Modiodal (Modafinil)

Modafinil, the active ingredient in Modiodal, is a eugeroic (wakefulness‑promoting agent) presented as an oral dosage form for oral use. It is indicated for the treatment of narcolepsy, excessive daytime sleepiness associated with obstructive sleep apnea, and shift work disorder in adults.

GNH USA supplies Modiodal as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Modiodal is a wakefulness‑promoting agent used in several sleep‑related disorders.

- Narcolepsy: reduces daytime sleep attacks and improves alertness. - Obstructive sleep apnea‑related excessive daytime sleepiness: mitigates residual sleepiness when standard therapy is insufficient. - Shift work disorder: helps maintain alertness during scheduled work hours that fall outside the normal circadian rhythm.

Modiodal may cause a range of adverse reactions, most of which are mild to moderate.

Common Side Effects: - Headache: mild to moderate intensity. - Nausea: occasional gastrointestinal upset. - Insomnia: difficulty initiating or maintaining sleep. - Anxiety or nervousness: transient feelings of tension. - Dizziness: light‑headed sensation. - Dry mouth: reduced salivation.

Serious or Rare Side Effects: - Severe rash or Stevens‑Johnson syndrome: requires immediate medical attention. - Psychiatric symptoms: emergence of hallucinations, mania, or depression. - Cardiac arrhythmia: irregular heart rhythm in susceptible individuals. - Anaphylactic reaction: rapid onset of swelling, breathing difficulty, or hypotension.

Before initiating Modiodal, clinicians should consider several safety factors.

- Cardiovascular assessment: evaluate blood pressure and heart rhythm. - Psychiatric history: monitor for pre‑existing mood disorders. - Hepatic function: adjust use in moderate to severe liver impairment. - Concomitant stimulants: avoid combining with other central nervous system stimulants. - Pregnancy and lactation: discuss potential risks with the prescriber. - Store at ambient temperature: keep in the original container, protect from moisture and direct sunlight.

Modiodal can interact with other medicines, requiring attention to the level of risk.

Major Interactions (Avoid): - Monoamine oxidase inhibitors (MAOIs): risk of hypertensive crisis. - Strong CYP3A4 inhibitors (e.g., ketoconazole, erythromycin): may increase plasma levels. - Serotonergic antidepressants: potential for serotonin syndrome.

Moderate Interactions (Monitor Closely): - Oral contraceptives: reduced hormonal efficacy, consider alternative contraception. - Antihypertensive agents: possible attenuation of blood‑pressure‑lowering effect. - Caffeine‑containing products: heightened stimulant effect. - Alcohol: additive central nervous system depression.