Common Microval Side Effects


The most commonly reported Microval side effects (click to view or check a box to report):

Unintended Pregnancy (4)
Caesarean Section (2)
Benign Intracranial Hypertension (2)
Foetal Heart Rate Disorder (1)
Foetal Growth Retardation (1)
Vaginal Haemorrhage (1)
Foetal Movements Decreased (1)
Blood Cholesterol Increased (1)
Pregnancy On Oral Contraceptive (1)
Retinal Vein Thrombosis (1)
Premature Labour (1)
Premature Baby (1)
International Normalised Ratio Increased (1)


If you or someone in your family has experienced a serious side effect to a health product, you are encouraged to report the experience to your health care professional (e.g. physician, pharmacist). You could also complete a copy of the side effect reporting form or report your side effect to FDA.

Microval Side Effects Reported to FDA



Microval Side Effect Report#5498551-4
Blood Cholesterol Increased, Unintended Pregnancy
This is a report of a 18-year-old female patient (weight: NA) from France, suffering from the following health symptoms/conditions: contraception, who was treated with Microval (dosage: NA, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Blood Cholesterol Increased, Unintended Pregnancy after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Microval treatment in female patients, resulting in Blood Cholesterol Increased side effect. The patient was hospitalized.
Microval Side Effect Report#5468732-4
Benign Intracranial Hypertension
This report suggests a potential Microval Benign Intracranial Hypertension side effect(s) that can have serious consequences. A 18-year-old female patient (weight: NA) from France was diagnosed with the following symptoms/conditions: contraception and used Microval (dosage: NA) starting
Dec 26, 2006. After starting Microval the patient began experiencing various side effects, including: Benign Intracranial HypertensionAdditional drugs used concurrently: NA.The patient was hospitalized. Although Microval demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Benign Intracranial Hypertension, may still occur.
Microval Side Effect Report#5366954-4
Unintended Pregnancy
This Unintended Pregnancy problem was reported by a health professional from France. A 33-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: contraception. On NS this consumer started treatment with Microval (dosage: NA). The following drugs were being taken at the same time:
  • Tracleer
When using Microval, the patient experienced the following unwanted symptoms/side effects: Unintended PregnancyAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Unintended Pregnancy, may become evident only after a product is in use by the general population.
Microval Side Effect Report#5363493-1
Unintended Pregnancy
This Unintended Pregnancy side effect was reported by a health professional from France. A 33-year-old female patient (weight:NA) experienced the following symptoms/conditions: contraception.The patient was prescribed Microval (drug dosage: NA), which was initiated on NS. Concurrently used drugs:
  • Tracleer
.After starting to take Microval the consumer reported adverse symptoms, such as: Unintended PregnancyThese side effects may potentially be related to Microval.
Microval Side Effect Report#5288507-9
Benign Intracranial Hypertension
This is a report of a 18-year-old female patient (weight: NA) from France, suffering from the following health symptoms/conditions: contraception, who was treated with Microval (dosage: NA, start time:
Dec 26, 2006), combined with: NA. and developed a serious reaction and side effect(s): Benign Intracranial Hypertension after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Microval treatment in female patients, resulting in Benign Intracranial Hypertension side effect. The patient was hospitalized.
Microval Side Effect Report#5192192-4
Caesarean Section, Pregnancy On Oral Contraceptive, Premature Baby
This report suggests a potential Microval (levonorgestrel, Tablet, 0) Caesarean Section side effect(s) that can have serious consequences. A 33-year-old female patient (weight: NA) from France was diagnosed with the following symptoms/conditions: contraception and used Microval (levonorgestrel, Tablet, 0) (dosage: Oral) starting NS. After starting Microval (levonorgestrel, Tablet, 0) the patient began experiencing various side effects, including: Caesarean Section, Pregnancy On Oral Contraceptive, Premature BabyAdditional drugs used concurrently:
  • Tracleer (125 Mg 2x Per 1 Day; Oral)
Although Microval (levonorgestrel, Tablet, 0) demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Caesarean Section, may still occur.
Microval Side Effect Report#5179097-X
Caesarean Section, Foetal Growth Retardation, Foetal Heart Rate Disorder, Foetal Movements Decreased, Premature Labour, Unintended Pregnancy
This Caesarean Section problem was reported by a consumer or non-health professional from France. A 33-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: contraception. On NS this consumer started treatment with Microval (levonorgestrel, Tablet, 0) (dosage: Oral). The following drugs were being taken at the same time:
  • Tracleer (125 Mg 2x Per 1 Day)
When using Microval (levonorgestrel, Tablet, 0), the patient experienced the following unwanted symptoms/side effects: Caesarean Section, Foetal Growth Retardation, Foetal Heart Rate Disorder, Foetal Movements Decreased, Premature Labour, Unintended PregnancyAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Caesarean Section, may become evident only after a product is in use by the general population.
Microval Side Effect Report#4898637-9
International Normalised Ratio Increased, Vaginal Haemorrhage
This International Normalised Ratio Increased side effect was reported by a consumer or non-health professional from United Kingdom. A 35-year-old female patient (weight:NA) experienced the following symptoms/conditions: post coital contraception.The patient was prescribed Microval (levonorgestrel, Tablet) (drug dosage: 2 Tablets, Oral), which was initiated on
Aug 19, 2005. Concurrently used drugs:
  • Seretide (salmeterol/fluticasone)
  • Subutex
  • Salbutamol (salbutamol)
  • Heroin (diamorphine)
.After starting to take Microval (levonorgestrel, Tablet) the consumer reported adverse symptoms, such as: International Normalised Ratio Increased, Vaginal HaemorrhageThese side effects may potentially be related to Microval (levonorgestrel, Tablet).
Microval Side Effect Report#4692274-7
Retinal Vein Thrombosis
This is a report of a 42-year-old female patient (weight: NA) from , suffering from the following health symptoms/conditions: oral contraception, who was treated with Microval (levonorgestrel, Tablet, 0) (dosage: Oral, start time:
Jan 01, 2001), combined with: NA. and developed a serious reaction and side effect(s): Retinal Vein Thrombosis after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Microval (levonorgestrel, Tablet, 0) treatment in female patients, resulting in Retinal Vein Thrombosis side effect.



The appearance of Microval on this list does not mean that FDA has concluded that the drug has the listed risk. It means that FDA has identified a potential safety issue, but it does not mean that FDA has found a causal relationship between the drug and the listed risk.

What are common Microval Side Effects for Men?

Men Side Effects Reports

Track Your Side Effects

Note Your Observations

It is really important to keep track of your health symptoms, right from the time you start a new medicine. You can do it any way you prefer: in a notebook, in a computer file or using our online tool. You should also note down any other medicines you are taking at the same time, because there could be an interaction between these medicines.

Why Your Notes are Important

Your notes could be helpful in several ways:

  • You can use them to remind you of details that may alert your health care professional(s) to a problem
  • You will have a record to refer to in the future, in case you are ever prescribed the same medicine again

  • Log Form

    You can use the following log form to write down important information, like the date and time you experienced a side effect and your symptoms, how strong the symptoms were, and any other medicines you were using.

    Medicine Name and Dosage:
    Side Effects Scale Date & Time Other Medicine(s) or Treatment(s)
    Scale: 1 = very mild to 10 = very bad

    Side effects reports are analyzed to discover potential health product safety signals. Some important reactions may take an extremely long time to develop or occur infrequently. Continued monitoring of adverse reactions is thus essential to maintain a comprehensive safety and effectiveness profile of health products.

    You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

    Microval reports list potential signals of serious risks and new safety information that were identified using the FDA Adverse Event Reporting System (FAERS).
    FAERS is a database that contains information on adverse event and medication errors reports submitted to FDA by healthcare professionals (such as physicians, pharmacists, nurses and others), consumers (such as patients, family members, layers and others) and manufacturers.

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    More About Microval

    Side Effects reported to FDA: 9

    Microval safety alerts: No

    Reported hospitalizations: 3

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