01 Time the 100 mg to the shift start, not to the alarm after you finally sleep
If the shift starts at 19:00, the SWD how-to-take is about 18:00, not 09:00 when you collapse into bed, and not 02:00 when the cafeteria coffee fails. Taking 100 mg after the sleep block "so I can do chores" then another 100 mg before work is 200 mg without a written 200 mg plan, plus a ruined sleep opportunity.
The modafinil leaf says the usual adult labeled amount is 200 mg. A prescribed 100 mg is a sensitive-person or older-adult rung. It is not half a permission to redose.
OSA still needs the airway plan. Narcolepsy still needs its own morning clock. This margin is the night-shift file only.
02 What to write on a slip for the next clinician
Hour of swallow, shift start, whether a morning tablet also happened, other wake drugs, contraceptive method. That slip beats a shrug at 02:00.
Elderly colleagues on 100 mg should not "match" a 200 mg coworker. Clearance can fall.
Armodafinil leftovers are a different tablet. Do not convert.
If the tablet died after rifampin started, that is enzyme induction, not a redose. Ask both desks.
Elise timed the hour-before line against the SWD section. Mail us if we implied 100 mg was the trial dose. It was 200 mg.
03 Driving home and fitness-for-duty
A clean feeling at 20:00 does not certify the drive at 07:00. Sleep debt plus a fading tablet is a crash story. This leaf will not clear you for a route.
Serious rash or psychiatric change on a night unit: stop-and-call. Do not push through until handover.
Schedule IV: the night locker is not a communal jar. A resident without an SWD diagnosis is not a labeled user. This desk will not coach call-room use.
If Saturday is extra overtime, that is still one pre-shift swallow, not a housework bonus.
CYP backup contraception still applies on nights. See the CYP ink.
04 The contraceptive month still applies on nights
Night workers forget the CYP ink because the shift talk ate the visit. Steroidal contraception can fail on modafinil and for one month after the last tablet. Backup does not care that your tablet is 100 mg.
Schedule IV: the night locker is not a communal jar.
05 How to place 100 mg when the roster flips mid-week
Night starts follow the SWD hour-before-shift clock. Day starts that are really a day job follow the morning swallow. Rotating rosters need the clinician to say which diagnosis they are treating. This margin will not invent a flip algorithm.
Do not take 100 mg at 05:00 and again at 18:00 on flip weeks. One clock per 24 hours unless someone wrote a split, which the label does not describe as routine.
The SWD trial used 200 mg. Your 100 mg is a prescribed rung. A 02:00 slump is not a second 100 mg.
Protect a sleep block after the night. The tablet does not deposit sleep. Alcohol to force the day sleep wrecks Saturday.
OSA still needs the airway plan. The leaf says that. This file is the night clock.
06 What to write on a slip before the next night-shift clinic
Hour of swallow, shift start, whether a morning tablet also happened, other wake drugs, contraceptive method. That slip beats a shrug at 02:00.
Elderly colleagues on 100 mg should not "match" a 200 mg coworker. Clearance can fall.
Armodafinil leftovers are a different tablet. Do not convert. Caffeine by the pot is a third lever.
If the tablet died after rifampin started, that is enzyme induction, not a redose. Ask both desks.
Elise timed the hour-before line against the SWD section. Mail us if we implied 100 mg was the trial dose. It was 200 mg.
07 The tablet does not pay the sleep debt
Effective half-life after multiple doses is about 15 hours. A Thursday pre-shift 100 mg is not gone before a Friday daytime sleep if you also took something Thursday morning. People then add alcohol to force the day sleep and wonder why Saturday is wrecked.
Serious rash and psychiatric change are stop-and-call, same as on the leaf. A night unit is a bad place to "push through" a chest-wall rash.
Driving home after a 12-hour shift is still a risk even if the 100 mg felt clean at 20:00. The drug is not a fitness-for-duty certificate.
| Clock error | What to do instead |
|---|---|
| 100 mg at 08:00 after night shift | Protect sleep; do not chase chores |
| Second 100 mg at 02:00 slump | Ask before redosing; usually a no |
| 200 mg crushed on Saturday for errands | Not a labeled use |
| Skip CPAP because 100 mg "worked" | Airway plan stays |
08 Fitness-for-duty is not a clean feeling at 20:00
A clean feeling at 20:00 does not certify the drive at 07:00. Sleep debt plus a fading tablet is a crash story. This leaf will not clear you for a route.
Serious rash or psychiatric change on a night unit: stop-and-call. Do not push through until handover.
Schedule IV: the night locker is not a communal jar. A resident without an SWD diagnosis is not a labeled user.
If Saturday is extra overtime, that is still one pre-shift swallow, not a housework bonus.
CYP backup contraception still applies on nights. See the CYP ink.
09 How to pick one swallow hour when the roster flips twice in one week
Night starts follow the SWD hour-before-shift clock. Day starts that are really a day job follow the morning swallow. Rotating rosters need the clinician to say which diagnosis they are treating. This margin will not invent a flip algorithm.
Do not take 100 mg at 05:00 and again at 18:00 on flip weeks. One clock per 24 hours unless someone wrote a split, which the label does not describe as routine.
The SWD trial used 200 mg. Your 100 mg is a prescribed rung. A 02:00 slump is not a second 100 mg.
Protect a sleep block after the night. The tablet does not deposit sleep. Alcohol to force the day sleep wrecks Saturday.
OSA still needs the airway plan. The leaf says that. This file is the night clock.
10 One hour, one tablet, then sleep later
Protect a sleep block after the night swallow. Reviewed 21 August 2026, Elise Moreau, Bordeaux.
One swallow hour per twenty-four hours. Night starts: about one hour before the shift. Day jobs: morning. Do not take 100 mg at dawn and again at dusk on a flip week. The SWD trial used 200 mg. Your 100 mg is a rung, not a 02:00 add-on.
Protect a sleep block. The tablet does not deposit sleep. A clean feeling at 20:00 does not certify the drive home. OSA still needs the airway plan. Schedule IV is not a communal jar.
Write the hour, the shift start, and the contraceptive method on one slip. The leaf locks 100 mg. The CYP ink keeps the one-month backup. Mail [email protected] if we implied 100 mg was the trial dose.
A 19:00 start wants a swallow about 18:00. Do not also swallow at 08:00 after you sleep. A day-off drive is not a labeled SWD use. Sleep opportunity still comes first. This margin will not clear a route. A communal 100 mg jar on a unit is how unlabeled use starts. Go home or call. Do not swallow a roommate's tablet.
If 100 mg fades at midnight, ask whether the written total should be 200 mg pre-shift - the trial dose - rather than a midnight add-on. Elderly colleagues on 100 mg should not match a 200 mg coworker. Clearance can fall. Armodafinil leftovers are a different tablet. Do not convert.
Skipping Friday night's 100 mg because Saturday is a wedding is your choice if the shift is off. Drinking is not a labeled pairing. Taking 100 mg Saturday afternoon to enjoy the wedding is not SWD and it wrecks Saturday night sleep. Keep the blister in your name. Schedule IV plus a party is how tablets get shared.
Write whether a morning tablet also happened. That slip beats a shrug at 02:00. If the tablet died after rifampin started, that is enzyme induction, not a redose. Ask both desks before anyone invents a lunch 100 mg.
Protect a sleep block after the night even when the tablet felt clean at 05:00. The tablet does not deposit sleep. Alcohol to force the day sleep wrecks Saturday and still does not replace an airway plan if OSA is the diagnosis. This margin will not sign a route home.
A resident without an SWD diagnosis is not a labeled locker user. Keep the 100 mg blister in your name on night units. Schedule IV stays personal here too.