treated patients, were dizziness, somnolence, and peripheral edema.

In the 2 controlled trials in postherpetic neuralgia, 16% of the 336 patients who received NEURONTIN and 9% of the 227 patients who received placebo discontinued treatment because of an adverse reaction. The adverse reactions that most frequently led to withdrawal in NEURONTIN-treated patients were dizziness, somnolence, and nausea.

Following table lists adverse reactions that occurred in at least 1% of NEURONTIN-treated patients with postherpetic neuralgia participating in placebo-controlled trials and that were numerically more frequent in the NEURONTIN group than in the placebo group.

TABLE 3. Adverse Reactions in Pooled Placebo-Controlled Trials in Postherpetic Neuralgia
NEURONTIN
N=336
%
Placebo
N=227
%
Reported as blurred vision
Body as a Whole
  Asthenia 6 5
  Infection 5 4
  Accidental injury 3 1
Digestive System
  Diarrhea 6 3
  Dry mouth 5 1
  Constipation 4 2
  Nausea 4 3
  Vomiting 3 2
Metabolic and Nutritional Disorders
  Peripheral edema 8 2
  Weight gain 2 0
  Hyperglycemia 1 0
Nervous System
  Dizziness 28 8
  Somnolence 21 5
  Ataxia 3 0
  Abnormal thinking 3 0
  Abnormal gait 2 0
  Incoordination 2 0
Respiratory System
  Pharyngitis 1 0
Special Senses
  Amblyopia 3 1
  Conjunctivitis 1 0
  Diplopia 1 0
  Otitis media 1 0

Other reactions in more than 1% of patients but equally or more frequent in the placebo group included pain, tremor, neuralgia, back pain, dyspepsia, dyspnea, and flu syndrome.

There were no clinically important differences between men and women in the types and incidence of adverse reactions. Because there were few patients whose race was reported as other than white, there are insufficient data to support a statement regarding the distribution of adverse reactions by race.

 

What Diseases Gabapentin can treat ?

Gabapentin was developed to treat epilepsy, but it is now used to treat various forms of chronic pain. It works by reducing the number of signals sent through the nerves. If the signals are reduced then the pain will be reduced. Research has shown that Gabapentin can help in treating various types of nerve pain.

Some Research Team performed searches to look for clinical trials where gabapentin was used to treat neuropathic pain or fibromyalgia. They found that 5633 participants had been involved in 37 studies of reasonable quality.  They tested gabapentin against placebo for four weeks or more.  Studies lasting only one or two weeks are unhelpful when pain can last for years.

Neuropathic pain is pain coming from damaged nerves. It differs from pain messages carried along healthy nerves from damaged tissue (a fall, cut, or arthritic knee). Neuropathic pain is treated by different medicines than pain from damagedtissue.

Medicines like paracetamol or ibuprofen are not effective in neuropathic pain, while medicines that are sometimes used to treat depression or epilepsy can be very effective in some people with neuropathic pain.  Our understanding of fibromyalgia (a condition of persistent, widespread pain and tenderness, sleep problems, and fatigue) is poor, but fibromyalgia can respond to the same medicines as neuropathic pain.

Gabapentin and Fioricet are not recommended for a long term use. If you want to reduce your pain for a long time purpose, we suggest you to take some anti-aging products and natural Pain relief products.

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