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Index of reports
> Cases with Headache (57)
Below is the selection of side effect reports (a.k.a. adverse event reports) related to Synthroid (Levothyroxine) where reactions include headache. The selected reports were submitted to the FDA during the sample period of about a year. Reports 1 - 30 of 57 Next >>
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from Brazil on 2012-08-22
Patient: female, weighing 73.0 kg (160.6 pounds)
Reactions: Cataract, Hypersensitivity, Glaucoma, Pain in Extremity, Headache, Femoral Artery Embolism, Peripheral Embolism, Malaise, Skin Discolouration, Heart Rate Increased, DRY Mouth, Blood Cholesterol Increased, Vasodilatation, Feeling Abnormal, Hypertension
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Levothyroxine Sodium
Indication: Product Used FOR Unknown Indication
Synthroid
Indication: Hypothyroidism
Levothyroxine Sodium
Indication: Product Used FOR Unknown Indication
Synthroid
Administration route: Oral
Start date: 2007-01-01
Other drugs received by patient: Propafenone HCL; Eparema; Timolol Maleate; Dimethicone; Dramin B6
Possible Synthroid side effects in 81 year old female
Reported by a consumer/non-health professional from United States on 2012-08-10
Patient: 81 year old female, weighing 61.2 kg (134.6 pounds)
Reactions: Weight Decreased, Pain, Chills, Drug Interaction, Headache, Pyrexia, Abdominal Pain Upper, Malaise, Fatigue, Oedema Peripheral, DRY Mouth, Dizziness, Muscle Spasms, Blood Pressure Increased, Vein Disorder, Nausea, Paraesthesia, Anxiety, Panic Attack, Insomnia, Vision Blurred, Gait Disturbance, Influenza
Adverse event resulted in: disablity
Drug(s) suspected as cause:
Synthroid
Dosage: 50 mcg, 1 d
Indication: Thyroid Disorder
Fish OIL (Fish Oil)
Indication: Product Used FOR Unknown Indication
Oxybutynin Chloride
Dosage: 10 mg
Indication: Hypertonic Bladder
Hydrocodone Bitartrate
Dosage: 350 mg, as needed (one or two times)
Indication: Spinal Cord Disorder
Rivastigmine Tartrate
Indication: Dementia
Lisinopril
Dosage: 30 mg (10 mg, 3 in 1 d)
Indication: Hypertension
Aspirin
Dosage: 81 mg, 1 d
Indication: Hypertension
Xanax
Dosage: 1 mg, as required)
Indication: Panic Attack
Multivitamin
Dosage: unknown
Indication: Product Used FOR Unknown Indication
Lyrica
Dosage: 50 mg, 1 d, oral
Administration route: Oral
Indication: Vein Pain
Start date: 2012-07-26
End date: 2012-07-28
Lovastatin
Dosage: 20 mg, d
Indication: Blood Cholesterol
Possible Synthroid side effects in female
Reported by a pharmacist from United States on 2012-08-06
Patient: female, weighing 77.6 kg (170.7 pounds)
Reactions: Cellulitis, Headache
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Synthroid
Other drugs received by patient: Mediciation FOR Migraines; Metformin Hydrochloride
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from Brazil on 2012-07-05
Patient: female, weighing 57.5 kg (126.5 pounds)
Reactions: Bone Pain, Abasia, Pain, Expired Drug Administered, Headache, Bone Erosion, Malaise, Arthropathy, Joint Range of Motion Decreased, Dizziness, Joint Effusion, Sinusitis, Pain in Extremity, Meniscus Cyst, Musculoskeletal Pain, Muscular Weakness, Menopause, Osteoarthritis, Arthralgia, Joint Swelling, Insomnia, Gait Disturbance
Drug(s) suspected as cause:
Levothyroxine Sodium
Dosage: fasting
Administration route: Oral
Indication: Hypothyroidism
Synthroid
Dosage: fasting
Administration route: Oral
Indication: Hypothyroidism
Synthroid
Other drugs received by patient: Estradiol; Estradiol
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-06-13
Patient: female, weighing 44.4 kg (97.8 pounds)
Reactions: Increased Appetite, Conversion Disorder, Pain, Headache, Herpes Zoster, Fatigue, Dizziness, Emotional Disorder, Hallucination, Candidiasis, Thyroid Function Test Abnormal, Nervousness, Vomiting, Restlessness, Insomnia, Vertigo, Vision Blurred, Colitis
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Synthroid
Dosage: 75 ug, daily
Indication: Thyroidectomy
Ativan
Dosage: 50 mg, 1x/day
Indication: Agitation
Ativan
Dosage: 0.5 mg, as needed
Oxycodone HCL
Dosage: unk
Ciprofloxacin HCL
Dosage: unk
Morphine Sulfate
Dosage: unk
Lyrica
Dosage: 50 mg, 2x/day
Administration route: Oral
Indication: Post Herpetic Neuralgia
Start date: 2012-05-17
Gabapentin
Dosage: unk, 2x/day
Indication: Post Herpetic Neuralgia
Ativan
Dosage: 25mg in morning and 50mg in evening
Indication: Anxiety
Possible Synthroid side effects in male
Reported by a consumer/non-health professional from United States on 2012-05-24
Patient: male
Reactions: Vomiting, Intracranial Aneurysm, Headache, Loss of Consciousness
Adverse event resulted in: death
Drug(s) suspected as cause:
Synthroid
Other drugs received by patient: Blood Pressure Medication
Possible Synthroid side effects in female
Reported by a physician from United States on 2012-05-04
Patient: female, weighing 97.5 kg (214.5 pounds)
Reactions: Drug Dose Omission, Asthma, Scab, Orthostatic Hypotension, Headache, Fall, Chest Pain, Dizziness, Migraine, Dyspnoea, Drug Hypersensitivity, Supraventricular Tachycardia, Laceration, Impaired Healing, LOW Density Lipoprotein Increased, Hypertension, Sleep Apnoea Syndrome
Drug(s) suspected as cause:
Aspirin
Indication: Product Used FOR Unknown Indication
Topamax
Indication: Product Used FOR Unknown Indication
Vesicare
Indication: Product Used FOR Unknown Indication
Singulair
Indication: Product Used FOR Unknown Indication
Promethazine
Indication: Product Used FOR Unknown Indication
Methotrexate
Administration route: Oral
Indication: Product Used FOR Unknown Indication
Tizanidine HCL
Indication: Product Used FOR Unknown Indication
Sulfasalazine
Administration route: Oral
Indication: Product Used FOR Unknown Indication
Butalbital
Indication: Product Used FOR Unknown Indication
Remicade
Start date: 2011-01-01
Verapamil
Indication: Product Used FOR Unknown Indication
Neurontin
Administration route: Oral
Indication: Product Used FOR Unknown Indication
Folic Acid
Administration route: Oral
Indication: Product Used FOR Unknown Indication
Prozac
Indication: Product Used FOR Unknown Indication
Remicade
Indication: Rheumatoid Arthritis
Remicade
Dosage: loading dose
Start date: 2010-01-01
Darvon
Indication: Product Used FOR Unknown Indication
Fiorinal
Indication: Product Used FOR Unknown Indication
Enalapril Maleate
Indication: Product Used FOR Unknown Indication
Xanax
Indication: Product Used FOR Unknown Indication
Requip
Indication: Product Used FOR Unknown Indication
Voltaren
Administration route: Topical
Indication: Product Used FOR Unknown Indication
Lodine
Indication: Product Used FOR Unknown Indication
Soma
Administration route: Oral
Indication: Product Used FOR Unknown Indication
Synthroid
Administration route: Oral
Indication: Product Used FOR Unknown Indication
Calcium and VIT D
Indication: Product Used FOR Unknown Indication
Hydrocodone Bitartrate and Ibuprofen
Indication: Product Used FOR Unknown Indication
Phenergan
Indication: Product Used FOR Unknown Indication
Other drugs received by patient: Methotrexate
Possible Synthroid side effects in 44 year old female
Reported by a consumer/non-health professional from United States on 2012-04-24
Patient: 44 year old female, weighing 89.8 kg (197.6 pounds)
Reactions: Anxiety, Dyspepsia, Nonspecific Reaction, Drug Detoxification, Catatonia, Headache, Drug Withdrawal Syndrome
Drug(s) suspected as cause:
Neurontin
Dosage: 1600 mg, daily
Baclofen
Dosage: unknown
Indication: Muscle Spasms
Betaseron
Dosage: 0.25/1mg/ml qod
Indication: Multiple Sclerosis
Pristiq
Dosage: 50 mg, qd
Indication: Depression
Pristiq
Dosage: 50 mg, qd
Tramadol Hydrochloride
Dosage: 50mg to 300mg daily
Indication: Pain
Adderall 5
Dosage: 30 mg, qd
Indication: Anxiety
Pristiq
Dosage: 50 mg, qod
Administration route: Oral
Start date: 2012-01-01
Percocet
Dosage: (10/325mg) up to 8 tablets, prn
Administration route: Oral
Indication: Pain
Xanax
Dosage: 0.25 mg, 4 to 5 tablets
Administration route: Oral
Indication: Anxiety
Xanax
Indication: Headache
Neurontin
Dosage: 300 mg, daily
Indication: Muscle Spasticity
Adderall 5
Indication: Nervous System Disorder
Pristiq
Dosage: 100 mg, qd
Synthroid
Dosage: 50 g, daily
Indication: Thyroid Disorder
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-04-13
Patient: female, weighing 89.9 kg (197.8 pounds)
Reactions: Anxiety, Detoxification, Dyspepsia, Catatonia, Headache
Drug(s) suspected as cause:
Tramadol HCL
Dosage: unk
Indication: Pain
Baclofen
Dosage: unk
Administration route: Oral
Indication: Muscle Spasms
Percocet
Dosage: 10mg/325mg
Administration route: Oral
Indication: Pain
Pristiq
Administration route: Oral
Indication: Depression
Adderall 5
Dosage: 30 mg
Indication: Anxiety
Xanax
Indication: Headache
Neurontin
Xanax
Administration route: Oral
Indication: Anxiety
Neurontin
Indication: Muscle Spasticity
Synthroid
Indication: Thyroid Disorder
Betaseron
Indication: Multiple Sclerosis
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-04-12
Patient: female, weighing 89.9 kg (197.8 pounds)
Reactions: Anxiety, Dyspepsia, Drug Detoxification, Catatonia, Unevaluable Event, Withdrawal Syndrome, Headache
Drug(s) suspected as cause:
Percocet
Dosage: 10/325mg, up to 8 tablets a day, prn
Administration route: Oral
Indication: Pain
Neurontin
Tramadol HCL
Indication: Pain
Synthroid
Indication: Thyroid Disorder
Pristiq
Start date: 2012-01-01
Baclofen
Indication: Muscle Spasms
Neurontin
Indication: Muscle Spasticity
Pristiq
End date: 2012-01-01
Xanax
Administration route: Oral
Indication: Anxiety
Pristiq
Administration route: Oral
Indication: Depression
Adderall 5
Indication: Anxiety
Pristiq
Xanax
Indication: Headache
Adderall 5
Indication: Multiple Sclerosis
Adderall 5
Indication: Nervous System Disorder
Betaseron
Dosage: 0.25mg/1ml eod
Indication: Multiple Sclerosis
Possible Synthroid side effects in female
Reported by a health professional (non-physician/pharmacist) from United States on 2012-03-16
Patient: female, weighing 149.8 kg (329.6 pounds)
Reactions: Migraine, Nausea, Visual Acuity Reduced, Headache, CSF Volume Increased, Benign Intracranial Hypertension, Brain Oedema, Optic Nerve Injury, Dizziness
Drug(s) suspected as cause:
Synthroid
Other drugs received by patient: Ativan; Prilosec
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-03-15
Patient: female, weighing 89.8 kg (197.6 pounds)
Reactions: Anxiety, Detoxification, Dyspepsia, Catatonia, Withdrawal Syndrome, Headache
Drug(s) suspected as cause:
Pristiq
Dosage: 100 mg, 1x/day
Administration route: Oral
Pristiq
Dosage: 50 mg, alternate day
Administration route: Oral
Start date: 2012-01-01
Adderall 5
Indication: Nervous System Disorder
Xanax
Dosage: 0.25 mg up to four to five tablets, unk
Administration route: Oral
Indication: Anxiety
Xanax
Indication: Headache
Pristiq
Dosage: 50 mg, 1x/day
Administration route: Oral
Indication: Depression
Neurontin
Dosage: 300 mg, daily
Indication: Muscle Spasticity
Neurontin
Dosage: 1600 mg, daily
Tramadol HCL
Dosage: 50 mg to 300 mg, daily
Indication: Pain
Percocet
Dosage: 325/10 mg up to eight tablets, as needed
Administration route: Oral
Indication: Pain
Pristiq
Dosage: 50 mg, 1x/day
Administration route: Oral
Baclofen
Dosage: unk
Indication: Muscle Spasms
Betaseron
Dosage: 0.25/1 mg/ml, alternate day
Indication: Multiple Sclerosis
Synthroid
Dosage: 50 ug, daily
Indication: Thyroid Disorder
Adderall 5
Dosage: 30 mg, daily
Indication: Anxiety
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-03-15
Patient: female, weighing 59.0 kg (129.8 pounds)
Reactions: Goitre, Pain, Headache, Hyperhidrosis, Reaction To AZO-Dyes, Loss of Consciousness, Malaise, Overdose, Skin Discolouration, Blood Sodium Decreased, Product Formulation Issue, Vomiting, Swelling Face, Incorrect Dose Administered, Tremor, Convulsion, Insomnia, Feeling Jittery, Feeling Abnormal, Lactation Disorder, Infertility Female
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Synthroid
Administration route: Oral
Indication: Hypothyroidism
Start date: 1984-01-01
Synthroid
Start date: 1999-01-01
Synthroid
Administration route: Oral
Start date: 1984-01-01
End date: 1999-01-01
Synthroid
Start date: 2012-02-01
Other drugs received by patient: Ascorbic Acid; Femhrt; Acidophilus; Folic Acid
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-03-07
Patient: female, weighing 102.4 kg (225.3 pounds)
Reactions: Dysstasia, Dizziness, Headache, Asthenia, Feeling Abnormal
Drug(s) suspected as cause:
Azithromycin
Dosage: unk
Indication: Sinusitis
Azithromycin
Indication: Tooth Infection
Levoxyl
Dosage: 25 ug, 1x/day
Administration route: Oral
Start date: 2011-02-22
End date: 2011-01-01
Synthroid
Dosage: 25 ug, 1x/day
Administration route: Oral
Start date: 2011-03-01
End date: 2011-03-03
Clindamycin HCL
Dosage: unk
Administration route: Oral
Indication: Sinusitis
Start date: 2011-05-23
End date: 2011-05-26
Venlafaxine HCL
Dosage: 75 mg, 2x/day
Administration route: Oral
Indication: Depression
Clindamycin HCL
Indication: Tooth Infection
Other drugs received by patient: Xanax; Xanax
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-01-28
Patient: female, weighing 102.2 kg (224.7 pounds)
Reactions: Vomiting, Orthostatic Hypotension, Headache, Weight Increased, Rheumatoid Arthritis, Neuropathy Peripheral, Dizziness, Gait Disturbance, Intracranial Pressure Increased, Cerebral Cyst, Arthritis
Drug(s) suspected as cause:
Prednisone TAB
Administration route: Oral
Indication: Rheumatoid Arthritis
Synthroid
Administration route: Oral
Indication: Hypothyroidism
Humira
Indication: Rheumatoid Arthritis
Other drugs received by patient: Amitriptyline HCL; Lidocaine Jelly; Triamcinolone Ointment; Oxycodone HCL; Oxycodone HCL; Vitamin TAB; Lyrica; Metaxalone; Lidocaine Pressure Point Injections
Possible Synthroid side effects in 51 year old female
Reported by a health professional (non-physician/pharmacist) from United States on 2012-01-27
Patient: 51 year old female, weighing 77.3 kg (170.1 pounds)
Reactions: Nausea, Musculoskeletal Pain, Blood Thyroid Stimulating Hormone Increased, Headache, Hyperhidrosis, Feeling Cold, Neck Pain, Dizziness, Cold Sweat, Asthenia, Pain in JAW
Drug(s) suspected as cause:
Wellbutrin
Indication: Depression
Start date: 1994-01-01
Synthroid
Indication: Hypothyroidism
Other drugs received by patient: Lorazepam
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-01-05
Patient: female
Reactions: Agitation, Anxiety, Malaise, Palpitations, Blood Thyroid Stimulating Hormone Decreased, Headache, Feeling Abnormal, Paraesthesia
Drug(s) suspected as cause:
Synthroid
Dosage: half of 88mcg plus half of 100mcg daily
Indication: Autoimmune Thyroiditis
Start date: 2011-05-01
End date: 2011-06-01
Synthroid
Dosage: 88mcg for 5 days, 100mcg for 2 days/week
End date: 2011-05-01
Tirosint
Dosage: 88mcg for 5 days, 100mcg for 2 days/week
Indication: Autoimmune Thyroiditis
Start date: 2011-06-07
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: Dizziness, Headache, Depression, Thyroid Function Test Abnormal
Drug(s) suspected as cause:
Synthroid
Start date: 2011-03-01
Synthroid
Indication: Product Used FOR Unknown Indication
End date: 2011-03-01
Other drugs received by patient: Lipitor; Dyazide; Calan; Vasotec; Valium; Acetaminophen; Cymbalta
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-01-05
Patient: female
Reactions: Nausea, Product Colour Issue, Drug Ineffective, Headache, Fatigue, Drug Tolerance Decreased, Alopecia, Withdrawal Syndrome
Drug(s) suspected as cause:
Synthroid
Indication: Hypothyroidism
End date: 2011-01-01
Synthroid
Start date: 2011-01-01
Other drugs received by patient: Cytomel; Trazodone HCL
Possible Synthroid side effects in male
Reported by a consumer/non-health professional from United States on 2012-01-05
Patient: male
Reactions: Dyspnoea, Headache
Drug(s) suspected as cause:
Synthroid
Other drugs received by patient: Vytorin
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-01-05
Patient: female, weighing 68.1 kg (149.8 pounds)
Reactions: Headache
Drug(s) suspected as cause:
Synthroid
Other drugs received by patient: Pepcid; Pradaxa; Lyrica; Lyrica
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-01-05
Patient: female, weighing 69.5 kg (152.8 pounds)
Reactions: Fatigue, Euphoric Mood, Tinnitus, Insomnia, Feeling Hot, Headache
Drug(s) suspected as cause:
Synthroid
Indication: Hypothyroidism
Start date: 2007-01-01
Synthroid
End date: 2010-11-01
Synthroid
Start date: 2010-11-01
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-01-05
Patient: female
Reactions: Ear Disorder, Insomnia, Headache
Drug(s) suspected as cause:
Synthroid
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from Puerto Rico on 2012-01-05
Patient: female, weighing 78.5 kg (172.8 pounds)
Reactions: Weight Increased, Fatigue, Weight Loss Poor, Dyspnoea, Dyspepsia, Headache, Product Physical Issue, Constipation, Blood Glucose Increased
Drug(s) suspected as cause:
Synthroid
Administration route: Oral
Indication: Hypothyroidism
End date: 2011-06-01
Cytomel
Administration route: Oral
Indication: Hypothyroidism
End date: 2011-06-01
Other drugs received by patient: Tramadol HCL
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-01-05
Patient: female
Reactions: Product Counterfeit, Cardiac Flutter, Drug Effect Increased, Headache, Product Physical Issue, Hyperhidrosis, Product Size Issue, Ill-Defined Disorder, Adverse Reaction, Tremor, Malaise, Palpitations, Vision Blurred, Dizziness
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
Reactions: Dysgeusia, Nausea, Headache
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 59.0 kg (129.8 pounds)
Reactions: Hypotension, Headache, Excessive Exercise
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
Reactions: Incorrect Dose Administered, Headache, Respiratory Tract Infection
Drug(s) suspected as cause:
Synthroid
Other drugs received by patient: Aspirin
Possible Synthroid side effects in female
Reported by a consumer/non-health professional from United States on 2012-01-05
Patient: female, weighing 70.8 kg (155.8 pounds)
Reactions: Dizziness, Headache, Feeling Abnormal
Drug(s) suspected as cause:
Synthroid
Administration route: Oral
Indication: Hypothyroidism
Start date: 2008-01-01
Synthroid
Indication: Hypothyroidism
Possible Synthroid side effects in
Reported by a consumer/non-health professional from United States on 2012-01-05
Patient: , weighing 56.8 kg (124.9 pounds)
Reactions: Migraine, Gingival Pruritus, Gingival Swelling, Headache
Drug(s) suspected as cause:
Synthroid
Indication: Autoimmune Thyroiditis
Start date: 2011-12-22
End date: 2011-12-27
Synthroid
Indication: Hypothyroidism
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