dolutegravir vs estradiol

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Side-by-side comparison of dolutegravir and estradiol. 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

In drug interaction trials, dolutegravir did not have a clinically relevant effect on the pharmacokinetics of the following drugs: tenofovir, methadone, midazolam, rilpivirine, and oral contraceptives containing norgestimate and ethinyl estradiol.

Drug Class
dolutegravir Integrase Strand Transfer Inhibitor
estradiol Estrogen Hormone
Type
dolutegravir Prescription
estradiol Prescription
Summary
dolutegravir

TRIUMEQ is a drug that contains three medicines in one pill: dolutegravir, abacavir, and lamivudine. It is used to treat HIV-1 infection in adults and children.

estradiol

Iclevia is a birth control pill. It contains two hormones, a progestin and an estrogen, that work together to prevent pregnancy.

What It Treats
dolutegravir

TRIUMEQ treats HIV-1, the virus that causes AIDS. It helps to lower the amount of virus in your body. This medication can help your body fight infection and can improve your health.

estradiol

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.

How It Works
dolutegravir

TRIUMEQ contains three drugs that each work differently to stop HIV from multiplying. Dolutegravir is an integrase strand transfer inhibitor (INSTI). Abacavir and lamivudine are nucleoside analogue reverse transcriptase inhibitors.

estradiol

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.

Common Side Effects
dolutegravir
  • Trouble sleeping (insomnia)
  • Headache
  • Feeling tired
estradiol
  • Headache
  • Heavy menstrual bleeding
  • Nausea
  • Painful periods
  • Acne
FAERS Reports
dolutegravir
  • Pain 1,425
  • Anxiety 1,051
  • Emotional Distress 1,048
  • Anhedonia 942
  • Chronic Kidney Disease 701
estradiol
  • Product Adhesion Issue 5,172
  • Headache 5,036
  • Nausea 4,754
  • Fatigue 4,511
  • Pain 3,480
Serious Warnings
dolutegravir

TRIUMEQ can cause serious allergic reactions. If you have a gene called HLA-B*5701, you are more likely to have an allergic reaction. You should be tested for this gene before taking TRIUMEQ. Symptoms can include fever, rash, nausea, vomiting, diarrhea, or stomach pain. Some people can also experience liver problems or a heart attack.

estradiol

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.

Pregnancy
dolutegravir

Tell your doctor if you are pregnant or plan to become pregnant. There is a pregnancy registry to monitor outcomes in people who take TRIUMEQ during pregnancy. Talk to your doctor about the risks and benefits of taking TRIUMEQ during pregnancy.

estradiol

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.

How to Read This dolutegravir vs estradiol Comparison

dolutegravir is classified in the Integrase Strand Transfer Inhibitor drug class, while estradiol sits within the Estrogen Hormone 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, dolutegravir has 5,167 submissions while estradiol has 22,953. 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 dolutegravir does not interfere with how the body uses birth control hormones like estradiol.. 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 dolutegravir or estradiol.

Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.