Demser should be taken exactly as prescribed by your healthcare provider. Here are some general guidelines:
- Oral Tablets: Demser is typically taken two to four times a day with food or milk to reduce the risk of stomach upset. Swallow the tablets whole—do not crush or chew them.
- Consistent Use: It is important to take Demser consistently and at the same times each day to help maintain even levels of the medication in your body.
- Missed Dose: If you miss a dose, take it as soon as you remember unless it is almost time for your next dose. In that case, skip the missed dose—do not double the dose to make up for a missed one.
- Monitor Blood Pressure: Regularly monitor your blood pressure as instructed by your doctor, especially during the initial stages of treatment. If you experience any signs of low blood pressure (e.g., dizziness, fainting), contact your healthcare provider.
Demser works by inhibiting the enzyme tyrosine hydroxylase, which is responsible for the production of catecholamines from the amino acid tyrosine. Catecholamines like adrenaline and norepinephrine are produced by the adrenal glands and are involved in the body’s stress response. When these chemicals are produced in excess, as is often the case in pheochromocytoma, they can lead to dangerously high blood pressure and other symptoms.
By blocking the production of these chemicals, Demser helps to reduce the symptoms of pheochromocytoma, including high blood pressure, heart palpitations, and excessive sweating. The reduction in catecholamine production can help control these symptoms before surgery or as part of long-term management.
Like any medication, Demser can cause side effects, although not everyone will experience them. Some of the common and more serious side effects include:
- Drowsiness: Demser can cause drowsiness or tiredness, especially when first starting the medication or when the dosage is adjusted.
- Dry Mouth: Some people may experience dry mouth while taking Demser, which can be uncomfortable.
- Dizziness or Lightheadedness: As Demser can lower blood pressure, it may cause dizziness or lightheadedness, particularly when standing up quickly.
- Nausea and Vomiting: Some individuals may experience gastrointestinal symptoms such as nausea or vomiting, especially if the medication is taken on an empty stomach.
- Fatigue: Demser can cause fatigue, which may interfere with daily activities.
- Depression: Though less common, some individuals may experience mood changes, including symptoms of depression, while on Demser. It is important to report any mood changes to your doctor.
- Severe Reactions: In rare cases, Demser may cause more severe reactions such as an allergic reaction, which could involve rash, itching, or swelling. Seek medical attention immediately if you experience any signs of a serious allergic reaction.
If you experience any side effects that persist or worsen, contact your healthcare provider.
Before starting Demser, consider these important warnings:
- Low Blood Pressure: If you have a history of low blood pressure, your doctor may adjust your dosage or monitor you more closely while taking Demser. This medication can cause blood pressure to drop, which may lead to dizziness or fainting.
- Kidney or Liver Disease: People with kidney or liver problems may need dosage adjustments, as these organs process the medication.
- Pregnancy and Breastfeeding: Demser is classified as a Category C medication for pregnancy, meaning it should only be used during pregnancy if absolutely necessary. It is not known whether Demser passes into breast milk, so it should be used with caution in breastfeeding mothers.
- Mental Health: Individuals with a history of depression or other mental health conditions should use Demser cautiously, as it may contribute to mood changes.
The recommended dosage of Demser varies depending on the individual and the condition being treated:
- For Pheochromocytoma: The typical starting dose is 250 mg taken two to four times a day. Your doctor will adjust the dosage depending on your response and how well your blood pressure is controlled.
- For Surgery Preparation: Demser is usually started several days before surgery to help control blood pressure and reduce surgical risks. The dosage may be adjusted based on your response.
Always follow your healthcare provider’s instructions and never adjust your dosage without consulting them.
Demser is a prescription medication and should only be used under the supervision of a healthcare provider. Since it is used to treat a serious medical condition (pheochromocytoma) and requires careful dosage adjustments, it is important to follow your doctor’s instructions and attend follow-up appointments to monitor your treatment progress.