Viral Hepatitis Pharmacology Flashcards
What is Entecavir indicated for?
Tx of chronic HBV in adults and children at least 2 years old
What are the black box warnings for Entecavir?
1) Severe acute exacerbations of hepatitis B
2) Patients co-infected with HIV and HBV
3) Lactic acidosis
4) Hepatomegaly
What is Tenofovir Disoproxil indicated for?
1) Tx of chronic HBV in adults and pediatric patients 12 years of age and older
2) Tx of HIV-1 infection in adults and pediatric patients 2 yo and older
What are the black box warnings for Tenofovir Disoproxil?
1) Lactic acidosis
2) Severe hepatomegaly with steatosis
3) Post treatment exacerbation of hepatitis
What are some warnings and precautions associated with Tenofovir Disoproxil?
Acute renal failure and Fanconi syndrome
What is Adefovir Dipivoxil indicated for?
Tx chronic HBV in patients 12 yo and up
What are some warnings and precautions associated with Adefovir Dipivoxil?
Nephrotoxicity
What adverse reaction is seen with Adefovir Dipivoxil in pre and post transplantation lamivudine-resistant liver disease patients?
Increased creatinine
Coadministration of Adefovir Dipivoxil with what other types of drugs may increase serum concentrations of adefovir or the coadministered drug?
Drugs that reduce renal function or compete for active tubular secretion
What is lamivudine indicated for?
Tx of HIV-1/HBV co-infection
What are the black box warnings for Lamivudine?
1) Lactic acidosis
2) Severe hepatomegaly
3) Exacerbations of hepatitis B
What are some warnings and precautions associated with Lamivudine?
1) HBV resistant variants
2) Pancreatitis
What is Telbivudine indicated for?
Tx chronic HBV in adults
What are the black box warnings for Telbivudine?
1) Lactic acidosis
2) Severe hepatomegaly with steatosis
3) Exacerbations of hepatitis B
What contraindication does Telbivudine have?
What does it increase the risk of?
1) Combination therapy with PEG interferon alfa-2a
2) Peripheral neuropathy
What is PEG interferon alfa-2a indicated for?
Tx of chronic HCV and HBV
What are the black box warnings for PEG interferon alfa-2a?
Ribavirin associated effects
What is PEG interferon alfa-2a contraindicated for?
1) Autoimmune hepatitis
2) Patients with cirrhosis
3) Use in neonates/infant