A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.
The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.
Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.
Known as Champix in the UK
CHANTIX (Varenicline) is a medication prescribed as an aid during smoking cessation. CHANTIX is a short-term medication that is taken over several months to help dampen cravings and response to nicotine.
CHANTIX binds to nicotinic acetylcholine receptors, which are the same targets as nicotine in tobacco. When CHANTIX binds to these receptors, it activates them but at a much lower level than nicotine. It also blocks nicotine from binding and activating these receptors, preventing the euphoria and addiction response caused by nicotine in the brain.
Take CHANTIX exactly as directed on the packaging. CHANTIX is typically first dispensed as a starter pack that contains both 0.5 mg tablets and 1 mg tablets.
After the starting pack, the typical maintenance dose of CHANTIX is 1 mg twice daily for 11 weeks. However, the dose may vary so take exactly as instructed by your physician.
The active ingredient is CHANTIX is varenicline.
After approval by the FDA, patients have reported the following neuropsychiatric side effects:
Most patients will not experience any of the above side effects, but if you do, please tell your physician or pharmacist immediately. You may need to stop taking CHANTIX and try a different medication for tobacco cessation.
Some patients taking CHANTIX have reported swelling of the skin, particularly in the face, mouth, limps, and throat. Stop taking CHANTIX if you experience swelling after taking it.
Some people have reported serious skin reactions like Stevens-Johnson Syndrome and Erythema Multiform after starting CHANTIX. Tell your physician if you have a history of these conditions.
The most common CHANTIX side effects reported in the original clinical trials were:
These side effects were also the most reported reasons for stopping CHANTIX. Stopping nicotine may also cause the listed side effects, so it is unclear how much nicotine withdrawal contributes to the adverse effects of CHANTIX.
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