Modafinil 100 mg is a prescription medication used to promote wakefulness in individuals suffering from excessive daytime sleepiness. It is commonly prescribed for sleep disorders such as:
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Narcolepsy
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Obstructive Sleep Apnea (OSA) (adjunct to CPAP therapy)
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Shift Work Sleep Disorder (SWSD)
Modafinil works by affecting neurotransmitters in the brain that regulate wakefulness, without acting like a traditional stimulant (e.g. amphetamines).
Key Benefits:
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Promotes alertness and mental focus
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Reduces excessive daytime sleepiness
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Lower risk of dependency compared to older stimulants
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May improve cognitive function, reaction time, and motivation (off-label uses)
Dosage & Administration:
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Usual Adult Dose: 100–200 mg once daily
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For narcolepsy or OSA: Taken in the morning
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For shift work disorder: Taken about 1 hour before the work shift starts
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Swallow with water; can be taken with or without food
Side Effects:
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Headache, nausea, anxiety
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Dizziness, dry mouth, insomnia
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Rare: Skin rash, mood changes, allergic reactions
Warnings & Precautions:
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Not recommended for people with heart problems, hypertension, or liver disease without medical advice
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Avoid alcohol and CNS depressants
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Use caution when driving or operating machinery until you know how it affects you
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May reduce effectiveness of hormonal contraceptives – use backup birth control
Storage:
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Store at room temperature (20–25°C / 68–77°F)
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Keep out of reach of children
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Protect from moisture and direct light