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Naltrexone is a medication that blocks the effects of drugs known as opioids. It competes with these drugs for opioid receptors in the brain. It was originally used to treat dependence on opioid drugs but has recently been approved by the FDA as treatment for alcoholism. This medicine is not a complete cure for alcoholism, but it can help you stop drinking.

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Naringenin is a flavanone, a type of flavonoid, that is considered to have a bioactive effect on human health as antioxidant, free radical scavenger, anti-inflammatory, carbohydrate metabolism promoter, and immune system modulator. It is the predominant flavanone in grapefruit.

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Nedaplatin is a platinum compound which is used for cancer chemotherapy. It produces less nausea, vomiting and nephrotoxicity than other platinum-containing drugs.

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Nefazodone is an antidepressant. Its sale was discontinued in 2003 in some countries due to the rare incidence of hepatotoxicity, which could lead to the need for a liver transplant, or even death.


Nelfinavir is a potent HIV protease inhibitor. It is used in combination with other antiviral drugs in the treatment of HIV in both adults and children.Nelfinavir inhibits the HIV viral proteinase enzyme which prevents cleavage of the gag-pol polyprotein, resulting in noninfectious, immature viral particles.Side effects include thirst and hunger, unexplained weight loss, increased urination, fatigue, and dry, itchy skin.

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Nesiritide is used to improve breathing in people with congestive heart failure (CHF).

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Nevirapine is a potent, non-nucleoside reverse transcriptase inhibitor used in combination with nucleoside analogues for treatment of HIV infection and AIDS.Nevirapine binds directly to reverse transcriptase (RT) and blocks the RNA-dependent and DNA-dependent DNA polymerase activities by causing a disruption of the enzyme's catalytic site. The activity of nevirapine does not compete with template or nucleoside triphosphates.Symptoms of overdose include edema, erythema nodosum, fatigue, fever, headache, insomnia, nausea, pulmonaryinfiltrates, rash, vertigo, vomiting, and weight decrease.

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Nifenazone is a drug used for joint and muscular pain.


Nimesulide is a relatively COX-2 selective, non-steroidal anti-inflammatory drug (NSAID) with analgesic and antipyretic properties.It is a sulphonanilide analogue.Its approved indications are the treatment of acute pain, the symptomatic treatment of osteoarthritis and primary dysmenorrhoea in adolescents and adults above 12 years old.It acts by inhibiting the release of tumour necrosis factor-alpha, acts as a competitive inhibitor of histamine release and reduces superoxide anion formation. It is absorbed rapidly and completely after oral administration. Nimesulide is proved safe and effective in the treatment of a wide range of inflammatory and painful conditions, including osteoarthritis, extra-articular disorders such as tendinitis and bursitis, post-operative pain, primary dysmenorrhoea.

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Nizofenone is a psychostimulant/nootropic. It has been shown to have neuroprotective effects and protects neurons from death following cerebral anoxia. It might thus be useful in the treatment of acute neurological conditions such as stroke.

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