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Ompleted in the morning. best online sites generic viagra The outcome of both tests showed that d-amphetamine caused a dose dependant impairment of sleep maintenance, but modafinil did not. Here in lies the problem for those who have difficulty staying alert and awake during the day. buy generic viagra The use of "classic" stimulants such as amphetamines threaten to reduce total sleep time and rem sleep, this will ultimately mean higher and higher doses are required and thus creates a vicious circle. On the other hand. order viagra Modafinil has not been shown to interfere with night time sleep, thus clearly indicating that the two compounds operate by different methods. ingredients for viagra Numerous studies on animals since the mid 1980's have confirmed the ability of modafinil to increase awakeness and alertness without serious side effects, or dependency. One test on rats (4) produced an interesting result. 100mg viagra directions The researchers discovered that modafinil decreased feeding and reduced body-weight! cheap viagra online The amounts of modafinil required were not dose dependant and there was no alteration in the drink- feed ratio. Their conclusion was a reference to the possible mechanisms that underlie the relation between sleep, feeding and metabolism. Various human trials have concentrated upon modafinil as a therapeutic agent to help maintain alertness and vigilance. A note worthy conclusion of one clinical trial (10) compared modafinil to amphetamine and described amphetamine as "vigilance increasing" but modafinil as "vigilance promoting. viagra without prescription " this is an interesting comment because as we've seen, modafinil won't prevent a person from sleeping if they want to but if they wish to remain awake they will do so with a far greater alertness. This was borne out in one clinical trial (11) where volunteers were subjected to 60 hours of sleep deprivation! viagra online without prescription During their continued wakefulness, their vigilance was assessed using questionnaires, analogue visual scales and sleep latency tests. viagra effects on women The subjects received either cardinal mg modafinil or a placebo every 8 hours. The modafinil group sustained a satisfactory level of vigilance with an absence of sleep episodes, unlike the placebo group who gradually declined and slipped into "micro-sleep" episodes, (as one might expect when awake for longer than 24 hours! ) a french study (9) conducted over 3 years, discovered that modafinil reduced drowsiness in 83% of hypersomniac patients and 71% of narcoleptics. Modafinil did not produce peripheric side effects, disturb night sleep and it was never responsible for drug dependence. Another french study conducted with 149 patients over a period of 2 years (13), was treating patients with narcolepsy-cataplexy at 200 mg to cardinal mg daily. The pat. buy viagra for men how to use viagra 50mg