stuff Arsh probably should memorize but won't Flashcards
Provide drugs that can be used for urinary incontinence.
- Treatment
- Medications – oxybutynin (muscarinic (M3) antagonist → treats OAB), tolteridine (muscarinic (M3) antagonist → treats OAB), flavoxate (anticholinergic → relax smooth muscles), imipramine (beta agonist → treats OAB)
What are the two treatments for bacterial vaginosis?
- For each, provide MOA, SOA, SE
- Tx (both cause NVD)
- Metronidazole (po, topical)
- MOA: inhibits nucleic acid synthesis → disrupts bacterial DNA → bacteriostatic
- SOA: anaerobes, protozoa, and microaerophilic bacteria
- SE: disulfiram reaction (no alcohol), metallic taste, CYP2C9 inhibitor (increases warfarin levels)
- Clindamycin (topical)
- MOA: binds 50s rRNA → inhibits translocation → bactericidal
- SOA: gram positive bacteria and anaerobes
- SE: pseudomembranous colitis (C. Diff)
- Metronidazole (po, topical)
SERMS
- MOA?
- 2 examples?
- SE?
- SERMs – competitive inhibitors of estrogen binding to estrogen receptors on tumor tissue
- i.e. Tamoxifen, Raloxifene
- SE: hot flashes, endometrial hyperplasia/cancer, DVT, cataracts (due to agonist effects)
Aromatase inhibitor
- MOA?
- SE?
- Aromatase inhibitors – blocks conversion of androgens to estrogen
- SE: decreased bone density, joint pains, vaginal atrophy, hyperlipidemia
Trastuzamab
- MOA?
- SE?
- Trastuzumab (Herceptin) – MAB that binds to the extracellular domain of HER2 → inhibiting HER1 and HER2 dimerization → blocking cellular proliferation and angiogenesis
- SE: LV dysfunction → CHF, hypersensitivity, pulmonary toxicity
what are the functions of the following Placental peptide hormones
Leptin, neuropeptide Y, inhibin & activan
- Leptin: anti-obesity hormone normally secreted by adipocytes → decreased food intake
- Neuropeptide Y: secreted from cytotrophoblasts → increase in CRH release
- Inhibin and Activin:
- Inhibin: secreted by ovarian granulosa cells → ceases possibility of ovulation
define the following
threatened, inevitable, incomplete, complete, missed abortion
how to treat missed abortion
- Threatened abortion (miscarriage): bleeding in first trimester without loss of fluid or tissue
- Inevitable abortion (miscarriage): bleeding or rupture of membranes in the presence of cervical dilatation (>2 cm – can put speculum in cervix)
- Incomplete abortion (miscarriage): documented pregnancy where passage of some blood and some tissue occurs, but some products of conception remain within the uterus
- Complete abortion (miscarriage): documented pregnancy that ends with the spontaneous passage of all of the products of conception
- Missed abortion (miscarriage): the retention of a failed intrauterine pregnancy with a gestational age less than 28 weeks, for 8 weeks or more
- Expectant Tx, Dilation and curettage, and misoprostol (painful)
what are the FDA drug classifications
FAS
patho? abnormalities?
- Pathogenesis: failure of cell migration during gestation
- Congenital abnormalities: growth restriction, facial abnormalities (shortened palpebral tissues, low-set ears, midfacial hypoplasia, smooth philtrum, and thin upper lip) and CNS dysfunction (microcephaly, mental retardation, and ADD)
Leading cause of low birth weight, pre-term labor, placental problems, IUGR, SIDS
Nicotine (vasoconstriction) and CO (impaired O2 delivery)
Associated with low birth weight, pre-term birth, IUGR, and placental abruption
Cocaine (vasoconstriction)
Most common teratogen that causes birth defects, intellectual disability, fetal alcohol syndrome (FAS)***
Alcohol
- Exposure to less than 5 rads is not associated with fetal anomalies
If exposed to more leads to microcephaly and intellectual disability
Radiation
Associated with irreversible arthroapthies and cartilage erosion
Aminoglycosides
Associated with yellow-brown discoloration of teeth and inhibited bone growth
Tetracycline
Ototoxicity
Aminoglycosides
Avoid near delivery as they are associated with hyperbilirubinemia
Sulfa drugs
Often used in pregnancy, but is associated with hemolytic anemia in G6PD deficiency
Nitrofurantoin
Avoid near delivery as they are associated with thrombocytopenia, bleeding, and electrolyte disturbances
Thiazide diuretics
Associated with fetal growth restriction, neonatal hypoglycemia, possible transient hypotension
Beta blockers
Renal damage → polyhydramnios (growth restriction, limb contractures, abnormal skull/calvarium development)
ACEi/ARBs
Only SSRI with an increased risk of ventral/atrial septal cardiac defects
Paroxetine (SSRI)
Avoid use late in pregnancy as it is associated with neonatal behavioral syndrome (increased muscle tone, irritability, jitteriness, & respiratory distress)
SSRIs
Associated with Ebstein anomaly (apical displacement of the tricuspid valve → atrialization of the RV)
Lithium (depression med)
Associated with spina bifida/neural tube defects with exposure during embryogenesis → Tx: folate supplements before sex
Valproic acid and carbamazepine
Associated with abnormal facies, cleft lip/palate, microcephaly, growth deficiency, and hypoplasia of nails/DIPs
Phenytoin
Severe fetal malformation → contraception is mandatory with use
Isotretinoin (acne med) /VitA
- Methotrexate is used in ectopic pregnancy
Contraindicated in normal pregnancy due to neural tube defects
Methotrexate/ Trimethoprim (folate antagonists)
- Easily crosses the placenta
Contraindicated in first trimester as it is associated with bone deformities, fetal abnormalities, abortion, ophthalmologic abnormalities
Warfarin
Long-term use usually avoided as it can be associated with ductus arteriosus constriction → pulmonary HTN
NSAIDS
Associated with aplasia cutis congenita (absence of skin à hole in head)
Methimazole (hyperthyroidism med)
Associated with flipper limb defects
Thalidomide
Can result in caudal regression syndrome, congenital heart defects, macrosomia, and neonatal hypoglycemia
Diabetes
Associated with absence of digits and other anomalies
Alkylating agents (cancer drug)
Associated with vaginal clear cell carcinoma and congenital Müllerian anomalies
Diethylstilbestrol (DES)
Associated with congenital goiter or hypothyroidism (causes cretinism: stunted physical/mental growth)
Iodine (lack/excess)
explain the following drugs
oxytocin, misoprostol, mehtylergonovine, prostaglandin F2/E2
MOA? SE? and contraindiactions