Hundred milligrams is the lock; the pill is the pairing
This desk locks modafinil at 100 mg. Narcolepsy and shift-work labels often discuss 200 mg. People still start or split around 100 mg and forget that induction does not wait for a 'full' wake dose.
FDA language is blunt: effectiveness of steroidal contraceptives may be reduced with PROVIGIL and for one month after discontinuation. That includes combined pills, some rings, and implants that rely on steroid hormones. Backup or a non-hormonal method is a clinic conversation, not a weekend guess.
Wake timing sits on the shift page. This page stays on the enzyme story. Brand foil literacy: Modalert orbit.
Transplant troughs and a quiet midazolam
Modafinil can lower cyclosporine. A new 100 mg wake habit after transplant is a level week.
Midazolam used for procedures may underperform if induction is on board. Write modafinil on the anesthesia list.
Hundred milligrams does not impress CYP3A4.
HIV and seizure charts add more 3A4 traffic. Bring the whole list.
The extra month is easy to miss
People stop 100 mg for a holiday and restart the pill the next morning. The label still wants caution for a month after the last modafinil. That is enzyme recovery, not moralizing.
Emergency contraception that depends on a steroid hormone can sit in the same conversation. Ask the clinician who owns contraception, not a forum dose chart.
Pregnancy planning means a dated stop and a method plan. Animal data and limited human data push avoidance in pregnancy; that is not an interaction footnote.
Induction does not treat apnea
Untreated sleep apnea plus 100 mg is residual sleepiness, not proof you need 200 mg.
Download the CPAP card before a dose argument.
Cataplexy is not a modafinil job.
Psychiatric activation and serious rash are stop-and-call, not pairing trivia.
Cyclosporine and a quiet midazolam
Modafinil can lower cyclosporine. A new 100 mg wake habit after transplant is a level week, not a productivity hack.
Midazolam used for procedures may underperform if induction is on board. Write modafinil on the anesthesia list. 'It is only 100 mg' does not impress CYP3A4.
HIV and seizure charts add more 3A4 traffic. Bring the whole list.
Induction does not treat apnea
Untreated sleep apnea plus 100 mg is residual sleepiness, not proof you need 200 mg. Download the CPAP card before a dose argument.
Cataplexy is not a modafinil job. Sodium oxybate conversations belong in sleep clinic, not a CYP page.
Psychiatric activation and rash (including rare serious skin reactions) are stop-and-call, not pairing trivia.
Food is minor; the partner list is not
Food has a small PK effect versus the enzyme list. Do not skip the contraceptive talk because you took 100 mg with skyr.
A late 100 mg steals sleep and then people add zopiclone. That is a CNS stack, not CYP3A4.
Shift workers who dose every calendar morning on rest days invent insomnia. That clock lives on the shift trace.
Omeprazole and diazepam are the other arrow
Modafinil inhibits CYP2C19. Omeprazole, diazepam, and phenytoin can rise.
That is the opposite arrow from contraceptive failure.
A high-dose diazepam habit plus new 100 mg is a sedation watch.
INR conversations happen when any inducer-inhibitor mix changes. Call if the pair is new.
The extra month after the last 100 mg
FDA language: steroidal contraceptives may fail during PROVIGIL and for one month after discontinuation.
Stopping 100 mg for a holiday and restarting the pill the next morning misses enzyme recovery.
Rings and implants that rely on steroid hormones sit in the same conversation until a clinician exempts a specific product.
Emergency contraception that depends on a steroid hormone needs a clinician, not a forum chart.
Omeprazole and diazepam are the other arrow
Modafinil inhibits CYP2C19. Omeprazole, diazepam, and phenytoin appear in interaction tables as exposure can rise. That is the opposite arrow from contraceptive failure.
A new PPI plus 100 mg is not usually a crisis. A high-dose diazepam habit plus new modafinil is a sedation watch.
Warfarin monitoring conversations happen when any inducer/inhibitor mix changes. INR is a clinic call if the pair is new.
Apnea, stacks, and rash
Untreated sleep apnea plus 100 mg is residual sleepiness, not proof you need 200 mg. Download the CPAP card.
Cataplexy is not a modafinil job. Armodafinil 50 mg is not a second tablet on top of 100 mg.
Caffeine stacks invent palpitations. Alcohol plus a wake drug plus a missed sleep night is a judgment story.
Psychiatric activation and serious rash are stop-and-call.
Food has a small PK effect versus the enzyme list. Do not skip the contraceptive talk because you took 100 mg with skyr.
Shift clocks live on the shift page. Parent: modafinil orbit.
Strong inducers steal wake
Carbamazepine and rifampin can steal modafinil. Sleepiness returns.
Two inducers also wreck hormonal contraception on their own.
HIV regimens vary. Bring the card. Do not add a black-market foil.
Weekend skip of 100 mg does not start the month-after clock unless you truly stopped the INN.
Narcolepsy patients usually do not weekend-skip. Diagnosis owns the calendar.
Source disputes: [email protected]. Severe rash or chest pain: 112.
CYP arrows around Provigil 100 mg
FDA language is blunt. Steroidal contraceptives may fail with PROVIGIL and for one month after the last tablet. Combined pills, some rings, and implants that rely on steroid hormones sit in that sentence until a clinician exempts a specific product.
Backup or a non-hormonal method is a clinic plan. Do not take two pills as homemade induction math. Emergency steroid contraception needs a clinician, not a forum chart.
Modafinil can lower cyclosporine. A new 100 mg habit after transplant is a trough week, not a productivity hack. Do not raise cyclosporine from a blog.
Midazolam may underperform. Write 100 mg on the anesthesia list. Strong 3A4 inducers such as carbamazepine and rifampin steal modafinil and also wreck hormonal contraception on their own.
Modafinil inhibits CYP2C19. Omeprazole, diazepam, and phenytoin can rise. A high-dose diazepam habit plus new 100 mg is a sedation watch. INR if warfarin sits on the new mix.
Untreated apnea plus 100 mg is residual sleepiness, not proof you need 200 mg. Download the CPAP card. Cataplexy is not a modafinil job.
Do not add Artvigil 50 mg on top of 100 mg. Same enzyme family. Caffeine stacks invent palpitations. Alcohol plus a wake drug plus a missed sleep night is a judgment story.
Serious rash and psychiatric activation are stop-and-call. Food has a small PK effect versus the enzyme list.
This desk locks 100 mg. Labels often discuss 200 mg. Induction does not wait for a full wake dose. The bag wins.
Shift clocks: shift trace. Brand foil: Modalert. Parent: modafinil orbit.
Weekend skip does not start the month-after clock unless you truly stopped the INN. Narcolepsy usually does not weekend-skip.
[email protected] for sources. 112 for severe rash, chest pain, or suicidal thoughts after a dose.
Contraceptive month and CYP arrows
FDA: effectiveness of steroidal contraceptives may be reduced with PROVIGIL and for one month after discontinuation.
That includes combined pills and some rings and implants that rely on steroid hormones.
Backup or a non-hormonal method is a clinic conversation. Do not take two pills as homemade induction math.
Cyclosporine levels can fall. A new 100 mg wake habit after transplant is a level week.
Midazolam may underperform. Write modafinil on the anesthesia list. Hundred milligrams does not impress CYP3A4.
Modafinil inhibits CYP2C19. Omeprazole, diazepam, and phenytoin can rise. Warfarin INR if the mix is new.
Do not add Artvigil on top
Armodafinil 50 mg is not a second tablet on top of modafinil 100 mg.
Same enzyme family. See armodafinil 50 mg.
Caffeine stacks invent palpitations. Count the cups.
Alcohol plus a wake drug plus a missed sleep night is a judgment and BP story.
Caffeine, alcohol, and a second stimulant
Caffeine stacks are how people invent palpitations and then blame 100 mg. Count the cups.
Alcohol plus a wake drug plus a missed sleep night is a judgment and BP story. It is not a labeled CYP pair, still a bad night.
Armodafinil is not a second tablet on top of modafinil. Same enzyme family. See armodafinil 50 mg.
One extra enzyme note at 100 mg
If the 100 mg clock is honest and you still crash at 15:00, download the CPAP hours before anyone raises the milligrams. Apnea plus a CYP story is two problems. A silent jump to 200 mg fixes neither.
The 100 mg enzyme scrap
Write 100 mg time, contraceptive method, last dose if stopping, cyclosporine or midazolam history, carbamazepine or rifampin, PPI and diazepam. That is the enzyme packet.
Steroidal contraceptives may fail during use and for one month after. Backup stays. Do not take two pills as induction math. Rings and implants that rely on steroid hormones sit in the same talk.
A fine cyclosporine trough last week is before induction. Plan another after 100 mg is steady. Midazolam premed may underperform. Write the wake drug on the anesthesia list.
Omeprazole plus 100 mg is usually a mention, not a stop-the-PPI night. High-dose diazepam plus new modafinil is a sedation watch. INR if warfarin is new to the mix.
Fifteen-hundred crash after 06:00 100 mg is often apnea or sleep total, sometimes an inducer. Download CPAP before a silent jump to 200 mg. Do not add Artvigil on top.
Serious rash day ten is urgent, not a CYP curiosity. Parent: modafinil orbit. Shift: shift trace. 112 for rash or chest pain.
Enzyme packet
Write 100 mg time, contraceptive method, last dose if stopping, cyclosporine or midazolam history, carbamazepine/rifampin, PPI and diazepam. Shift clock: shift trace.
Parent: modafinil orbit. [email protected] for sources. 112 for severe rash, chest pain, or suicidal thoughts after a dose.
Sources
- FDA Provigil (modafinil) - Drug Interactions; steroidal contraceptive effectiveness reduced during use and for 1 month after
- DailyMed modafinil - CYP3A4 induction, CYP2C19 inhibition examples
Checked against the current label and reviewed by Dr. Ingrid Bergsson. See Lift, Chart, Peer-pass, Publish.