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Compare Famvir  vs Valtrex
Uses of Famvir |
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| | Famvir is also known by the generic name Famciclovir
USES:
Famciclovir is used to treat infections caused by certain types of viruses. It treats shingles caused by herpes zoster. It also treats outbreaks of herpes simplex that cause cold sores around the mouth, sores around the anus, and genital herpes. In people with frequent outbreaks of genital herpes, famciclovir is used to help reduce the number of future episodes.
Famciclovir is an antiviral drug. However, it is not a cure for these infections. The viruses that cause these infections continue to live in the body even between outbreaks. Famciclovir decreases the severity and length of these outbreaks. It helps the sores heal faster, keeps new sores from forming, and decreases pain/itching. This medication may also help reduce how long pain remains after the sores heal. In addition, in people with a weakened immune system, famciclovir can decrease the risk of the virus spreading to other parts of the body and causing serious infections.
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Uses of Valtrex |
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| | Valtrex is also known by the generic name Valacyclovir
USES:
Valacyclovir is used in children to treat cold sores (herpes labialis) and chickenpox (varicella zoster). It is used in adults to treat cold sores and shingles (herpes zoster). Valacyclovir does not cure these diseases, but it may decrease pain and help sores heal faster. Valacyclovir belongs to a class of medications known as antivirals.
Valacyclovir is also used to treat people with genital herpes who are currently having an outbreak. It can also be used to prevent an outbreak (suppressive therapy). This medication helps control symptoms, but does not cure the disease or prevent infection of sexual partners.
If you are taking valacyclovir for treatment of genital herpes, it is important to follow safe sex practices to lower the chance of giving herpes to your partner, even if there are no symptoms present. Always use a condom made of latex or polyurethane. When you have symptoms or are experiencing an outbreak, do not have sexual contact with your partner.
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Famvir and Valtrex Have 3 Life Threatening (Major) Side Effects in Common |
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| | Critical Seriousness - Erythema Multiforme is a Life Threatening Side Effect of both Famvir and Valtrex. Critical Seriousness - Decreased Blood Platelets - Thrombocytopenic Disorder is a Life Threatening Side Effect of both Famvir and Valtrex. Critical Seriousness - Decreased Neutrophils a Type of White Blood Cell - Neutropenic Disorder is a Life Threatening Side Effect of both Famvir and Valtrex. |
Famvir Has 10 Life Threatening (Major) Side Effects Not Found in Valtrex |
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| | Critical Seriousness - Stevens-Johnson Syndrome is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Hallucination - Hallucinations is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Abnormal Liver Function Tests - Abnormal Hepatic Function Tests is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Decreased White Blood Cells - Leukopenia is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Confused - Impaired Cognition is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - High Amount of Bilirubin in the Blood - Hyperbilirubinemia is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Toxic Epidermal Necrolysis is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Yellowing of Skin or Eyes from Liver Problems - Jaundice is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Yellowing of Skin or Eyes from Bile Flow Problems - Obstructive Hyperbilirubinemia is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Rash - Skin Rash is a Life Threatening Side Effect of Famvir but not Valtrex. |
Valtrex Has 10 Life Threatening (Major) Side Effects Not Found in Famvir |
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| | Critical Seriousness - Trouble Breathing - Dyspnea is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Life Threatening Allergic Reaction - Anaphylaxis is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Any Disorder of the Brain - Encephalopathy is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Coma is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Seizures - Seizure Disorder is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - High Blood Pressure - Hypertension is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Giant Hives - Angioedema is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Hives - Urticaria is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Kidney Failure - Renal Failure is a Life Threatening Side Effect of Famvir but not Valtrex. Critical Seriousness - Painful Periods - Dysmenorrhea is a Life Threatening Side Effect of Famvir but not Valtrex. |
Famvir and Valtrex Have 2 Most Frequently Occurring Side Effects in Common |
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| | Head Pain - Headache Disorder is a Frequently Occurring Side Effect of both Famvir and Valtrex. Feel Like Throwing Up - Nausea is a Frequently Occurring Side Effect of both Famvir and Valtrex. |
Famvir Has 0 Most Frequently Occurring Side Effects Not Found in Valtrex |
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Valtrex Has 0 Most Frequently Occurring Side Effects Not Found in Valtrex |
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Famvir and Valtrex Treat 10 Conditions in Common |
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| | Recurrent Genital Herpes - Recurrent Herpes Genitalis is treated by both Famvir and Valtrex. Shingles - Herpes Zoster is treated by both Famvir and Valtrex. Suppression of Recurrent Herpes Simplex Infection in HIV is treated by both Famvir and Valtrex. Prevent Shingles in Patients Without a Normal Immune System - Prevention of Herpes Zoster in Immunocompromised Patient is treated by both Famvir and Valtrex. Genital Herpes - Herpes Genitalis is treated by both Famvir and Valtrex. Cold Sore - Herpes Labialis is treated by both Famvir and Valtrex. Prevent Recurrent Herpes Simplex Infection - Suppression of Recurrent Herpes Simplex Infection is treated by both Famvir and Valtrex. |
Famvir has 1 Condition Contraindications |
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| | If you have any of these Conditions then you should carefully evaluate the risks of taking Famvir.
Famvir Oral Contraindications
(grouped by decreasing seriousness level)
Contraindication Warnings 
Renal Disease - Kidney Disease is a contraindication of Famvir. |
Valtrex has 4 Condition Contraindications |
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| | If you have any of these Conditions then you should carefully evaluate the risks of taking Valtrex.
Valtrex Oral Contraindications
(grouped by decreasing seriouosness level)
Absolute Contraindications
Hemolytic Uremic Syndrome - Syndrome characterized by Anemia and Renal Failure is a contraindication of Valtrex.
Thrombotic Thrombocytopenic Purpura is a contraindication of Valtrex.
Relative Contraindications
Dehydration - Extreme Loss of Body Water is a contraindication of Valtrex.
Renal Disease with Moderate to Severe Function Impairment - Moderate to Severe Kidney Impairment is a contraindication of Valtrex. |
Famvir - Symptoms of overdose may include
If overdose is suspected, contact your poison control center or emergency room immediately. US residents can call the US National Poison Hotline at 1-800-222-1222. Canada residents can call a provincial poison control center.
Valtrex - Symptoms of overdose may include
change in the amount of urine, sluggishness, loss of consciousness, seizures.
Contact poison control
If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US national poison hotline at 1-800-222-1222. Canadian residents should call their local poison control center directly.
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