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Synthroid (Levothyroxine) - Drug Ineffective - Suspected Cause - Side Effect Reports

 
 



Index of reports > Cases with Drug Ineffective (51)

Below is the selection of side effect reports (a.k.a. adverse event reports) related to Synthroid (Levothyroxine) where reactions include drug ineffective. The selected reports were submitted to the FDA during the sample period of about a year.

 Reports 1 - 30 of 51   Next >>

Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-07-30

Patient: female

Reactions: Madarosis, Drug Ineffective

Drug(s) suspected as cause:
Synthroid
    Dosage: 112 a?g, qd
    Administration route: Oral
    Indication: Thyroid Disorder
    Start date: 2006-01-01

Latisse
    Dosage: 2 gtt, qhs
    Administration route: Topical
    Indication: Hypotrichosis
    Start date: 2011-08-01



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-07-11

Patient: female, weighing 74.4 kg (163.6 pounds)

Reactions: Drug Ineffective, Insomnia, Blood Thyroid Stimulating Hormone Increased

Drug(s) suspected as cause:
Cytomel
    Dosage: unk
    Administration route: Oral
    Indication: Hypothyroidism

Ambien
    Dosage: unk
    Indication: Insomnia

Sonata
    Dosage: unk
    Indication: Insomnia

Acetaminophen
    Dosage: unk
    Indication: Insomnia

Lunesta
    Dosage: unk
    Indication: Insomnia

Synthroid
    Dosage: 75 ug, unk
    Administration route: Oral
    Indication: Hypothyroidism

Synthroid
    Dosage: unk
    Administration route: Oral



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from Brazil on 2012-06-20

Patient: female, weighing 62.0 kg (136.4 pounds)

Reactions: Dermatitis Allergic, Hypersensitivity, Drug Ineffective, Hypovitaminosis, Skin Exfoliation, Breast Cancer Female, Pruritus Allergic, Osteopenia, Breast Dysplasia, Blood Calcium Decreased, Vitamin B12 Deficiency

Drug(s) suspected as cause:
Synthroid
    Dosage: 1 tablet on empty stomach
    Administration route: Oral
    Start date: 2012-03-01
    End date: 2012-04-01

Synthroid
    Dosage: 1 tablet on empty stomach
    Administration route: Oral
    Indication: Hypothyroidism
    Start date: 1997-01-01
    End date: 2001-09-01

Synthroid
    Dosage: 1 tablet on empty stomach
    Administration route: Oral
    Start date: 2011-09-01
    End date: 2012-03-01



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-05-23

Patient: female, weighing 52.2 kg (114.7 pounds)

Reactions: Drug Ineffective, Dizziness, Stress

Drug(s) suspected as cause:
Synthroid
    Dosage: 0.2 mg, daily
    Indication: Thyroidectomy
    Start date: 1981-01-01

Xanax
    Dosage: 0.5 mg, as needed
    Indication: Stress



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-05-21

Patient: female, weighing 61.3 kg (134.8 pounds)

Reactions: Hypersensitivity, Drug Ineffective, DRY Skin, Somnolence, Skin Fissures, Pruritus Generalised, Weight Increased, Fatigue, Fibromyalgia, Alopecia, Hypothyroidism, Blood Cholesterol Increased, Eye Swelling, Heart Rate Irregular, Hypertension

Drug(s) suspected as cause:
Synthroid
    Indication: Hypothyroidism
    Start date: 2000-01-01
    End date: 2010-01-01

Cytomel
    Indication: Hypothyroidism
    Start date: 2010-01-01

Levothyroxine Sodium
    Indication: Hypothyroidism

Liothyronine Sodium
    Dosage: 75mcg, daily at night
    Indication: Hypothyroidism
    Start date: 2012-04-23



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-05-01

Patient: female, weighing 61.0 kg (134.2 pounds)

Reactions: Eyelid Oedema, Hypersensitivity, Drug Ineffective, Urticaria, DRY Skin, Somnolence, Pruritus Generalised, Fatigue, Joint Crepitation, Fibromyalgia, Alopecia, Blood Cholesterol Increased, Weight Fluctuation, Hypertension, Heart Rate Abnormal

Drug(s) suspected as cause:
Levothyroxine Sodium
    Dosage: unk
    Indication: Hypothyroidism

Cytomel
    Dosage: 25 ug, 8x/day
    Indication: Hypothyroidism
    Start date: 2010-01-01

Levothyroxine Sodium
    Dosage: 75 ug, daily
    Indication: Hypothyroidism
    Start date: 2012-04-23

Synthroid
    Dosage: unk, 2x/day
    Indication: Hypothyroidism
    Start date: 2002-01-01
    End date: 2010-01-01



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from Brazil on 2012-04-24

Patient: female, weighing 62.0 kg (136.4 pounds)

Reactions: Breast Cancer, Dermatitis Allergic, Hypersensitivity, Hypovitaminosis, Drug Ineffective, Skin Exfoliation, Pruritus Allergic, Osteopenia, Blood Calcium Decreased, Vitamin B12 Deficiency

Drug(s) suspected as cause:
Synthroid
    Dosage: 1 tablet on empty stomach
    Administration route: Oral
    Indication: Hypothyroidism
    Start date: 1999-01-01
    End date: 2001-09-01

Synthroid
    Dosage: 1 tablet on empty stomach
    Administration route: Oral
    Start date: 2011-09-01
    End date: 2012-03-01

Synthroid
    Dosage: 1 tablet on empty stomach
    Administration route: Oral
    Start date: 2012-03-01



Possible Synthroid side effects in male

Reported by a physician from United States on 2012-04-20

Patient: male, weighing 69.9 kg (153.8 pounds)

Reactions: Nasopharyngitis, Drug Ineffective, Deafness, Hypohidrosis, Weight Increased, Fatigue, Dizziness, Carpal Tunnel Syndrome, Temperature Intolerance, Hypersomnia, Decreased Appetite, Muscle Spasms, Gastrointestinal Disorder, Hypothyroidism, Memory Impairment, Asthenia, Feeling Abnormal

Drug(s) suspected as cause:
Synthroid
    Dosage: unit dose is daily average
    Administration route: Oral
    Indication: Hypothyroidism
    Start date: 2005-01-01
    End date: 2012-03-31

Synthroid
    Start date: 2012-04-01

Other drugs received by patient: Areds EYE Vitamins; Cytomel



Possible Synthroid side effects in 80 year old male

Reported by a consumer/non-health professional from United States on 2012-03-26

Patient: 80 year old male, weighing 69.9 kg (153.7 pounds)

Reactions: Product Quality Issue, Drug Ineffective

Drug(s) suspected as cause:
Synthroid
    Dosage: 80 mcg
    Administration route: Oral
    Indication: Hypothyroidism
    Start date: 2011-12-21
    End date: 2012-03-14

Synthroid



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-02-17

Patient: female, weighing 53.1 kg (116.9 pounds)

Reactions: Drug Ineffective, Weight Increased, Fatigue, RED Blood Cell Count Decreased, Depression, Brain Neoplasm Benign, White Blood Cell Count Decreased, Blood Pressure Increased, Thyroid Cancer, Renal Cancer, Ovarian Cyst, Swollen Tongue, Mental Impairment, Neoplasm Malignant, Paraganglion Neoplasm Benign, Thyroid Disorder, Ovarian Cancer

Drug(s) suspected as cause:
Synthroid
    Indication: Product Used FOR Unknown Indication

Synthroid
    Start date: 2011-01-01

Sutent
    Indication: Renal Cancer Metastatic



Possible Synthroid side effects in male

Reported by a consumer/non-health professional from United States on 2012-01-11

Patient: male, weighing 82.5 kg (181.6 pounds)

Reactions: Accident, Drug Ineffective, Sleep Disorder, Hypertension, Joint Injury

Drug(s) suspected as cause:
Synthroid
    Dosage: 0.125 mg, 1x/day
    Indication: Thyroid Disorder
    Start date: 2011-01-01

Lunesta
    Dosage: 3mg daily
    Indication: Sleep Disorder
    Start date: 2011-01-01
    End date: 2012-01-01

Lorazepam
    Dosage: 1mg daily
    Indication: Anxiety
    Start date: 2011-12-25

Pristiq
    Dosage: 50 mg, 1x/day
    Indication: Anxiety
    Start date: 2011-12-01

Lorazepam
    Indication: Depression

Lipitor
    Dosage: 20 mg, 1x/day
    Administration route: Oral
    Indication: Blood Cholesterol Increased
    Start date: 2009-01-01

Lexapro
    Dosage: unk
    Indication: Anxiety
    End date: 2011-12-01

Pristiq
    Indication: Depression



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-01-05

Patient: female

Reactions: Middle Insomnia, Drug Ineffective

Drug(s) suspected as cause:
Synthroid



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-01-05

Patient: female, weighing 61.3 kg (134.8 pounds)

Reactions: Vomiting, Diarrhoea, Nausea, Drug Ineffective, Alopecia, Dizziness, Headache, Thyroid Function Test Abnormal

Drug(s) suspected as cause:
Levothyroxine Sodium
    Start date: 2010-08-01

Levothyroxine Sodium
    End date: 2010-08-01

Levothyroxine Sodium
    Indication: Hypothyroidism
    Start date: 2001-01-01
    End date: 2010-06-01

Synthroid
    Indication: Hypothyroidism
    Start date: 1990-01-01
    End date: 2001-01-01

Synthroid
    Start date: 2010-06-01



Possible Synthroid side effects in female

Reported by a pharmacist from United States on 2012-01-05

Patient: female

Reactions: Fatigue, Arthralgia, Drug Ineffective, Feeling Abnormal

Drug(s) suspected as cause:
Synthroid

Other drugs received by patient: Unknown Nutrition Supplements



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-01-05

Patient: female, weighing 104.4 kg (229.7 pounds)

Reactions: Drug Ineffective, Heart Rate Increased, Hypothyroidism

Drug(s) suspected as cause:
Synthroid

Other drugs received by patient: Bumetadine; Aciphex; Calcitriol; Diurenium; Coumadin



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-01-05

Patient: female, weighing 79.9 kg (175.8 pounds)

Reactions: Weight Increased, Fatigue, Activities of Daily Living Impaired, Drug Ineffective, Alopecia, Incorrect Storage of Drug, Feeling Cold

Drug(s) suspected as cause:
Synthroid

Other drugs received by patient: Cytomel



Possible Synthroid side effects in female

Reported by a physician from United States on 2012-01-05

Patient: female, weighing 81.3 kg (178.8 pounds)

Reactions: Fatigue, Drug Ineffective, Alopecia, Hypothyroidism, Blood Thyroid Stimulating Hormone Abnormal, Sluggishness, Muscle Spasms

Drug(s) suspected as cause:
Synthroid
    Indication: Hypothyroidism
    Start date: 2011-03-01

Synthroid
    Indication: Hypothyroidism
    Start date: 2000-06-01
    End date: 2011-03-01

Synthroid
    Indication: Nodule

Other drugs received by patient: Hyzaar



Possible Synthroid side effects in female

Reported by a pharmacist from United States on 2012-01-05

Patient: female

Reactions: Product Coating Issue, Drug Ineffective, Lethargy

Drug(s) suspected as cause:
Synthroid



Possible Synthroid side effects in female

Reported by a pharmacist from United States on 2012-01-05

Patient: female

Reactions: Drug Ineffective, Somnolence

Drug(s) suspected as cause:
Synthroid
    Indication: Hypothyroidism
    Start date: 1983-01-01
    End date: 2011-10-29

Synthroid
    Start date: 2011-10-29



Possible Synthroid side effects in male

Reported by a consumer/non-health professional from United States on 2012-01-05

Patient: male, weighing 81.7 kg (179.8 pounds)

Reactions: Fatigue, Drug Ineffective

Drug(s) suspected as cause:
Synthroid
    Indication: Hypothyroidism
    Start date: 2008-01-01
    End date: 2010-01-01

Synthroid

Synthroid
    Indication: Hypothyroidism
    Start date: 2010-01-01



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-01-05

Patient: female, weighing 67.2 kg (147.8 pounds)

Reactions: Drug Ineffective, Constipation, Irritability, Weight Increased, Fatigue, Mood Altered, Alopecia, Mood Swings, Asthenia

Drug(s) suspected as cause:
Synthroid
    Administration route: Oral
    Indication: Hypothyroidism
    Start date: 2011-05-01

Synthroid
    Administration route: Oral
    Start date: 2008-01-01
    End date: 2011-05-01



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-01-05

Patient: female

Reactions: Weight Increased, Product Quality Issue, Fatigue, Hot Flush, Drug Ineffective, Sluggishness

Drug(s) suspected as cause:
Synthroid



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-01-05

Patient: female, weighing 95.3 kg (209.7 pounds)

Reactions: Madarosis, Skin Exfoliation, Drug Ineffective, Bursitis, Nail Ridging, Paraesthesia, Body Height Decreased, Weight Increased, Myalgia, Arthralgia, Visual Impairment, Alopecia

Drug(s) suspected as cause:
Synthroid

Other drugs received by patient: Levothyroxine Sodium; Complete Vitamin B Supplement; Enzyme Supplements; Fish OIL



Possible Synthroid side effects in female

Reported by a pharmacist from United States on 2012-01-05

Patient: female

Reactions: Drug Ineffective, Hypothyroidism

Drug(s) suspected as cause:
Synthroid



Possible Synthroid side effects in 59 year old male

Reported by a pharmacist from United States on 2012-01-05

Patient: 59 year old male, weighing 79.5 kg (174.8 pounds)

Reactions: Fatigue, Drug Ineffective, Somnolence, Feeling Abnormal, Lethargy

Drug(s) suspected as cause:
Synthroid
    Indication: Hypothyroidism
    Start date: 2011-02-01

Synthroid
    Start date: 2007-01-01
    End date: 2011-02-01

Other drugs received by patient: Testosterone



Possible Synthroid side effects in female

Reported by a consumer/non-health professional from United States on 2012-01-05

Patient: female, weighing 90.8 kg (199.8 pounds)

Reactions: Product Quality Issue, Fatigue, Drug Ineffective

Drug(s) suspected as cause:
Synthroid

Other drugs received by patient: Zoloft; Zoloft; Allegra



Possible Synthroid side effects in 42 year old female

Reported by a consumer/non-health professional from United States on 2012-01-05

Patient: 42 year old female, weighing 69.0 kg (151.8 pounds)

Reactions: Drug Ineffective

Drug(s) suspected as cause:
Synthroid

Other drugs received by patient: Excedrin (Migraine)



Possible Synthroid side effects in 71 year old female

Reported by a consumer/non-health professional from United States on 2012-01-05

Patient: 71 year old female, weighing 57.7 kg (126.8 pounds)

Reactions: Drug Ineffective, Alopecia, Depression, Asthenia, Onychomadesis, Lethargy

Drug(s) suspected as cause:
Synthroid
    Indication: Hypothyroidism

Cytomel
    Indication: Hypothyroidism



Possible Synthroid side effects in female

Reported by a physician from United States on 2012-01-05

Patient: female

Reactions: Product Counterfeit, Drug Ineffective, Blood Thyroid Stimulating Hormone Increased

Drug(s) suspected as cause:
Synthroid



Possible Synthroid side effects in female

Reported by a health professional (non-physician/pharmacist) from United States on 2012-01-05

Patient: female, weighing 70.0 kg (154.0 pounds)

Reactions: Drug Ineffective, Thyroxine Free Abnormal

Drug(s) suspected as cause:
Synthroid

Other drugs received by patient: YAZ



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