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Varenicline, sold under the brand names Chantix and Champix among others, is a medication used for smoking cessation [5] [7] and for the treatment of dry eye syndrome. [6] [8] It is a nicotinic acetylcholine receptor partial agonist.
A study found that a combination of 60 μg/day EE and 0.25 mg/day levonorgestrel in women and men resulted in peak levels of EE of 495 pg/mL and 251 pg/mL, area-under-the-curve levels of EE of 6.216 pg/mL/hour and 2.850 pg/mL/hour, and elimination half-lives of 16.5 hours and 10.2 hours, respectively. [8]
[76] [77] [1] [78] Inhibition of ovulation occurred in about 90% of women at a dose of 0.5 to 2 mg/day and in 100% of women at a dose of 3 mg/day. [79] The total endometrial transformation dose of drospirenone is about 50 mg per cycle, whereas its daily dose is 2 mg for partial transformation and 4 to 6 mg for full transformation.
Adderall and Mydayis [11] are trade names [note 2] for a combination drug containing four salts of amphetamine.The mixture is composed of equal parts racemic amphetamine and dextroamphetamine, which produces a (3:1) ratio between dextroamphetamine and levoamphetamine, the two enantiomers of amphetamine. [13]
Lisdexamfetamine is available as the dimesylate salt in the form of both oral capsules and chewable tablets. [7] A dose of 50 mg of lisdexamfetamine dimesylate is approximately equimolar to a 20 mg dose of dextroamphetamine sulfate or to 15 mg dextroamphetamine free-base in terms of the amount of dextroamphetamine contained.
Adderall 20 mg tablets, some broken in half, with a lengthwise-folded US dollar bill along the bottom. Another pharmaceutical that contains dextroamphetamine is commonly known by the brand name Adderall. [167] [31] It is available as immediate release (IR) tablets and extended release (XR) capsules.
The duration of action of a single oral dose is longer than the half-life and may be up to 12 hours if the single dose is high enough (e.g., 80 mg). [72] Effective plasma concentrations are between 10 and 100 mg/L. [ citation needed ] Toxic levels are associated with plasma concentrations above 2000 mg/L. [ citation needed ]
Polystyrene sulfonate, a cation-exchange resin, is typically supplied with Na + as the counterion.. In chemistry, a counterion (sometimes written as "counter ion", pronounced as such) is the ion that accompanies an ionic species in order to maintain electric neutrality.