PRECAUTIONS
General
Care is to be taken by the health-care provider for the safe and effective
use of Tetanus Toxoid Adsorbed vaccine.
EPINEPHRINE INJECTION (1:1000) MUST BE IMMEDIATELY AVAILABLE SHOULD AN ACUTE
ANAPHYLACTIC REACTION OCCUR DUE TO ANY COMPONENT OF THE VACCINE.
There is an increased incidence of local and systemic reactions to booster
doses of tetanus toxoid when given to previously immunized persons. (Refer to
DOSAGE AND ADMINISTRATION section for timing of booster injections.)
Prior to an injection of any vaccine, all known precautions should be taken
to prevent adverse reactions. This should include a review of the patient's
history with respect to possible sensitivity and any previous adverse reactions
(see CONTRAINDICATIONS section) to the vaccine or similar vaccines and
to possible sensitivity to dry natural latex rubber, and a current knowledge
of the literature concerning the use of the vaccine under consideration.
Special care should be taken to ensure that the injection does not enter a blood vessel.
Immunosuppressive therapies including radiation, corticosteroids, antimetabolites,
alkylating agents, and cytotoxic drugs may reduce the immune response to vaccines.
Therefore, routine vaccination should be deferred, if possible, while patients
are receiving such therapy.1 If Tetanus Toxoid Adsorbed vaccine has
been administered to persons receiving immunosuppressive therapy, or having
an immunodeficiency disorder, an adequate antibody response may not be obtained.1
When possible, immunosuppressive treatment should be interrupted when immunization
is required due to a tetanus-prone wound.
Administration of Tetanus Toxoid Adsorbed vaccine is not contraindicated in
individuals with HIV infection.7
It is advisable to use DT (For Pediatric Use – under 7 years of age) or Td
(For Adult Use – 7 years of age and older) in wound prophylaxis instead of tetanus
toxoid alone in order to maintain adequate levels of diphtheria immunity.1
A separate, sterile syringe and needle or a sterile disposable unit must be
used for each patient to prevent transmission of hepatitis or other infectious
agents from person to person. Needles should not be recapped and should be disposed
of according to biohazard waste guidelines.
Carcinogenesis, Mutagenesis, Impairment of Fertility
No studies have been performed to evaluate carcinogenicity, mutagenic potential, or impact on fertility.
Pregnancy
Reproductive Studies – Pregnancy Category C
Animal reproduction studies have not been conducted with Tetanus Toxoid Adsorbed
vaccine. It is also not known whether Tetanus Toxoid Adsorbed vaccine can cause
fetal harm when administered to a pregnant woman or can affect reproduction
capacity. Tetanus Toxoid Adsorbed vaccine should be given to a pregnant woman
only if clearly needed.
Adequate immunization by routine boosters in non-pregnant women of child-bearing
age can obviate the need to vaccinate women during pregnancy (see DOSAGE
AND ADMINISTRATION section).
Physicians generally avoid prescribing unnecessary drugs and biologics for pregnant women.
However, the ACIP recommends the following: A previously unvaccinated
pregnant woman whose child might be born under unhygienic circumstances (without
sterile technique) should receive two doses of Td 4 to 8 weeks apart before
delivery, preferably during the last two trimesters. Pregnant women in similar
circumstances who have not had a complete vaccination series should complete
the three-dose series. Those vaccinated more than 10 years previously should
have a booster dose. No evidence exists to indicate that tetanus and diphtheria
toxoids administered during pregnancy are teratogenic.1
It has been reported that tetanus toxoid administered to pregnant women prevents
neonatal tetanus in newborns.11,12 However, the data reported on
the safety of tetanus toxoid when so used is inconclusive because the incidence
of neonatal deaths in New Guinea was significantly higher than in the United
States.11 A prospective study in the United States has not been done
to confirm these reports.
Pediatric Use
SAFETY AND EFFECTIVENESS OF TETANUS TOXOID ADSORBED VACCINE IN INFANTS BELOW
THE AGE OF SIX WEEKS HAVE NOT BEEN ESTABLISHED. HOWEVER, THIS VACCINE IS NOT
INDICATED FOR CHILDREN UNDER 7 YEARS OF AGE.
Tetanus Toxoid Adsorbed vaccine is suitable for tetanus immunization in the
pediatric age group. However, for children under 7 years of age DT (For Pediatric
Use) is preferred to tetanus toxoid alone if the pertussis component is contraindicated.
For children 7 years of age and older, Td (For Adult Use) is preferred to tetanus
toxoid alone.1
REFERENCES
1. Recommendations of the Immunization Practices Advisory Committee
(ACIP). Diphtheria, Tetanus, and Pertussis: Recommendations for vaccine use
and other preventive measures. MMWR 40: No. RR-10, 1991
6. Stratton KR, et al. Adverse events associated with childhood vaccines.
Evidence Bearing on Causality. National Academy Press, Washington, DC, 1994
7. ACIP. General recommendations on immunization. MMWR 38: 205-227, 1989
11. MacLennan R, et al. Immunization against neonatal tetanus in New Guinea.
Antitoxin response of pregnant women to adjuvant and plain toxoids. Bull WHO
32: 683-697, 1965
12. Newell KW, et al. The use of toxoid for the prevention of tetanus neonatorium.
Bull WHO 35: 863-871, 1966