Questions and Answers
What are the FDA pregnancy categories for drugs?
What is Category A used for?
Thyroid supplements, folic acids, potassium chloride
What defines Category B drugs?
Animal studies fail to demonstrate risk to fetus; well-controlled studies in pregnant women failed to show risks to fetus.
What are Category C drugs?
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What are Category D drugs associated with?
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What drugs are classified as Category X?
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What are Category C drugs used in dental care during pregnancy?
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What are Category B drugs in dental care during pregnancy?
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What are Category D drugs in dental care during pregnancy?
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What are Category X drugs in dental care during pregnancy?
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Which drugs are known to cause cleft lip in the fetus?
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Study Notes
FDA Pregnancy Drug Categories
- Drug classifications include categories A, B, C, D, and X, indicating levels of risk to the fetus during pregnancy.
Category A
- Drugs such as thyroid supplements (levothyroxine), folic acid, and potassium chloride have shown no risk to the fetus in any trimester.
Category B
- Examples include acetaminophen, penicillins, and erythromycin. Animal studies have not revealed fetal risks, and controlled studies in pregnant women have not shown risks.
Category C
- Drugs like epinephrine, aspirin, and prednisone may have adverse effects on fetuses in animal studies, but no human studies confirming risks exist. The potential benefits may justify use.
Category D
- Drugs such as Warfarin and tetracycline provide positive evidence of human fetal risk and thus require careful consideration before use.
Category X
- Drugs including triazolam and isotretinoin demonstrate known fetal abnormalities or present a confirmed risk to human fetuses.
Category C Drugs in Dental Care
- Mepivacaine, Bupivacaine, Epinephrine, along with NSAIDs and opioids are classified as Category C in dental settings during pregnancy.
Category B Drugs in Dental Care
- In dental care, Category B drugs include Lidocaine, NSAIDs, acetaminophen, along with antibiotics like penicillin and erythromycin.
Category D Drugs in Dental Care
- Drugs such as aspirin, tetracycline, and benzodiazepines (including diazepam and lorazepam) fall under Category D in dental practices during pregnancy.
Category X Drugs in Dental Care
- Benzodiazepines like temazepam are categorized as Category X and are contraindicated in dental care for pregnant patients.
Drugs Causing Cleft Lip
- Medications such as diazepam, temazepam, and alprazolam have been associated with the development of cleft lip in the fetus.
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Description
Test your knowledge on the FDA pregnancy drug categories through these flashcards. Learn about categories A, B, C, D, and X, including examples and definitions for each category. Perfect for students studying pharmacology and related fields.
