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The pregnancy category of a medication is an assessment of the risk of fetal injury due to the pharmaceutical, if it is used as directed by the mother during pregnancy. It does not include any risks conferred by pharmaceutical agents or their metabolites in breast milk. Every drug has specific information listed in its product literature.
Topical nicotinamide and topical zinc are safe, however, there are no FDA pregnancy category ratings. [27] [28] Topical salicylic acid and topical dapsone are classified as FDA pregnancy category C. [23] [28] Acne medications to avoid during pregnancy include oral isotretinoin and topical tazarotene as there have been reports of birth defects.
Osteoporosis, including drug- and cancer-related osteoporosis, giant cell tumour of bone and hypercalcaemia of malignancies: Hypercholesterolaemia, cataract, urinary retention, hypocalcaemia, osteonecrosis of the jaw and anaphylaxis. Gemtuzumab ozogamicin: IV: CD33 antibody that induces apoptosis of the tagged cell. Acute myeloid leukaemia
US pregnancy category Indications Notable adverse effects Methotrexate [3] Antineoplastic & immunosuppressant: Mammalian DHFR +++ X: Malignancies (esp. haematologic malignancies and osteosarcoma), ectopic pregnancy and autoimmune conditions (esp. rheumatoid arthritis, psoriasis, Granulomatosis with polyangiitis, Goodpasture syndrome, etc.)
It is in pregnancy category X, meaning that it is known to result in negative outcomes for the fetus if taken during pregnancy. [11] In rare cases, uterine rupture may occur. [11] It is a prostaglandin analogue—specifically, a synthetic prostaglandin E 1 (PGE 1). [11] Misoprostol was developed in 1973. [20]
A few of the more common birth defects this drug can cause are hearing and visual impairment, missing or malformed earlobes, facial dysmorphism, and abnormalities in brain function. Isotretinoin is classified as FDA Pregnancy Category X and ADEC Category X, and use is contraindicated in pregnancy. [19]
Before 2015, tazarotene was considered a Category X drug (meaning its use was contraindicated during pregnancy) according to Food and Drug Administration (FDA) guidelines, despite demonstrating similar plasma retinoid levels as adapalene and tretinoin, which were classified as Category C drugs. [12]
Bicalutamide is pregnancy category X, or "contraindicated in pregnancy", in the U.S., [27] and pregnancy category D, the second most restricted rating, in Australia. [89] As such, it is contraindicated in women during pregnancy, and women who are sexually active and who can or may become pregnant are strongly recommended to take bicalutamide ...