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Sun Pharma - Capsule - 15 S
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Prescription required
Armodafinil 150 mg
Available at our pharmacy counter
This medicine is dispensed in person against a valid prescription and is not sold online. Ask our pharmacist about availability, or speak to a registered doctor.
In-store reference price ₹347
Waklert 150 mg Tablet is used for treatment of excessive daytime sleepiness associated with narcolepsy, obstructive sleep apnea (OSA) (as adjunct to CPAP/primary therapy), and shift work sleep disorder (SWSD).
Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated September 2026
Waklert 150 mg Tablet contains Armodafinil 150 mg. It belongs to the Eugeroic (wakefulness-promoting agent; dopamine reuptake inhibitor activity) class of medicines.
Armodafinil is a wakefulness-promoting agent that increases alertness by modulating neurotransmitters in the brain (including dopamine pathways via dopamine transporter inhibition) and other arousal systems. It helps reduce excessive sleepiness without being a traditional amphetamine stimulant.
Take exactly as prescribed. For narcolepsy/OSA: usually taken once daily in the morning. For SWSD: usually taken about 1 hour before the start of the work shift. Can be taken with or without food; swallow tablet whole with water. Avoid taking late in the day unless directed, as it may cause insomnia.
Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.
Take it as soon as you remember. If your next dose is almost due, skip the one you missed — never take two doses together to catch up.
An overdose of this medicine can cause deep drowsiness, confusion and fits. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.
Most side effects of Waklert are mild and settle as the body adjusts. Reported side effects include:
Stop the medicine and seek help immediately for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.
| Pregnancy | Consult doctor (use with caution; generally not recommended unless clearly needed) |
|---|---|
| Breastfeeding | Consult your doctor before using this while breastfeeding. |
| Alcohol | Avoid |
| Driving | May cause drowsiness or affect your concentration. Do not drive until you know how it affects you. |
| Kidney | Use with caution if you have kidney disease — your doctor may adjust the dose or monitor your kidney function. |
| Liver | Use with caution if you have liver disease — your doctor may adjust the dose or monitor your liver function. |
| Habit forming | No |
Prescription-only wakefulness agent. May cause serious rash or hypersensitivity reactions (stop and seek medical help if rash, fever, mouth sores, swelling, breathing trouble). Can cause psychiatric symptoms (anxiety, agitation, hallucinations, suicidal thoughts) especially in those with mental illness—use with caution. May increase blood pressure/heart rate—caution in hypertension, heart disease, arrhythmias. May impair ability to drive/operate machinery until effects are known. Not a substitute for adequate sleep; OSA patients should continue CPAP/primary therapy. Potential for misuse/dependence—use only under medical supervision. Dose adjustment may be needed in severe liver impairment; caution in elderly.
Not for anyone with a known allergy to this medicine or to any ingredient in the pack.
Hormonal contraceptives (reduced effectiveness—use alternative contraception during and for ~1 month after stopping), CYP3A4 substrates (may reduce levels e.g., midazolam, some antiretrovirals), CYP2C19 substrates (may increase levels e.g., diazepam, phenytoin, omeprazole), warfarin (monitor INR), anticonvulsants (phenytoin, carbamazepine), sedatives/alcohol (additive CNS effects), MAO inhibitors (use with caution)
Store below 25°C in a dry place. Protect from moisture and direct light. Keep out of reach of children.
Take it at the same time each day and do not miss doses. Keep your review appointments so the dose can be adjusted.

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The information on Waklert 150 mg Tablet is compiled from the manufacturer's prescribing information and the sources below, and is reviewed by a registered medical practitioner. It does not replace advice from your own doctor.