estradiol vs tolterodine
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Side-by-side comparison of estradiol and tolterodine. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
minor Known Drug Interaction
7.3 Other Interactions No clinically relevant interactions have been observed when tolterodine was co-administered with warfarin, with a combined oral contraceptive drug containing ethinyl estradiol and levonorgestrel, or with diuretics [see Clinical Pharmacology (12.3) ] . Oral Contraceptives Tolterodine immediate release 4 mg (2 mg bid) had no effect on the pharmacokinetics of an oral contraceptive (ethinyl estradiol 30 µg/levonorgestrel 150 µg) as evidenced by the monitoring of ethinyl estradiol and levonorgestrel over a 2-month period in healthy female volunteers.
Estrace, Vivelle-Dot
Detrol
Iclevia is a birth control pill. It contains two hormones, a progestin and an estrogen, that work together to prevent pregnancy.
Tolterodine extended-release capsules help control an overactive bladder. It reduces the feeling of needing to go to the bathroom often.
Iclevia is used by women who can get pregnant to prevent pregnancy. It contains two types of hormones. These hormones stop you from releasing an egg and also change the lining of your uterus, which prevents pregnancy.
This medicine treats overactive bladder. It helps reduce leaking urine, the strong need to urinate, and frequent urination. These symptoms are also known as urge urinary incontinence, urgency, and frequency.
Iclevia contains two hormones: levonorgestrel (a progestin) and ethinyl estradiol (an estrogen). These hormones prevent pregnancy by stopping ovulation (the release of an egg from the ovary). They also change the lining of the uterus to prevent a fertilized egg from implanting.
Tolterodine belongs to a class of drugs called antimuscarinics. It works by blocking certain nerve signals to the bladder. This helps to relax the bladder muscles and reduce the urge to urinate.
- • Headache
- • Heavy menstrual bleeding
- • Nausea
- • Painful periods
- • Acne
- • Dry mouth
- • Headache
- • Constipation
- • Abdominal pain
- Product Adhesion Issue 5,172
- Headache 5,036
- Nausea 4,754
- Fatigue 4,511
- Pain 3,480
- Fall 408
- Fatigue 406
- Dizziness 309
- Diarrhoea 308
- Nausea 308
Cigarette smoking increases your risk of serious heart problems from birth control pills. This risk is higher if you are over 35 and smoke more cigarettes. You should not take Iclevia if you are over 35 and smoke.
Anaphylaxis and angioedema (severe allergic reactions) have happened with this drug. These reactions can cause difficulty breathing and require emergency treatment. Use caution if you have bladder problems, gastrointestinal issues, or glaucoma. This medicine can cause sleepiness, so be careful driving or operating heavy machinery.
Do not use Iclevia if you are pregnant. If you become pregnant while taking Iclevia, stop taking it right away. Iclevia can reduce milk production, so you may want to use a different birth control method while breastfeeding.
It is not known if tolterodine is safe to use during pregnancy. Talk to your doctor if you are pregnant or plan to become pregnant. It is also not known if tolterodine passes into breast milk. Talk to your doctor about the best way to feed your baby if you are taking this medicine.
Also Compare, Nearby Drugs
Compare tolterodine with
How to Read This estradiol vs tolterodine Comparison
estradiol is classified in the Estrogen Hormone drug class, while tolterodine sits within the Anticholinergic (Overactive Bladder) class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, estradiol has 22,953 submissions while tolterodine has 1,739. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to tolterodine does not interfere with how birth control medications work or change the amount of hormone in your body.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for estradiol or tolterodine.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.