Valstead
Valstead Uses, Dosage, Side Effects, Mechanism of Action, How Long Does it Take to Work? Valstead is a brand name. Its generic name is Valganciclovir.
Valstead
Valstead is an antiviral drug used for the treatment of certain infections caused by the herpes virus, such as cytomegalovirus (CMV). Valstead acts by inhibiting the replication of the virus in the body and helps to reduce the risk of complications of the infection.
Uses for
Valstead is used to treat infection caused by the cytomegalovirus (CMV), such as retinitis, a type of eye infection, and other CMV infections in people who are immunocompromised. Valstead is also used to prevent infection after bone marrow, kidney or liver transplantation.
Mechanism of action
Valstead works by stopping the replication of the virus in the body, by inhibiting the activity of a viral enzyme called DNA polymerase. This action helps to reduce the risk of complications associated with the infection.
How long does it take to work?
Valstead starts to work within a few days of taking the medication, but the full effects of the drug may not be seen until several weeks of treatment. The duration of treatment depends on the severity of the infection and the response to treatment.
Absorption
Valstead is rapidly absorbed from the gastrointestinal tract to reach peak plasma concentrations in about 4 hours. It is widely distributed throughout the body and is transported into the cells of the infected tissues.
Route of Elimination
Valstead is mainly eliminated via the urine. About 80% of the dose is excreted as the unchanged active form of the drug in the urine and the remaining is eliminated through faeces.
Dosage and Administration
Valstead is available as a tablet or as an oral suspension. The typical dose for adults is 900 mg taken two times daily or 450 mg taken three times daily. It should be taken with food or fluids to reduce the risk of stomach upset. The dosage may vary depending on the individual and the severity of the infection.
Side Effects
Common side effects of valganciclovir include nausea, vomiting, headaches, and diarrhea. Some of the more serious side effects include vision problems, pancreatitis, and Stevens Johnson Syndrome. It is important to talk to your doctor if you experience any of these side effects.
Toxicity
Valstead is not considered to be toxic at normal therapeutic doses. If large doses are taken, there is a risk of acute renal failure and severe electrolyte disturbances.
Precautions
Valstead should not be taken by individuals with severe renal impairment or by those who are pregnant or breastfeeding. It should also be avoided in people with a known hypersensitivity or an allergy to valganciclovir or one of its components. People who are taking other medications should also inform their doctor before taking valganciclovir.
Interactions
Valstead can interact with other medications, including anticonvulsants, some antibiotics, cardiac drugs, and other antiviral drugs. It is important to tell your doctor about all medications you are currently taking and to ask about potential side effects from taking them together.
Disease Interactions
Valstead can interact with a number of conditions, including liver or kidney disease, diabetes, and some forms of cancer. It is important to tell your doctor about all conditions you have to ensure safe and effective treatment.
Drug Interactions
Valstead can interact with other drugs, including anticonvulsants, some antibiotics, cardiac drugs, and other antiviral drugs. Be sure to tell your doctor about all medications you are currently taking and to ask about potential interactions.
Food Interactions
Valstead should be taken with food or fluids to reduce the risk of stomach upset. Taking it with food may also increase the absorption of the drug to ensure that it reaches a therapeutic level in the blood.
Pregnancy Use
Valstead is not recommended for use during pregnancy. It can cause birth defects in the developing baby. Women who are pregnant or planning to become pregnant should inform their doctor and they may be prescribed an alternative medication.
Lactation Use
Valstead is excreted in the breast milk and is not recommended for use by breastfeeding mothers as it can affect the baby's health. Mothers who are breastfeeding or planning to breastfeed should seek advise from their doctor and explore alternative treatments.
Acute Overdose
Overdose of valganciclovir is usually not fatal, but can cause serious side effects such as severe electrolyte disturbances and acute renal failure. Treatment for an overdose includes supportive care, such as administering intravenous fluids and supplementation with electrolytes.
Contraindication
Valstead is contraindicated in people with a known hypersensitivity or an allergy to valganciclovir or one of its components. It should also be avoided in individuals with severe renal impairment.
Use Direction
Valstead should be taken as prescribed by your doctor. It should be taken with food or fluids to reduce the risk of stomach upset. Do not exceed the recommended dose or duration of treatment, as this can increase the risk of side effects or reduce the effectiveness of the medication.
Storage Condition
Valstead should be stored at room temperature, away from light and moisture, and out of the reach of children.
Volume of Distribution
Valstead is widely distributed throughout the body and is transported into the cells of the infected tissue.
Half Life
The half-life of valganciclovir in the body is approximately 8 hours.
Clearance
Valstead is mainly eliminated via the urine, with about 80% of the dose excreted as unchanged active form of the drug. The remaining is eliminated through the faeces.
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