Misoprostol (Cytotec) is a prescription medication that's FDA approved to lower the risk of stomach ulcers in certain people who take nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen. It's also sometimes used off-label for a medical abortion or to induce labor during pregnancy. You usually take it by mouth, and the dose depends on what you’re using it for. Common side effects include diarrhea and stomach pain.
Reduce the risk of stomach ulcers caused by NSAIDs - FDA-approved
Medical abortion - Off-label
Labor induction - Off-label
Misoprostol (Cytotec) is a prostaglandin analogue, which acts like the natural prostaglandins your body makes. It works by lowering the amount of stomach acid and protecting your stomach lining. This is important because NSAIDs can reduce natural prostaglandins that normally protect your stomach, leading to ulcers.
For medical abortion or labor induction, misoprostol (Cytotec) works by causing the uterus to contract and softening the cervix to help start the process.
Source: DailyMed
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Incidence not known
Bladder pain
bloody nose
bloody or black, tarry stools
bloody or cloudy urine
blurred vision
body aches or pain
chills
confusion
difficult, burning, or painful urination
difficulty with breathing
difficulty with moving
difficulty with swallowing
dizziness
dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
ear congestion
feeling unusually cold
frequent urge to urinate
headache
loss of voice
lower back or side pain
muscle pain or stiffness
nervousness
pain in the joints
pale skin
pounding in the ears
puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
severe stomach pain
shivering
slow or fast heartbeat
sweating
tightness in the chest
troubled breathing with exertion
unusual bleeding or bruising
unusual tiredness or weakness
vomiting of blood or material that looks like coffee grounds
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Less common
Acid or sour stomach
belching
bloated
excess air or gas in the stomach or intestines
full feeling
indigestion
passing gas
stomach discomfort or upset
Incidence not known
Blistering, crusting, irritation, itching, or reddening of the skin
breast pain
burning, dry, or itching eyes
change in taste
continuing ringing or buzzing or other unexplained noise in the ears
cracked, dry, scaly skin
discharge, excessive tearing
hair loss or thinning of the hair
hearing loss
lack or loss of strength
paleness of the skin
redness, pain, swelling of the eye, eyelid, or inner lining of the eyelid
weight changes
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
FDA approved to lower the risk of stomach ulcers
Proven safe and effective when used for medical abortions or labor induction
Works within minutes to hours
Can cause diarrhea and cramping
Needs to be taken four times a day with food if used for ulcer prevention
Must be taken at specific time intervals if taken for medical abortion
For ulcer prevention
Take misoprostol (Cytotec) four times a day with food to help lower your risk of diarrhea. For example, take it three times with meals and once at bedtime.
Let your prescriber know if you have a lot of side effects from misoprostol (Cytotec). Your dose might need to be lowered if it's too hard to tolerate.
If you stop taking NSAIDs, you can also stop taking misoprostol (Cytotec) because this medication is used to prevent stomach ulcers caused by NSAIDs.
Antacids can lower how much misoprostol (Cytotec) your body absorbs. Most people can take them together, but avoid magnesium-containing antacids like Mylanta, since they can worsen diarrhea.
For medical abortion
Instead of swallowing misoprostol (Cytotec), place the pills either under your tongue or between your cheeks and gums for 30 minutes until they dissolve. Don’t eat or drink while the pill is dissolving, but drink water afterward to wash it down. You might need to repeat this step, depending on your prescriber’s instructions.
Expect stomach cramps and vaginal bleeding within 1 to 4 hours after taking misoprostol (Cytotec). If you don't have bleeding after 24 hours, let your prescriber know, because you might need another dose. Everyone’s experience is different.
For labor induction
You'll either take misoprostol (Cytotec) by mouth or have it placed vaginally by a healthcare professional. Your prescriber will help decide the best way to start labor.
Misoprostol (Cytotec) can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.
Misoprostol (Cytotec) shouldn't be used to prevent stomach ulcers if you're pregnant. This medication can cause serious pregnancy complications, including pregnancy loss, premature birth, birth defects, or damage to the uterus. Because of these risks, your prescriber might ask you to use birth control, take pregnancy tests, or start the medication after your next period to make sure you’re not pregnant. If you're pregnant and need to prevent ulcers from NSAIDs, talk to your prescriber about safer alternatives for you and your baby.
However, misoprostol (Cytotec) can be used safely under medical supervision for medical abortion or labor induction. Your prescriber will explain exactly how and when to take it to make sure it’s used safely.
Reduce the risk of stomach ulcers: The typical dose is 200 mcg by mouth four times a day with food.
Medical abortion: It's taken either with mifepristone (Mifeprex) or on its own.
Labor induction: It's usually given in the hospital by a healthcare professional before labor at lower doses.
Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Use for ulcer prevention during pregnancy
History of allergy to prostaglandins
Reduce the risk of stomach ulcers caused by NSAIDs - FDA-approved
Medical abortion - Off-label
Labor induction - Off-label
Prevention and treatment of heartburn (gastroesophageal reflux disease or GERD)
Gastric ulcer (open sore in the stomach)
Duodenal ulcer (open sore in the first part of the small intestine)
Heartburn (GERD)
Erosive esophagitis due to GERD (inflammation of the esophagus)
Other conditions that cause too much stomach acid secretion (i.e., Zollinger-Ellison syndrome)
Heartburn — OTC only
Lower the risk of duodenal ulcer caused by Helicobacter pylori (H. pylori) infection
Other medical conditions that cause too much stomach acid (e.g., Zollinger-Ellison syndrome)
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