methysergide (Oral route)
Commonly used brand name(s):
In the U.S.
Available Dosage Forms:
Therapeutic Class: Antimigraine
Chemical Class: Ergot Alkaloid
Uses For methysergide
Methysergide belongs to the group of medicines known as ergot alkaloids. It is used to prevent migraine headaches and some kinds of throbbing headaches. It is not used to treat an attack once it has started. The exact way methysergide acts on the body is not known.
methysergide is available only with your doctor's prescription.
Before Using methysergide
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For methysergide, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to methysergide or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Methysergide can cause serious side effects in any patient. Therefore, it is especially important that you discuss with the child's doctor the good that methysergide may do as well as the risks of using it.
Elderly people are especially sensitive to the effects of methysergide. This may increase the chance of side effects during treatment.
|All Trimesters||X||Studies in animals or pregnant women have demonstrated positive evidence of fetal abnormalities. This drug should not be used in women who are or may become pregnant because the risk clearly outweighs any possible benefit.|
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with Medicines
Using methysergide with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.
Interactions with Food/Tobacco/Alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Other Medical Problems
The presence of other medical problems may affect the use of methysergide. Make sure you tell your doctor if you have any other medical problems, especially:
- Arthritis or
- Heart or blood vessel disease or
- Infection or
- Itching (severe) or
- Kidney disease or
- Liver disease or
- Lung disease—The chance of serious side effects may be increased
- High blood pressure or
- Stomach ulcer—Methysergide can make your condition worse
Proper Use of methysergide
Take methysergide only as directed by your doctor. If the amount you are to take does not prevent your headaches from occurring as often as before, do not take more than your doctor ordered. Instead, check with your doctor. Taking too much of methysergide or taking it too frequently may cause serious effects such as nausea and vomiting; cold, painful hands or feet; or even gangrene.
If methysergide upsets your stomach, it may be taken with meals or milk. If stomach upset continues or is severe, check with your doctor.
The dose of methysergide will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of methysergide. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For oral dosage form (tablets):
- For preventing migraine and other throbbing headaches:
- Adults—2 milligrams (mg) (one tablet) two to four times a day.
- Children—Use is not recommended.
- For preventing migraine and other throbbing headaches:
If you miss a dose of methysergide, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Precautions While Using methysergide
If you have been taking methysergide regularly, do not stop taking it without first checking with your doctor. Your doctor may want you to reduce gradually the amount you are using before stopping completely. If you stop taking it suddenly, your headaches may return or worsen.
Your doctor will tell you how long you should take methysergide. Usually it is not taken for longer than 6 months at a time. If the doctor tells you to stop taking the medicine for a while, do not continue to take it. If your body does not get a rest from the medicine, it can have harmful effects.
methysergide may cause some people to become dizzy, lightheaded, drowsy, or less alert than they are normally. Even if taken at bedtime, it may cause some people to feel drowsy or less alert on arising. Make sure you know how you react to methysergide before you drive, use machines, or do anything else that could be dangerous if you are dizzy or are not alert .
If dizziness occurs, get up slowly after lying or sitting down. If the problem continues or gets worse, check with your doctor.
Since drinking alcoholic beverages may make headaches worse, it is best to avoid alcohol while you are suffering from them. If you have any questions about this, check with your doctor.
Since smoking may increase some of the harmful effects of methysergide, it is best to avoid smoking while you are using it. If you have any questions about this, check with your doctor.
methysergide may make you more sensitive to cold temperatures, especially if you have blood circulation problems. It tends to decrease blood circulation in the skin, fingers, and toes. Dress warmly during cold weather and be careful during prolonged exposure to cold, such as in winter sports. This is especially important for elderly people, who are more likely than younger adults to already have problems with their circulation.
Check with your doctor if a serious infection or illness of any kind occurs while you are taking methysergide, since an infection may make you more sensitive to the medicine's effects.
methysergide Side Effects
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:
- Chest pain or tightness in chest
- convulsions (seizures)
- difficult or painful urination
- dizziness (severe)
- fever or chills
- increase or decrease (large) in the amount of urine
- leg cramps
- pain in arms, legs, groin, lower back, or side
- pale or cold hands or feet
- shortness of breath or difficult breathing
- swelling of hands, ankles, feet, or lower legs
Check with your doctor as soon as possible if any of the following side effects occur:More common
- Abdominal or stomach pain
- numbness and tingling of fingers, toes, or face
- weakness in the legs
- Changes in vision
- clumsiness or unsteadiness
- cough or hoarseness
- excitement or difficulty in thinking
- fast or slow heartbeat
- feeling of being outside the body
- hallucinations (seeing, hearing, or feeling things that are not there)
- loss of appetite or weight loss
- mental depression
- raised red spots on skin
- redness or flushing of face
- skin rash
- unusual weight gain
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:More common
- dizziness or lightheadedness, especially when you get up from a lying or sitting position
- nausea or vomiting
- hair loss
- trouble in sleeping
After you stop using methysergide, your body may need time to adjust. The length of time this takes depends on the amount of medicine you were using and how long you used it. During this time check with your doctor if your headaches begin again or worsen.
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
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