fluoxetine vs nifedipine

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Side-by-side comparison of fluoxetine and nifedipine. 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

CYP3A inhibitors such as fluconazole, itraconazole, clarithromycin, erythromycin, nefazodone, fluoxetine, saquinavir, indinavir, and nelfinavir may result in increased exposure to nifedipine when co-administered.

Drug Class
fluoxetine Selective Serotonin Reuptake Inhibitor (SSRI)
nifedipine Calcium Channel Blocker
Type
fluoxetine Prescription
nifedipine Prescription
Summary
fluoxetine

Fluoxetine is a medicine that can help treat depression and other mental health conditions. It belongs to a class of drugs called selective serotonin reuptake inhibitors (SSRIs).

nifedipine

Nifedipine is a calcium channel blocker. It helps to relax blood vessels, which can lower blood pressure and reduce chest pain.

What It Treats
fluoxetine

Fluoxetine can treat major depressive disorder in adults and children. It also treats obsessive-compulsive disorder (OCD) in adults and children. Fluoxetine can help with bulimia nervosa (an eating disorder) and panic disorder. Sometimes, it is used with another medicine called olanzapine to treat depression related to bipolar disorder.

nifedipine

This medicine treats chest pain (angina) caused by tight blood vessels. It also treats high blood pressure. Lowering blood pressure reduces the risk of strokes and heart attacks.

How It Works
fluoxetine

Fluoxetine works by increasing the amount of serotonin in your brain. Serotonin is a chemical that helps regulate mood. By increasing serotonin, fluoxetine can help improve mood and reduce symptoms of depression, OCD, and other conditions.

nifedipine

Nifedipine blocks calcium from entering heart and blood vessel cells. This relaxes and widens blood vessels. As a result, the heart doesn't have to work as hard, and blood pressure goes down.

Common Side Effects
fluoxetine
  • Abnormal dreams
  • Problems ejaculating
  • Loss of appetite
  • Feeling anxious
  • Feeling weak
nifedipine
  • Swelling, especially in the legs or ankles
  • Headache
  • Fatigue
  • Dizziness
  • Constipation
FAERS Reports
fluoxetine
  • Drug Interaction 3,335
  • Toxicity To Various Agents 3,316
  • Nausea 3,233
  • Fatigue 3,156
  • Completed Suicide 2,904
nifedipine
  • Dyspnoea 2,429
  • Fatigue 2,304
  • Diarrhoea 2,264
  • Nausea 2,220
  • Headache 1,997
Serious Warnings
fluoxetine

Antidepressants may increase the risk of suicidal thoughts and behaviors in children, teenagers, and young adults. Watch closely for worsening depression or suicidal thoughts. Tell your doctor right away if you notice any changes in mood or behavior. Fluoxetine is not approved for use in children younger than 7 years old.

nifedipine

In rare cases, nifedipine can cause serious gastrointestinal problems, including obstruction. If you experience severe abdominal pain, vomiting, or inability to pass stool, seek immediate medical attention.

Pregnancy
fluoxetine

Talk to your doctor if you are pregnant or plan to become pregnant. Fluoxetine should only be used during pregnancy if the benefit outweighs the risk to the baby. Breastfeeding is not recommended while taking fluoxetine.

nifedipine

Tell your doctor if you are pregnant or plan to become pregnant. It is not known if nifedipine will harm your unborn baby. Talk to your doctor about the risks and benefits of taking this medicine while pregnant or breastfeeding.

Also Compare, Nearby Drugs

How to Read This fluoxetine vs nifedipine Comparison

fluoxetine is classified in the Selective Serotonin Reuptake Inhibitor (SSRI) drug class, while nifedipine sits within the Calcium Channel Blocker 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, fluoxetine has 15,944 submissions while nifedipine has 11,214. 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 fluoxetine slows down the process that removes nifedipine from your body, which can lead to higher drug levels.. 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 fluoxetine or nifedipine.

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