Modalert is a product name associated with modafinil, an active ingredient also found in medicines marketed under the Provigil brand. However, a shared active ingredient does not automatically establish equivalent regulatory approval, manufacturing quality or interchangeability.

What Is Modalert 200mg?

Modalert 200mg is a tablet containing a declared 200mg dose of modafinil. Modafinil belongs to a class of medicines commonly described as eugeroics, or wakefulness-promoting agents.

Modafinil helps manage excessive sleepiness in certain diagnosed medical conditions. In the UK, its licensed use is restricted to excessive daytime sleepiness associated with narcolepsy in adults, with or without cataplexy.

Although modafinil is sometimes discussed in relation to focus, studying, shift work and productivity, these uses should not be confused with its approved medical indication in the UK.

Modalert 200mg Product Information

How Does Modalert 200mg Work?

Modafinil promotes wakefulness by affecting neurotransmitter activity in the central nervous system. Its precise mechanism is not completely understood.

One recognised action is inhibition of dopamine reuptake, which influences dopamine signalling in brain pathways associated with wakefulness. Additional neurotransmitter systems may also contribute to its effects.

Modafinil is different from caffeine and conventional stimulant medicines in its pharmacological activity, although this does not mean it is free from stimulant-like adverse effects or potential risks.

Individual responses vary. The presence of modafinil in a tablet does not guarantee improved concentration, memory, academic performance or productivity.

For a more detailed explanation, read our scientific guide to how modafinil works.

What Is Modalert 200mg Used For?

Modafinil is prescribed to manage excessive daytime sleepiness in patients with appropriate medical diagnoses. Within the UK, licensed modafinil medicines are indicated for adults with narcolepsy.

Narcolepsy and Excessive Daytime Sleepiness

Narcolepsy is a neurological sleep disorder that affects the brain’s ability to regulate sleep and wakefulness. Symptoms may interfere with work, education, social activities and daily functioning.

Common symptoms include:

• Persistent excessive daytime sleepiness
• Unexpected sleep episodes
• Sudden muscle weakness or cataplexy
• Sleep paralysis
• Hallucinations associated with falling asleep or waking
• Disrupted night-time sleep

Modafinil may reduce excessive daytime sleepiness, but it does not cure narcolepsy or treat every symptom of the condition.

A specialist assessment is needed to establish the underlying cause of excessive sleepiness and determine the most appropriate treatment.

Other Sleep Disorders

Modafinil has also been investigated or used for certain other sleep-related disorders internationally, including shift work sleep disorder and sleepiness associated with obstructive sleep apnoea.

However, these uses should not be presented as licensed indications for modafinil in the United Kingdom.

To explore other treatment options, see our guide to NHS alternatives to modafinil.

Modalert 200mg Dosage and Administration

UK prescribing information for licensed modafinil medicines identifies 200mg daily as the usual recommended starting dose for adults with narcolepsy. This is general prescribing information and does not establish that Modalert is itself UK-authorised or appropriate for an individual patient.

The dose and schedule must be selected by a qualified medical professional based on the patient’s diagnosis, response, medical history and other medicines.

Important Dosage Considerations

• Only take modafinil according to a valid prescription.
• Follow the timing and administration instructions given by your clinician.
• Do not increase the dose to compensate for sleep deprivation.
• Discuss insomnia or other unwanted effects with your prescriber.
• Older adults and people with severe liver impairment may require dose adjustments.
• Do not assume that two products with the same stated strength have identical quality or regulatory status.

Learn more in our complete modafinil dosage guide.

Possible Side Effects of Modalert 200mg

Modafinil can cause unwanted effects. The frequency and severity of side effects depend on individual factors, including medical history, other medication and treatment response.

Common Side Effects of Modafinil

• Headache
• Nausea
• Nervousness
• Anxiety
• Difficulty sleeping
• Dizziness
• Reduced appetite
• Digestive discomfort

Serious Side Effects

Although less common, modafinil can be associated with serious adverse reactions, including severe skin reactions, allergic responses, psychiatric symptoms and cardiovascular complications.

Seek urgent medical help if you experience a severe rash, blistering, facial swelling, breathing difficulties, chest pain or other concerning symptoms.

New or worsening psychiatric symptoms, including hallucinations, marked changes in mood or unusual behaviour, should be reported promptly to a healthcare professional.

Safety Precautions and Contraindications

Modafinil is not appropriate for everyone. Before treatment, your prescriber should assess existing medical conditions, potential contraindications and interactions with other medicines.

UK product information identifies contraindications including hypersensitivity to modafinil, uncontrolled moderate-to-severe hypertension and cardiac arrhythmias.

Additional medical supervision may be required for patients with:

• Cardiovascular conditions
• High blood pressure
• Psychiatric disorders
• History of substance misuse
• Significant liver impairment
• Other conditions requiring specialist monitoring

Always inform your prescriber about prescription medicines, over-the-counter treatments, vitamins and herbal supplements.

Modalert 200mg and Pregnancy

Modafinil should not be used during pregnancy. The UK’s Medicines and Healthcare products Regulatory Agency has warned that modafinil exposure during pregnancy may increase the risk of congenital malformations.

Patients planning pregnancy or who think they may be pregnant should contact their healthcare professional promptly to discuss appropriate treatment and care.

Modalert and Hormonal Contraception

Modafinil can reduce the effectiveness of several hormonal contraceptives, including certain oral contraceptive pills.

People who could become pregnant must use effective contraception during treatment and for two months after stopping modafinil, following medical advice about the appropriate method.

Can Modalert 200mg Be Taken With Caffeine?

Modafinil and caffeine influence wakefulness through different mechanisms, but combining them may increase unwanted effects such as nervousness, anxiety, palpitations or difficulty sleeping.

The suitability of caffeine consumption during modafinil treatment depends on individual medical circumstances and treatment response.

Ask your prescriber or pharmacist for advice rather than assuming the combination is suitable for everyone.

Modalert 200mg vs Provigil

Modalert and Provigil are product names associated with modafinil. Products containing the same declared active ingredient can differ in their manufacturers, formulations, regulatory approvals and quality assurance arrangements.

It is therefore not appropriate to claim that an individual Modalert product is clinically equivalent to an authorised Provigil formulation without reliable supporting evidence.

For further comparison of related medicines, read our guide to modafinil versus armodafinil.

Is Modalert 200mg Legal in the UK?

Modafinil is a prescription-only medicine in the United Kingdom. Its supply is subject to applicable medicines and pharmacy regulations.

The regulatory status of the specific Modalert 200mg brand should be verified separately from the status of modafinil as an active ingredient.

A medicine being advertised on a website or offered for international delivery does not establish that it is licensed or appropriately supplied in the UK.

For further details, read our guides explaining whether modafinil requires a prescription and UK modafinil regulations.

Frequently Asked Questions About Modalert 200mg

Helpful Modafinil Resources

Explore our related educational guides covering modafinil, prescription requirements and treatment considerations in the UK.

• How Modafinil Works: Scientific Guide
• Modafinil Dosage: Complete Guide
• How to Get Modafinil in the UK
• Modafinil Guidelines in the UK
• Do I Need a Prescription for Modafinil?
• Modafinil vs Armodafinil
• NHS Alternatives to Modafinil

Medical Sources and References

• Modafinil 200mg: Summary of Product Characteristics
• MHRA: Modafinil Restricted to Narcolepsy
• MHRA: Modafinil Pregnancy and Contraception Warning
• MHRA: Modafinil Medicines Information