Typhim Vi
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Questions & Answers
Side Effects & Adverse Reactions
Allergic reactions have been reported rarely in the post-marketing experience (see ADVERSE REACTIONS section).
The safety and immunogenicity of Typhim Vi vaccine in children under two years of age has not been established. As with other polysaccharide vaccines, the antibody response may be inadequate. The decision whether to vaccinate children under 2 years of age depends upon the risk incurred by the child on the basis of the epidemiological context.
Typhim Vi vaccine provides protection against the risk of infection related to Salmonella typhi, but gives no protection against Salmonella paratyphi A or B, non-S typhi species of Salmonella enterica serovar Typhi, or other bacteria that cause enteric disease.
If the vaccine is used in persons deficient in producing antibodies, whether due to genetic defect, immunodeficiency disease, or immunosuppressive therapy, the expected immune response may not be obtained. This includes patients with asymptomatic or symptomatic HIV-infection, severe combined immunodeficiency, hypogammaglobulinemia, or agammaglobulinemia; altered immune states due to diseases such as leukemia, lymphoma, or generalized malignancy; or an immune system compromised by treatment with corticosteroids, alkylating drugs, antimetabolites or radiation. (16)
As with any vaccine, vaccination with Typhim Vi vaccine may not protect 100% of individuals.
Legal Issues
There is currently no legal information available for this drug.
FDA Safety Alerts
There are currently no FDA safety alerts available for this drug.
Manufacturer Warnings
There is currently no manufacturer warning information available for this drug.
FDA Labeling Changes
There are currently no FDA labeling changes available for this drug.
Uses
Typhim Vi vaccine is indicated for active immunization for the prevention of typhoid fever caused by S typhi and is approved for use in persons two years of age or older.
Immunization with Typhim Vi vaccine should occur at least two weeks prior to expected exposure to S typhi.
Typhim Vi vaccine is not indicated for routine immunization of individuals in the United States (US). (14)
Selective immunization against typhoid fever is recommended under the following circumstances: 1) travelers to areas where a recognized risk of exposure to typhoid exists, particularly ones who will have prolonged exposure to potentially contaminated food and water, 2) persons with intimate exposure (ie, continued household contact) to a documented typhoid carrier, and 3) workers in microbiology laboratories who frequently work with S typhi. (14)
Typhoid vaccination is not required for international travel, but is recommended for travelers to such areas as Africa, Asia, and Central and South America where there is a recognized risk of exposure to S typhi. Current CDC advisories should be consulted with regard to specific locales. Vaccination is particularly recommended for travelers who will have prolonged exposure to potentially contaminated food and water. However, even travelers who have been vaccinated should use caution in selecting food and water. (15)
There is no evidence to support the use of typhoid vaccine to control common source outbreaks, disease following natural disaster or in persons attending rural summer camps. (14)
An optimal reimmunization schedule has not been established. Reimmunization every two years under conditions of repeated or continued exposure to the S typhi organism is recommended at this time.
For recommended primary immunization and reimmunization see DOSAGE AND ADMINISTRATION section.
Typhim Vi vaccine should not be used to treat a patient with typhoid fever or a chronic typhoid carrier.
History
There is currently no drug history available for this drug.
Other Information
Typhim Vi®, Typhoid Vi Polysaccharide Vaccine, produced by Sanofi Pasteur SA, for intramuscular use, is a sterile solution containing the cell surface Vi polysaccharide extracted from Salmonella enterica serovar Typhi, S typhi Ty2 strain. The organism is grown in a semi-synthetic medium. Casein derived raw materials are used early in manufacturing during the fermentation process. The capsular polysaccharide is precipitated from the concentrated culture supernatant by the addition of hexadecyltrimethylammonium bromide, and the product is purified by differential centrifugation and precipitation. Each 0.5 mL dose may contain residual amounts of formaldehyde (not more than 100 mcg) used for the inactivation of the bacterial culture. The potency of the purified polysaccharide is assessed by molecular size and O-acetyl content. Phenol, 0.25%, is added as a preservative. The vaccine contains residual polydimethylsiloxane or fatty-acid ester-based antifoam. The vaccine is a clear, colorless solution. Each dose of 0.5 mL is formulated to contain 25 mcg of purified Vi polysaccharide in a colorless isotonic phosphate buffered saline (pH 7 ± 0.3), 4.150 mg of Sodium Chloride, 0.065 mg of Disodium Phosphate, 0.023 mg of Monosodium Phosphate, and 0.5 mL of Sterile Water for Injection.
Sources
Typhim Vi Manufacturers
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Sanofi Pasteur Inc.
![Typhim Vi (Salmonella Typhi Ty2 Vi Polysaccharide Antigen) Injection, Solution [Sanofi Pasteur Inc.]](/wp-content/themes/bootstrap/assets/img/loading2.gif)
Typhim Vi | Sanofi Pasteur Inc.
Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. The syringe or vial and its packaging should also be inspected prior to use for evidence of leakage, premature activation of the plunger, or a faulty tip seal. If any of these conditions exists, the vaccine should not be administered.
For intramuscular use only. Do NOT inject intravenously.
The immunizing dose for adults and children is a single injection of 0.5 mL. The dose for adults is typically given intramuscularly in the deltoid, and the dose for children is given IM either in the deltoid or the anterolateral thigh. The vaccine should not be injected into the gluteal area or areas where there may be a nerve trunk.
A reimmunizing dose is 0.5 mL. Reimmunization consisting of a single dose for US travelers every two years under conditions of repeated or continued exposure to the S typhi organism is recommended at this time. (14)
The syringe is intended for single use only, must not be reused, and must be disposed of properly and promptly following its use.
The skin at the site of injection first should be cleansed and disinfected. Tear off upper seal of vial cap. Cleanse top of rubber stopper of the vial with a suitable antiseptic and wipe away all excess antiseptic before withdrawing vaccine.
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