Viread (generic name tenofovir disoproxil fumarate tablets) is not usually recommended for pregnancy, and should be used as directed by your doctor. Tenofovir disoproxil fumarate tablets have anti-HIV and anti-Hepatitis B virus properties and are suitable for use in combination with other antiretroviral drugs for the treatment of HIV-1 infection or alone for the treatment of chronic hepatitis B in adults and pediatric patients over 12 years of age. The drug should be contraindicated in patients with prior hypersensitivity to any of the components of this drug. Common adverse reactions to the drug include mild to moderate gastrointestinal discomfort (e.g., diarrhea, nausea, vomiting, etc.), and dizziness. Tenofovir disoproxil fumarate tablets are generally not recommended for women who are pregnant because there have been no adequate and well-controlled studies in pregnant women to clarify the effects of the drug in pregnant women. Specific use of this drug should be under the supervision of a medical specialist and should not be used without authorization.