peg-VI-soe-mant
Commonly used brand name(s)
In the U.S.
- Somavert
Available Dosage Forms:
- Powder for Solution
Therapeutic Class: Endocrine-Metabolic Agent
Pharmacologic Class: Growth Hormone Receptor Antagonist
Uses For pegvisomant
Pegvisomant is used to treat a condition called acromegaly, which is caused by too much growth hormone in the body, in patients who cannot be treated with surgery or radiation. Too much growth hormone produced in adults causes the hands, feet, and parts of the face to become large, thick, and bulky. Other problems such as arthritis also can develop. Pegvisomant works by binding to the growth hormone receptor and preventing the actions of too much growth hormone .
pegvisomant is available only with your doctor's prescription.
Before Using pegvisomant
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 pegvisomant, the following should be considered:
Allergies
Tell your doctor if you have ever had any unusual or allergic reaction to pegvisomant 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.
Pediatric
Appropriate studies have not been performed on the relationship of age to the effects of pegvisomant in the pediatric population. Safety and efficacy have not been established .
Geriatric
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of pegvisomant in the elderly. However, elderly patients are more likely to have age-related heart, liver, or kidney problems which may require an adjustment of dose in patients receiving pegvisomant .
Pregnancy
| Pregnancy Category | Explanation | |
|---|---|---|
| All Trimesters | B | Animal studies have revealed no evidence of harm to the fetus, however, there are no adequate studies in pregnant women OR animal studies have shown an adverse effect, but adequate studies in pregnant women have failed to demonstrate a risk to the fetus. |
Breast Feeding
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
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking pegvisomant, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using pegvisomant 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.
- Octreotide
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 pegvisomant. Make sure you tell your doctor if you have any other medical problems, especially:
- Diabetes—Use with caution. May cause changes in the blood sugar .
- Kidney disease or
- Liver disease, or a history of—Use with caution. The effects may be increased because of slower removal of the medicine from the body .
- Tumors that produce growth hormone—Use with caution. May increase risks for more serious side effects .
Proper Use of pegvisomant
pegvisomant is given as a shot under your skin. Pegvisomant may sometimes be given at home to patients who do not need to be in the hospital. If you are using pegvisomant at home, your doctor will teach you how to prepare and inject the medicine. Be sure that you understand exactly how the medicine is prepared and injected .
You will be shown the body areas where this shot can be given. Use a different body area each time you give yourself a shot. Keep track of where you give each shot to make sure you rotate body areas. This will help prevent skin problems from the injections. Do not inject on an area that has a rash, bruise, lump, or a broken skin .
Dosing
The dose of pegvisomant 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 pegvisomant. 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 injection dosage form:
- For treating acromegaly:
- Adults—At first, 40 milligrams (mg) will be injected under your skin by your doctor. Then, you will inject the next doses of 10 milligrams (mg) once a day under your skin . Higher doses may be needed, as determined by your doctor.
- Children—Use and dose must be determined by your doctor .
- For treating acromegaly:
Missed Dose
If you miss a dose of pegvisomant, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Storage
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Store unopened vials of pegvisomant in the refrigerator. Do not freeze. Store the medicine that has been mixed at room temperature and use it within 6 hours. Throw away any mixed medicine that has not been used within this time. Do not freeze the solution .
Throw away used needles in a hard, closed container that the needles cannot poke through. Keep this container away from children and pets .
Precautions While Using pegvisomant
It is very important that your doctor check your progress at regular visits to make sure that pegvisomant is working properly. Blood tests may be needed to check for unwanted effects .
Liver problems may occur while you are using pegvisomant. Stop using pegvisomant and check with your doctor right away if you are having more than one of these symptoms: abdominal pain or tenderness; clay-colored stools; dark urine; decreased appetite; fever; headache; itching; loss of appetite; nausea and vomiting; skin rash; swelling of the feet or lower legs; unusual tiredness or weakness; or yellow eyes or skin .
The cover of the vials of pegvisomant contains latex, which may cause allergic reactions in people who are sensitive to latex. Tell your doctor if you have a latex allergy before you start using pegvisomant .
Make sure your doctor knows if you are using pegvisomant before taking any tests. pegvisomant may affect the results of some medical tests (e.g., liver tests), especially if you also use other medicines to treat acromegaly (e.g., octreotide, Sandostatin®) .
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements .
pegvisomant 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:
More common
- Bleeding, blistering, burning, coldness, or discoloration of skin at site of injection
- bloating or swelling of face, arms, hands, lower legs, or feet
- blurred vision
- chest pain
- chills
- cough
- dizziness
- feeling of pressure
- fever
- headache
- hives
- hoarseness
- infection, inflammation, itching, or lump at site of injection
- nervousness
- lower back or side pain
- painful or difficult urination
- pounding in the ears
- rapid weight gain
- slow or fast heartbeat
- tingling of hands or feet
- unusual weight gain or loss
- Thickening of the skin
- Abdominal pain or tenderness
- clay colored stools
- dark urine
- decreased appetite
- fever
- itching
- loss of appetite
- nausea and vomiting
- skin rash
- unusual tiredness or weakness
- yellow eyes or skin
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
- Accidental injury
- burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
- diarrhea
- general feeling of discomfort or illness
- joint pain
- muscle aches and pains
- pain
- pain or tenderness around eyes and cheekbones
- runny or stuffy nose
- shivering
- shortness of breath or troubled breathing
- sore throat
- sweating
- tightness of chest or wheezing
- trouble sleeping
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.
See also: pegvisomant Subcutaneous side effects (in more detail)
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More pegvisomant Subcutaneous resources
- Pegvisomant Subcutaneous Side Effects (in more detail)
- Pegvisomant Subcutaneous Use in Pregnancy & Breastfeeding
- Pegvisomant Subcutaneous Drug Interactions
- Pegvisomant Subcutaneous Support Group
- 1 Review for Pegvisomant Subcutaneous - Add your own review/rating
Compare pegvisomant Subcutaneous with other medications
- Acromegaly
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