There is concern out there that patients are not receiving appropriate counseling before using the Mirena device.
Currently there is a FDA petition (click here: Mirena Awareness Petition) urging Bayer to publish more common side effects which are only listed in the physician information not the patient insert. This means that you depend on your doctor to be completely forthright with all of the information prior to usage (if you do not do your own research before hand).
The patient information for the device contains the following side effects only:
Pelvic Inflammatory Disease, infection, embedment, perforation, discomfort during placement, expulsion, missed menstrual periods, changes in bleeding, ovarian cysts.
The physician information for the device contains the following side effects:
abdominal/pelvic pain, vaginal discharge, nausea, headache, nervousness, vulvovaginitis, dysmerorrhea (cramps), back pain, weight increase, breast pain/tenderness, acne, decreased libido, depressed mood, cervicitis (vaginal infection), hypertension, migraine, vomiting, anemia, dyspareunia (painful intercourse), alopecia (hair loss), eczema, pruritus (itchiness), rash, urticaria (hives), abdominal distension, altered mood, hirsutism (abnormal hair growth), edema (swelling).
Although doctors are instructed by the manufacturer to disclose this information with the patent, they often do not. This is one example of why it is valuable to take the time to learn about medical procedures/interventions/drugs prior to use.
If you weren’t already aware, Mirena is a hormonal contraceptive device placed in a woman’s uterus. This T-shaped polyethylene frame contains a steroid reservoir which holds 52 mg of levonorgestrel. Exactly how it works is unknown. 
Levonorgestrel is released at a rate of approx. 20 mcg per day.
Interestingly, levonorgestrel is also categorized as a pesticide.
I suggest reviewing the information by evaluating the data on the Chemical Summary for Levonorgestrel implants from the PAN Pesticides Database.
Levnorgestrel holds the highest level of concern in Reproductive or Developmental Toxin category.
Per the State of
under the Safe Drinking Water and Toxic Enforcement Act (Proposition 65), Proposition 65 requires the Governor to publish, annually, a list of chemicals known to the state to cause cancer or reproductive toxicity. Lovnorgestrel was added to this list in was proposed to the list in 1986 and was confirmed in May 15th 1998. California
Levonorgestrel passes into breast milk and carries the potential to harm a nursing baby.
If you are nursing – opt for something else.
Common Side Effects
Info taken directly from Mirena website)
Pain, dizziness, bleeding or cramping may occur during placement. If these symptoms do not stop 30 minutes after placement, Mirena may not have been placed correctly.
Mirena may come out by itself. Symptoms of partial or complete expulsion may include bleeding, pain and an increase in menstrual flow.
About 2 out of 10 women stop having periods after 1 year of Mirena use.
Your period becoming irregular and bleeding and spotting between menstrual periods (or heavy bleeding during this time), periods may remain irregular. Pelvic and/or abdominal pain can occur.
A little over 1 out of 10 women using Mirena will develop a cyst on the ovary. Cysts can cause pain and may sometimes require surgery.
Between 5% and 10% of Mirena users may experience:
Heavy or prolonged menstrual bleeding
Less than 5% of Mirena users may experience:
Breast pain or tenderness
Inflammation of cervix, vulva or vagina
Pelvic pain during your period
Decreased sex drive
High blood pressure
Pain during intercourse
Unusual hair growth or loss
Skin irritations (such as hives, rash, eczema or itching)
Swelling of hands and/or feet
Long-term effects and congenital anomalies
Some observational data support a small increased risk of masculinization of the external genitalia of the female fetus following exposure to progestins at doses greater than those currently used for oral contraception. Whether these data apply to Mirena is unknown.
Women who currently have or have had breast cancer, or have a suspicion of breast cancer, should not use hormonal contraception because breast cancer is a hormone sensitive tumor...
Obviously every individual responds differently to medication. If you or a friend has Mirena and would like to submit a complaint online – click here.
 Pharmacists Coffee: Mirena. http://pcm.me/mirena/
 Drugs.com – Levonorgestrel. http://www.drugs.com/cdi/levonorgestrel.html#3tq8xwbxpsv5RdST.99
Drugs.com – Plan B http://www.drugs.com/pro/plan-b.html
 Office of Environmental Health Hazard Assessment of
. Proposition 65 http://oehha.ca.gov/prop65/out_of_date/598not.html California
 Offical Mirena Website: http://mirena-us.com/safety/index.jsp
 Drugs.com: Label Changes for Mirena. http://www.drugs.com/labeling-changes/July-2008/mirena-levonorgestrel-releasing-intrauterine-2010.html