Yaz Side Effects

If you are interested in learning about Yaz side effects, please take the time to read the information provided on our website.  Serious adverse reactions are associated with the use of Yaz. In clinical trials designed to study the effectiveness of Yaz for contraception and acne treatment, the most common side effects were headache/migraine, menstrual irregularities, nausea/vomiting, breast pain/tenderness, and changes in mood. In the trials designed to study premenstrual dysphoric disorder (PMDD), the most common side effects include those just listed, as well as fatigue, irritability, decreased libido and weight gain. However, recent information has been published that shows women taking Yaz or Yasmin were 74% more likely to suffer blood clots than women on other low-estrogen contraceptives.  These studies have sparked a series of Yaz lawsuits nationwide.

If you have suffered from any of the side effects listed below,

call our law firm today to discuss your potential Yaz lawsuit

with one of our lawyers.

Following the approval and marketing of Yaz, the following side effects have also been observed:

Heart, lungs and blood vessels

  • Blood clots
  • Stroke
  • Heart attack
  • High blood pressure

 Liver and gallbladder

  • Gallbladder disease
  • Disturbances in liver function
  • Liver tumors

Immune system

  • Allergic reactions

Metabolism and nutrition

  • High blood potassium
  • High triglycerides
  • Changes in blood glucose tolerance and insulin resistance
  • Diabetes mellitus

Skin and other tissue disorders

  • Cholasma (brown discoloration of the face)
  • Angioedema (swelling, similar to hives, beneath the skin)
  • Erythema nodosum (painful red nodules under the skin)
  • Erythema multiforme (skin disorder due to allergic reaction)


  • Inflammatory bowel disease

Musculoskeletal and connective tissue disorders

  • Lupus


Yaz should not be taken by anyone who smokes and is over the age of 35, as smoking increases the risk of serious side effects, some of which can be life-threatening. These side effects include blood clots, stroke and heart attack. A woman’s risk of these side effects increases with increasing age and with the number of cigarettes smoked. The risk of blood clots is the highest during the first year in which Yaz is used, as well as when restarting Yaz (or a different birth control pill) after a break of at least four weeks.

In addition, women who have kidney, liver or adrenal disease should also not take Yaz as it can cause serious heart and other health problems. Women who have previously had blood clots, cancers of the breast, ovary or uterus, or who have a history of heart attack or stroke should also not take Yaz.

YAZ contains a hormone called drospirenone that for some women may increase potassium to an unsafe level in the blood. Women who are treated daily for a long-term chronic health condition using any of the following medications should contact their healthcare provider and have a blood test to check potassium levels during the first month of using Yaz:

  •  NSAIDs – ibuprofen (Motrin®, Advil®), naproxen (Aleve®)
  • Certain diuretics, including sprionolactone
  • Potassium supplements
  • ACE inhibitors (Capoten®, Vasotec®, Zestril®, and others)
  • Angiotensin-II receptor antagonists (Cozaar®, Diovan®, Avapro®, and others)
  • Aldosterone antagonists
  • Heparin