Beginner Dose

Modafinil 100 mg

100 mg is the smart way to start Modafinil. A lower dose still delivers noticeable wakefulness and focus for most people, with a lower chance of side effects. Order Modalert 100 directly, or halve a scored 200 mg tablet for extra value.

Shop Tablets Who Should Start Here

A 200 mg Modafinil tablet split into two 100 mg beginner doses with a pill cutter

FREE Shipping Orders Over A$199

Popular Modafinil Options Available

Shipping Insurance Available

Shipped in Discreet Packaging

Modafinil 100 mg is the recommended starting dose for anyone new to the medicine. You have two ways to get it: order Modalert 100 mg — a ready-made 100 mg tablet by Sun Pharma — or halve a scored 200 mg tablet, giving you two 100 mg doses from a single tablet and stretching your per-dose cost. At 100 mg most first-timers still report noticeable focus improvement, with a lower chance of headache, nausea, or disrupted sleep. This page covers who should begin at 100 mg, both ways to get the dose, and the practical steps that keep side effects to a minimum. Always follow the product information and your prescriber's advice on dosing.

Who Should Start at 100 mg?

In short: almost everyone trying Modafinil for the first time. It is especially sensible if any of the following describe you.

First-time users

You have never taken Modafinil and do not yet know how your body responds. Starting low lets you gauge your reaction before committing to a full tablet.

Stimulant-sensitive people

If caffeine already makes you jittery or anxious, 100 mg gives you the wakefulness benefit with a gentler ramp-up.

Lighter or older adults

Body weight and age both affect how a dose feels. A smaller dose is a prudent starting point that you can build on if needed.

Half-day tasks

If you only need a morning of deep focus rather than a full 12–15 hours, 100 mg clears your system sooner and protects your sleep.

Confirmed good tolerance at 100 mg? Step up to the standard dose — see our Modafinil 200 mg guide.

Halving a 200 mg Tablet for Value

Buying 200 mg tablets and splitting them is the most cost-effective way to run Modafinil at 100 mg — one tablet becomes two doses.

Choose a scored 200 mg brand such as Modalert 200 or Modvigil 200. The centre score line is designed for a clean, even split.

Use a cheap pill cutter from any pharmacy for the most even halves — a knife tends to crumble the edges.

Store the second half in the blister or a dry, airtight container and use it within a few days.

Two doses per tablet halves your effective per-dose cost. Larger packs lower the per-tablet price further — see our ways to save.

Minimising Side Effects

The most common Modafinil side effects — headache, nausea, and insomnia — are largely preventable, and a 100 mg dose reduces their likelihood further. Follow these steps:

Hydrate. Drink water with your dose and keep drinking regularly across the day — many users find headaches are linked to dehydration and reduced thirst while dosed.
Take it with breakfast. Food does not meaningfully change absorption but does reduce the risk of nausea on an empty stomach.
Dose early. Before 10 AM is ideal. Modafinil's long half-life means late dosing commonly disrupts sleep, and a smaller dose leaves less active drug in your system by bedtime.
Skip extra caffeine on day one. Learn how Modafinil alone affects you before stacking stimulants, which can cause jitters.
Eat regular meals. Mild appetite suppression is common; skipping lunch tanks blood sugar and undoes the cognitive gains.

If side effects persist at 100 mg, that is a signal to pause and speak with your GP rather than pushing the dose higher. Most people find the lower dose comfortable and only step up to 200 mg once they are confident in their response.

TGA Disclaimer: Modafinil is a Schedule 4 (Prescription Only) medicine in Australia, regulated by the Therapeutic Goods Administration. This page is general information, not medical advice. Dosing should be individualised — always consult your GP or pharmacist before starting Modafinil. Sources: TGA, healthdirect Australia.