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Loestrin Side Effects

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Common Loestrin Side Effects


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

Pulmonary Embolism (59)
Nausea (41)
Metrorrhagia (37)
Headache (29)
Anxiety (28)
Pain (26)
Amenorrhoea (25)
Deep Vein Thrombosis (22)
Vomiting (22)
Oedema Peripheral (19)
Depression (19)
Cholelithiasis (18)
Thrombosis (17)
Cholecystitis Chronic (17)
Chest Pain (16)
Abdominal Pain (16)
Dizziness (15)
Cerebrovascular Accident (14)
Diarrhoea (12)
Abdominal Pain Upper (12)

➢ More



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.

Loestrin Side Effects Reported to FDA



Loestrin Side Effect Report#9969612
Pulmonary Embolism
This is a report of a 15-year-old female patient (weight: NA) from US, suffering from the following health symptoms/conditions: menorrhagia, who was treated with Loestrin Fe 1.5/30 (dosage: 1 Tab, Qd, Oral, start time:
Jan 16, 2014), combined with:
  • Naproxen
  • Vitamin D3
and developed a serious reaction and side effect(s): Pulmonary Embolism after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Loestrin Fe 1.5/30 treatment in female patients, resulting in Pulmonary Embolism side effect. The patient was hospitalized.
Loestrin Side Effect Report#9733402
Rash, Product Substitution Issue
This report suggests a potential Loestrin 1.5/30 21 Day Rash side effect(s) that can have serious consequences. A 22-year-old female patient (weight: NA) from US was diagnosed with the following symptoms/conditions: contraception and used Loestrin 1.5/30 21 Day (dosage: NA) starting
Sep 26, 2013. After starting Loestrin 1.5/30 21 Day the patient began experiencing various side effects, including: Rash, Product Substitution IssueAdditional drugs used concurrently: NA. Although Loestrin 1.5/30 21 Day demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Rash, may still occur.
Loestrin Side Effect Report#9693348
Gastrointestinal Haemorrhage, Gastric Ulcer, Gastrointestinal Inflammation
This Gastrointestinal Haemorrhage problem was reported by a consumer or non-health professional from US. A 28-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On 2012 this consumer started treatment with Loestrin 24 Fe (dosage: NA). The following drugs were being taken at the same time:
  • Amoxicillin (amoxicillin)
  • Xanax (alprazolam)
When using Loestrin 24 Fe, the patient experienced the following unwanted symptoms/side effects: Gastrointestinal Haemorrhage, Gastric Ulcer, Gastrointestinal InflammationThe patient was hospitalized.Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Gastrointestinal Haemorrhage, may become evident only after a product is in use by the general population.
Loestrin Side Effect Report#9665701
Chest Pain, Pyrexia, Painful Respiration, No Therapeutic Response
This Chest Pain side effect was reported by a pharmacist from US. A 46-year-old female patient (weight:NA) experienced the following symptoms/conditions: uterine haemorrhage.The patient was prescribed Loestrin (drug dosage: NA), which was initiated on
Sep 16, 2013. Concurrently used drugs:
  • Clonazepam
  • Simvastatin
  • Ambien
  • Lisinopril
.After starting to take Loestrin the consumer reported adverse symptoms, such as: Chest Pain, Pyrexia, Painful Respiration, No Therapeutic ResponseThese side effects may potentially be related to Loestrin. The patient was hospitalized.
Loestrin Side Effect Report#9625751
Abdominal Pain, Feeling Hot, Colitis Ischaemic
This is a report of a 33-year-old female patient (weight: NA) from US, suffering from the following health symptoms/conditions: contraception, who was treated with Loestrin 24 Fe (dosage: 1 Pill, start time:
Jun 01, 2011), combined with: NA. and developed a serious reaction and side effect(s): Abdominal Pain, Feeling Hot, Colitis Ischaemic after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Loestrin 24 Fe treatment in female patients, resulting in Abdominal Pain side effect. The patient was hospitalized.
Loestrin Side Effect Report#9549241
Pulmonary Embolism
This report suggests a potential Loestrin 24 Fe Pulmonary Embolism side effect(s) that can have serious consequences. A 16-year-old female patient (weight: NA) from US was diagnosed with the following symptoms/conditions: polycystic ovaries and used Loestrin 24 Fe (dosage: 1 Pill) starting
Sep 03, 2011. After starting Loestrin 24 Fe the patient began experiencing various side effects, including: Pulmonary EmbolismAdditional drugs used concurrently: NA.The patient was hospitalized. Although Loestrin 24 Fe demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Pulmonary Embolism, may still occur.
Loestrin Side Effect Report#9531182
Pulmonary Embolism
This Pulmonary Embolism problem was reported by a health professional from US. A 31-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: contraception. On 201203 this consumer started treatment with Loestrin 24 Fe (dosage: NA). The following drugs were being taken at the same time:
  • Novolin (insulin Human, Insulin Human Injection, Isophane)
  • Calcium (calcium)
  • Fish Oil (fish Oil)
  • Multivitamin /00831701/(vitamins Nos)
When using Loestrin 24 Fe, the patient experienced the following unwanted symptoms/side effects: Pulmonary EmbolismThe patient was hospitalized.Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Pulmonary Embolism, may become evident only after a product is in use by the general population.
Loestrin Side Effect Report#9531142
Thrombosis
This Thrombosis side effect was reported by a health professional from US. A 15-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Loestrin 24 Fe (drug dosage: NA), which was initiated on NS. Concurrently used drugs: NA..After starting to take Loestrin 24 Fe the consumer reported adverse symptoms, such as: ThrombosisThese side effects may potentially be related to Loestrin 24 Fe.
Loestrin Side Effect Report#9531123
Jugular Vein Thrombosis, Headache, Vomiting, Mental Status Changes, Somnolence, Aphasia, Brain Oedema
This is a report of a 13-year-old female patient (weight: NA) from US, suffering from the following health symptoms/conditions: dysfunctional uterine bleeding,autoimmune thrombocytopenia, who was treated with Loestrin 24 Fe (dosage: NA, start time: NS), combined with:
  • Immunoglobulin (Over 4 Hours)
  • Iron
  • Glucose
and developed a serious reaction and side effect(s): Jugular Vein Thrombosis, Headache, Vomiting, Mental Status Changes, Somnolence, Aphasia, Brain Oedema after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Loestrin 24 Fe treatment in female patients, resulting in Jugular Vein Thrombosis side effect. The patient was hospitalized.
Loestrin Side Effect Report#9531114
Deep Vein Thrombosis, Pain
This report suggests a potential Loestrin 24 Fe Deep Vein Thrombosis side effect(s) that can have serious consequences. A 27-year-old female patient (weight: NA) from US was diagnosed with the following symptoms/conditions: NA and used Loestrin 24 Fe (dosage: NA) starting 201201. After starting Loestrin 24 Fe the patient began experiencing various side effects, including: Deep Vein Thrombosis, PainAdditional drugs used concurrently: NA. Although Loestrin 24 Fe demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Deep Vein Thrombosis, may still occur.
Loestrin Side Effect Report#9531101
Cerebrovascular Accident, Migraine, Intervertebral Disc Injury, Asthenia, Abasia, Loss Of Consciousness, Dizziness, Vision Blurred, Pain In Extremity
This Cerebrovascular Accident problem was reported by a consumer or non-health professional from US. A 30-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: contraception. On 201107 this consumer started treatment with Loestrin 24 Fe (dosage: NA). The following drugs were being taken at the same time: NA. When using Loestrin 24 Fe, the patient experienced the following unwanted symptoms/side effects: Cerebrovascular Accident, Migraine, Intervertebral Disc Injury, Asthenia, Abasia, Loss Of Consciousness, Dizziness, Vision Blurred, Pain In ExtremityThe patient was hospitalized.Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Cerebrovascular Accident, may become evident only after a product is in use by the general population.
Loestrin Side Effect Report#9531079
Speech Disorder, Transient Ischaemic Attack, Hemiplegia, Cerebrovascular Accident
This Speech Disorder side effect was reported by a consumer or non-health professional from US. A 22-year-old female patient (weight:NA) experienced the following symptoms/conditions: contraception.The patient was prescribed Loestrin 24 Fe (drug dosage: NA), which was initiated on
May 21, 2009. Concurrently used drugs: NA..After starting to take Loestrin 24 Fe the consumer reported adverse symptoms, such as: Speech Disorder, Transient Ischaemic Attack, Hemiplegia, Cerebrovascular AccidentThese side effects may potentially be related to Loestrin 24 Fe. The patient was hospitalized.
Loestrin Side Effect Report#9397448
Metrorrhagia
This is a report of a 18-year-old female patient (weight: NA) from US, suffering from the following health symptoms/conditions: contraception, who was treated with Loestrin Fe 1/20 (dosage: NA, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Metrorrhagia after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Loestrin Fe 1/20 treatment in female patients, resulting in Metrorrhagia side effect.
Loestrin Side Effect Report#9286287
Pulmonary Embolism
This report suggests a potential Loestrin 24 Fe Pulmonary Embolism side effect(s) that can have serious consequences. A 31-year-old female patient (weight: NA) from US was diagnosed with the following symptoms/conditions: contraception and used Loestrin 24 Fe (dosage: Daily For 24 Days) starting
Mar 01, 2012. After starting Loestrin 24 Fe the patient began experiencing various side effects, including: Pulmonary EmbolismAdditional drugs used concurrently: NA.The patient was hospitalized. Although Loestrin 24 Fe demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Pulmonary Embolism, may still occur.
Loestrin Side Effect Report#9192185
Abdominal Pain, Vomiting, Diarrhoea, Gallbladder Disorder, Irritable Bowel Syndrome, Quality Of Life Decreased, Fatigue, Lethargy, Cholecystectomy
This Abdominal Pain problem was reported by a health professional from US. A 25-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: contraception. On
Jan 01, 2010 this consumer started treatment with Loestrin 24 Fe (dosage: NA). The following drugs were being taken at the same time: NA. When using Loestrin 24 Fe, the patient experienced the following unwanted symptoms/side effects: Abdominal Pain, Vomiting, Diarrhoea, Gallbladder Disorder, Irritable Bowel Syndrome, Quality Of Life Decreased, Fatigue, Lethargy, CholecystectomyThe patient was hospitalized and became disabled.Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Abdominal Pain, may become evident only after a product is in use by the general population.
Loestrin Side Effect Report#9148783
Pulmonary Embolism
This Pulmonary Embolism side effect was reported by a consumer or non-health professional from US. A 31-year-old female patient (weight:NA) experienced the following symptoms/conditions: contraception.The patient was prescribed Loestrin (drug dosage: 1 Daily Po), which was initiated on
Sep 15, 2012. Concurrently used drugs: NA..After starting to take Loestrin the consumer reported adverse symptoms, such as: Pulmonary EmbolismThese side effects may potentially be related to Loestrin. The patient was hospitalized.
Loestrin Side Effect Report#8947846
Ketoacidosis, Metrorrhagia
This is a report of a 18-year-old female patient (weight: NA) from US, suffering from the following health symptoms/conditions: NA, who was treated with Loestrin 24 Fe (dosage: 1000/20ug?, start time: 2012), combined with: NA. and developed a serious reaction and side effect(s): Ketoacidosis, Metrorrhagia after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Loestrin 24 Fe treatment in female patients, resulting in Ketoacidosis side effect. The patient was hospitalized.
Loestrin Side Effect Report#8906378
Blood Glucose Increased, Anxiety, Headache, Glycosylated Haemoglobin Increased
This report suggests a potential Loestrin Blood Glucose Increased side effect(s) that can have serious consequences. A 33-year-old female patient (weight: NA) from US was diagnosed with the following symptoms/conditions: birth control and used Loestrin (dosage: 1mg/10mg/10mcg 1 A Day Oral) starting
Aug 10, 2012. After starting Loestrin the patient began experiencing various side effects, including: Blood Glucose Increased, Anxiety, Headache, Glycosylated Haemoglobin IncreasedAdditional drugs used concurrently: NA. Although Loestrin demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Blood Glucose Increased, may still occur.
Loestrin Side Effect Report#8889394
Embolic Stroke, Pneumonia, Unresponsive To Stimuli
This Embolic Stroke problem was reported by a health professional from US. A 40-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: contraception,premenstrual syndrome,menstrual cycle management. On
Apr 18, 2011 this consumer started treatment with Loestrin Fe (dosage: NA). The following drugs were being taken at the same time: NA. When using Loestrin Fe, the patient experienced the following unwanted symptoms/side effects: Embolic Stroke, Pneumonia, Unresponsive To StimuliThe patient was hospitalized and became disabled.Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Embolic Stroke, may become evident only after a product is in use by the general population.
Loestrin Side Effect Report#8839414
Pulmonary Embolism
This Pulmonary Embolism side effect was reported by a pharmacist from US. A 27-year-old female patient (weight:NA) experienced the following symptoms/conditions: birth control.The patient was prescribed Loestrin (drug dosage: NA), which was initiated on
Sep 20, 2012. Concurrently used drugs:
  • Mirena
.After starting to take Loestrin the consumer reported adverse symptoms, such as: Pulmonary EmbolismThese side effects may potentially be related to Loestrin. The patient was hospitalized.
Loestrin Side Effect Report#8818516
This is a report of a 22-year-old female patient (weight: NA) from US, suffering from the following health symptoms/conditions: NA, who was treated with Loestrin 24 Fe (dosage: NA, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Loestrin 24 Fe treatment in female patients, resulting in Death side effect.
Loestrin Side Effect Report#8817086
Pulmonary Embolism
This report suggests a potential Loestrin Fe Pulmonary Embolism side effect(s) that can have serious consequences. A 47-year-old female patient (weight: NA) from US was diagnosed with the following symptoms/conditions: NA and used Loestrin Fe (dosage: 1 Tablet Once Daily) starting
May 01, 2012. After starting Loestrin Fe the patient began experiencing various side effects, including: Pulmonary EmbolismAdditional drugs used concurrently: NA. Although Loestrin Fe demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Pulmonary Embolism, may still occur.
Loestrin Side Effect Report#8808515
Deep Vein Thrombosis, Pulmonary Embolism
This Deep Vein Thrombosis problem was reported by a consumer or non-health professional from US. A 18-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: oral contraceptive. On
Mar 01, 2007 this consumer started treatment with Loestrin 24 Fe (dosage: One Pill Daily Po). The following drugs were being taken at the same time: NA. When using Loestrin 24 Fe, the patient experienced the following unwanted symptoms/side effects: Deep Vein Thrombosis, Pulmonary EmbolismThe patient was hospitalized.Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Deep Vein Thrombosis, may become evident only after a product is in use by the general population.
Loestrin Side Effect Report#8806211
Pulmonary Thrombosis
This Pulmonary Thrombosis side effect was reported by a consumer or non-health professional from US. A 40-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Loestrin 24 Fe (drug dosage: 1tablet Daily Po), which was initiated on
Feb 10, 2012. Concurrently used drugs: NA..After starting to take Loestrin 24 Fe the consumer reported adverse symptoms, such as: Pulmonary ThrombosisThese side effects may potentially be related to Loestrin 24 Fe. The patient was hospitalized.
Loestrin Side Effect Report#8790573
Paranoia, Anxiety, Night Sweats, Blood Glucose Increased, Hypoglycaemia, Thyroxine Increased, Insomnia, Diarrhoea
This is a report of a 41-year-old female patient (weight: NA) from US, suffering from the following health symptoms/conditions: birth control, who was treated with Loestrin 24 Fe (dosage: 1 Tablet Daily Monthly Po, start time: 201204), combined with: NA. and developed a serious reaction and side effect(s): Paranoia, Anxiety, Night Sweats, Blood Glucose Increased, Hypoglycaemia, Thyroxine Increased, Insomnia, Diarrhoea after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Loestrin 24 Fe treatment in female patients, resulting in Paranoia side effect.


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The appearance of Loestrin 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 Loestrin Side Effects for Women?

Women Side EffectsReports
Pulmonary Embolism 59
Nausea 41
Metrorrhagia 37
Headache 29
Anxiety 28
Pain 26
Amenorrhoea 25
Deep Vein Thrombosis 22
Vomiting 21
Depression 19

What are common Loestrin Side Effects for Men?

Men Side EffectsReports
Immune System Disorder 1
Staphylococcal Infection 1

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.

    Loestrin 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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    Loestrin Safety Alerts, Active Ingredients, Usage Information

    NDC0430-0420
    TypeHUMAN PRESCRIPTION DRUG
    Proprietary NameLo Loestrin Fe norethindrone acetate and ethinyl estradiol, ethinyl estradiol and ferrous fumarate
    NameKIT
    Dosage Form
    Route20101201
    On market sinceWarner Chilcott (US), LLC
    Labeler
    Active Ingredient(s)
    Strength(s)
    Unit(s)
    Pharma Class

    More About Loestrin

    Side Effects reported to FDA: 388

    Loestrin safety alerts: No

    Reported deaths: 8

    Reported hospitalizations: 95

    Latest Loestrin clinical trials