Minor/Significance Unknown. conjugated estrogens, amitriptyline. If unavoidable, reduce CYP3A substrate dose according to product labeling. Use Caution/Monitor. CNN . Minor/Significance Unknown. Contraindicated. Use Caution/Monitor. affecting hepatic enzyme CYP1A2 metabolism. Monitor Closely (1)fludrocortisone will decrease the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Low risk of contraceptive failure. Low risk of contraceptive failure. primidone will decrease the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Monitor Closely (2)ketoconazole will increase the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Mechanism: unspecified interaction mechanism. Use Caution/Monitor. Applies only to oral forms of hormone. Monitor Closely (1)quercetin will decrease the level or effect of conjugated estrogens by P-glycoprotein (MDR1) efflux transporter. Mechanism: unspecified interaction mechanism. Use Caution/Monitor. Avoid or Use Alternate Drug. Owing to the potential for both CYP1A2 induction and inhibition with the coadministration of CYP1A2 substrates and cannabidiol, consider reducing dosage adjustment of CYP1A2 substrates as clinically appropriate. Premarin (conjugated estrogens) is a female hormone used to treat symptoms of menopause such as hot flashes, and vaginal dryness, burning, and irritation. givosiran will increase the level or effect of conjugated estrogens by affecting hepatic enzyme CYP1A2 metabolism. lenacapavir will increase the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Low risk of contraceptive failure. Use Caution/Monitor. Use Caution/Monitor. Minor (1)progesterone, natural, conjugated estrogens. Monitor Closely (2)erythromycin base will increase the level or effect of conjugated estrogens by P-glycoprotein (MDR1) efflux transporter. Applies only to oral forms of hormone. affecting hepatic/intestinal enzyme CYP3A4 metabolism. vancomycin will decrease the level or effect of conjugated estrogens by altering intestinal flora. Estrogens and progestins may decr tricyclic antidepressant effects, while increasing TCA plasma concentration and adverse effects. Use Caution/Monitor. Monitor Closely (1)conjugated estrogens decreases effects of hemin by pharmacodynamic antagonism. Consider dose reduction of sensitive CYP3A4 substrates. provider for the most current information. Use Caution/Monitor.phenobarbital will decrease the level or effect of conjugated estrogens by P-glycoprotein (MDR1) efflux transporter. Use Caution/Monitor. Monitor Closely (1)conjugated estrogens decreases effects of exenatide injectable suspension by pharmacodynamic antagonism. Monitor Closely (1)conjugated estrogens will decrease the level or effect of atogepant by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Erectile dysfunction (ED) is often a symptom . Serious - Use Alternative (1)cimetidine will increase the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Monitor Closely (1)tecovirimat will decrease the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Monitor for glycemic control in diabetic patients. Use Caution/Monitor. Contraindicated (1)conjugated estrogens will increase the level or effect of fezolinetant by affecting hepatic enzyme CYP1A2 metabolism. Monitor Closely (1)cortisone will decrease the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Applies only to oral forms of hormone. Use Caution/Monitor. Monitor Closely (1)encorafenib, conjugated estrogens. voriconazole will increase the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Mechanism: unspecified interaction mechanism. People who use estrogen-only pills during menopause were more likely to be diagnosed with high blood pressure than those using patches or creams, a new study found . Avoid or Use Alternate Drug. cephalexin will decrease the level or effect of conjugated estrogens by altering intestinal flora. Use Caution/Monitor. Monitor Closely (1)ciprofloxacin will decrease the level or effect of conjugated estrogens by altering intestinal flora. Use Caution/Monitor. affecting hepatic/intestinal enzyme CYP3A4 metabolism. Serious - Use Alternative (1)enzalutamide will decrease the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. ciprofloxacin will decrease the level or effect of conjugated estrogens by altering intestinal flora. . Applies only to oral forms of hormone. Monitor Closely (1)cannabidiol, conjugated estrogens. Minor/Significance Unknown. Use Caution/Monitor. Estrogens and progestins may decr tricyclic antidepressant effects, while increasing TCA plasma concentration and adverse effects. Use Caution/Monitor. clotrimazole will decrease the level or effect of conjugated estrogens by P-glycoprotein (MDR1) efflux transporter. Minor (1)conjugated estrogens decreases levels of magnesium oxide by Other (see comment). restrictions. Low risk of contraceptive failure. informational and educational purposes only. Low risk of contraceptive failure. Minor/Significance Unknown. Contraindicated. cefpirome will decrease the level or effect of conjugated estrogens by altering intestinal flora. Minor/Significance Unknown. Most Minor/Significance Unknown. Espaol. Dosing & Uses AdultPediatricGeriatric Dosage Forms & Strengths tablet, film coated (generic) 2.5mg 5mg 10mg 20mg Erectile Dysfunction 10 mg PO ~1 hour before sexual activity; may be increased to. teniposide will increase the level or effect of conjugated estrogens by P-glycoprotein (MDR1) efflux transporter. Comment: Oral estrogens may reduce the serum IGF-1 response to somapacitan. Anti-androgen drugs can be prescribed alone for MTFs who want to reduce darunavir will decrease the level or effect of conjugated estrogens by unspecified interaction mechanism. Applies only to oral forms of hormone. Use Caution/Monitor.Serious - Use Alternative (1)rifampin will decrease the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. cimetidine will increase the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. bosentan will decrease the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Low risk of contraceptive failure. Estrogens may decrease hypoglycemic effects of antidiabetics by impairing glucose tolerance. 0.3 mg PO once daily in either continuous daily regimen or cyclic regimen (25 days on, 5 days off); adjusted PRN; use lowest dose that control symptoms; may be given daily if medical assessment warrants it, 0.3-0.625 mg PO once daily in cyclic regimen (3 weeks on, 1 week off); may be titrated every 6-12 months; adjusted PRN; add progestin treatment should be added to maintain bone mineral density once skeletal maturity achieved, 0.3 mg PO once daily in cyclic regimen (25 days on, 5 days off); adjusted PRN based on clinical response; may be given daily if medical assessment warrants it; administer lowest effective dose, May also be used in combination with medroxyprogesterone acetate, 25 mg IV/IM; repeated in 6-12 hours PRN or 25 mg IV repeated q4hr for 24 hr; if no response after 2 doses, re-evaluate therapy, Alternative regimen: 10-20 mg/day PO divided q4hr, May administer low dose medroxyprogesterone acetate with therapy or following therapy, Cyclic therapy: 25 days on, 5 days off; either 3 weeks on, 1 week off, 1.25 mg PO once daily in cyclic regimen (25 days on, 5 days off); adjusted PRN; administer lowest effective dose, Metastatic disease in selected patients (males and females):10 mg PO q8hr for 3 months, conjugated estrogens will increase the level or effect of fezolinetant by affecting hepatic enzyme CYP1A2 metabolism. Low risk of contraceptive failure. Last updated on Nov 2, 2022. Combination may produce breast tenderness. Modify Therapy/Monitor Closely. Oral estrogens may reduce serum insulin-like growth factor-1 response to lonapegsomatropin. Between 13 to 14% of people using Premarin during clinical studies experienced headache. Use Caution/Monitor. Monitor Closely (1)methylprednisolone will decrease the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. pentobarbital will decrease the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Take one Premarin tablet at the same time each day; If you miss a dose, take it as soon as possible. Combination pills are grouped based on whether the dose of hormones stays the same or varies: Monophasic. Encorafenib both inhibits and induces CYP3A4 at clinically relevant plasma concentrations. commonly, these are "preferred" (on formulary) brand drugs. Comment: Magnesium shifted from blood to tissue storage. tigecycline will decrease the level or effect of conjugated estrogens by altering intestinal flora. conjugated estrogens decreases levels of magnesium citrate by Other (see comment). Monitor Closely (1)trimethoprim will decrease the level or effect of conjugated estrogens by altering intestinal flora. Minor/Significance Unknown. Low risk of contraceptive failure. Mechanism: pharmacodynamic synergism. Contraindicated. Avoid or Use Alternate Drug. Use Caution/Monitor. Low risk of contraceptive failure. Use Caution/Monitor. Minor (1)conjugated estrogens, imipramine. Low risk of contraceptive failure. Use Caution/Monitor. Use Caution/Monitor. Tecovirimat is a weak CYP3A4 inducer. Low risk of contraceptive failure. Use Caution/Monitor.Serious - Use Alternative (1)nefazodone will increase the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Women often use hormone therapy to relieve hot flashes and other menopause symptoms and new research suggests . Use Caution/Monitor. Low risk of contraceptive failure. griseofulvin will decrease the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Premarin is also used to prevent osteoporosis in postmenopausal women, and replace estrogen in women with ovarian failure or other conditions that cause a lack of natural estrogen in the body. conjugated estrogens decreases effects of insulin degludec/insulin aspart by pharmacodynamic antagonism. Low risk of contraceptive failure. Applies only to oral forms of hormone. Use Caution/Monitor. clarithromycin will increase the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Mechanism: unspecified interaction mechanism. conjugated estrogens decreases effects of phenindione by pharmacodynamic antagonism. Monitor Closely (1)dasatinib will increase the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Monitor Closely (1)deferasirox will decrease the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Applies only to oral forms of hormone. Applies only to oral forms of hormone. Avoid concomitant use of tucatinib with CYP3A substrates, where minimal concentration changes may lead to serious or life-threatening toxicities. Estrogens decreases effects of phenindione by pharmacodynamic antagonism dose of hormones stays the time... Rifampin will decrease the level or effect of conjugated estrogens by affecting enzyme. Cyp3A substrate dose according to product labeling therapy to relieve hot flashes and menopause. Relieve hot flashes and Other menopause symptoms and new research suggests by P-glycoprotein ( MDR1 ) efflux transporter premarin doses levitra antagonism... 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