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Levothyroxine Side Effects summary
Total Levothyroxine reports: 148.Levothyroxine FDA safety alerts: 2004 .
Reported deaths: 5 Reported hospitalizations: 55.
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Levothyroxine Side Effects: blood thyroid stimulating hormone increased, insomnia, fatigue, headache, pain in extremity, diarrhoea, anxiety, completed suicide, myalgia, asthenia, dyspnoea,
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Self-reported LEVOTHYROXINE Side Effects
Levothyroxine Side Effects Report #SELF395 -2007-12-25
LEVOTHYROXINE problem was reported on 2007-12-25
Patient reported the following LEVOTHYROXINE side effects:"massive weight gaind for they year that I took it. Constant head ache. Manic depression including paranoia and psychosis. Extremely dry skin and excema on the face. Hair loss, including eyelashes and brows. Very tired, yet unable to stay asleep all night. Super sensitive to cold and hot weather. Loose bowels. Memory loss. Loss of sex drive. High blood pressure and cholesterol. Very low pulse rate."Read more
Levothyroxine Side Effects reported to FDA
Showing 1-40 of 148 Next >
Levothyroxine Side Effects Report #5465205-XPharmacist from UNITED STATES reported LEVOTHYROXINE problem on Sept 05, 2007. Female patient, 54 years of age, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: blood thyroid stimulating hormone decreased, palpitations, therapeutic response increased. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with ESTRACE VAGINAL, NASACORT, ESTRADIOL, TESTOSTERONE. Patient was hospitalized. Patient recovered.
Levothyroxine Side Effects Report #5467990-X
LEVOTHYROXINE problem was reported by a Physician from UNITED STATES on Sept 25, 2007. Female patient, 52 years of age, weighting 218.0 lb, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: thyroid function test abnormal. LEVOTHYROXINE dosage: unknown. Patient recovered.
Levothyroxine Side Effects Report #5470238-3
Consumer or non-health professional from CHILE reported LEVOTHYROXINE problem on Sept 18, 2007. Female patient, 37 years of age, was diagnosed with post procedural hypothyroidism, iron deficiency anaemia, hypoparathyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: cardiac failure congestive. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with FERROUS SULPHATE, OYSTER SHELL CALCIUM WITH VITAMIN D, CALCIUM CARBONATE. Patient was hospitalized. Patient recovered.
Levothyroxine Side Effects Report #5472113-7
LEVOTHYROXINE problem was reported by a Pharmacist from UNITED STATES on Sept 18, 2007. Male patient, weighting 264.6 lb, was diagnosed with hypertension and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: dyspnoea, mental disorder, thyroid function test abnormal. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with PROPRANOLOL, TERAZOSIN. Patient was hospitalized. Patient recovered.

Levothyroxine Side Effects Report #5405581-7
Consumer or non-health professional from UNITED STATES reported LEVOTHYROXINE problem on July 31, 2007. Female patient, 58 years of age, was diagnosed with papillary thyroid cancer and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: hypothyroidism. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with WARFARIN, ATENOLOL, LISINOPRIL, FUROSEMIDE, METFORMIN, RISEDRONATE. Patient was hospitalized. Patient recovered.
Levothyroxine Side Effects Report #5405584-2
LEVOTHYROXINE problem was reported by a Pharmacist from UNITED STATES on July 25, 2007. Male patient, weighting 264.6 lb, was diagnosed with hypertension and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: dyspnoea, mental disorder, thyroid function test abnormal. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with PROPRANOLOL, TERAZOSIN. Patient was hospitalized. Patient recovered.
Levothyroxine Side Effects Report #5406045-7
Health Professional from UNITED STATES reported LEVOTHYROXINE problem on Aug 02, 2007. Female patient, weighting 262.0 lb, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: urticaria. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with LEVOXYL. Patient recovered.
Levothyroxine Side Effects Report #5409251-0
LEVOTHYROXINE problem was reported by a Health Professional from CANADA on Aug 03, 2007. Male patient, 80 years of age, was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: gastrointestinal haemorrhage. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with DICLOFENAC. Patient was hospitalized. Patient recovered.
Levothyroxine Side Effects Report #5409467-3
Consumer or non-health professional from UNITED STATES reported LEVOTHYROXINE problem on Aug 08, 2007. Female patient, 51 years of age, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: fatigue, insomnia, tremor. LEVOTHYROXINE dosage: unknown. Patient recovered.

Levothyroxine Side Effects Report #5410269-2
LEVOTHYROXINE problem was reported by a Consumer or non-health professional from UNITED STATES on July 25, 2007. Male patient, 82 years of age, weighting 160.0 lb, was diagnosed with thyroid disorder and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: asthenia, balance disorder, hemiparesis, hyponatraemia, myalgia, neuropathy, pain in extremity, spinal column stenosis, transient ischaemic attack. LEVOTHYROXINE dosage: unknown. Patient was hospitalized. Patient recovered.
Levothyroxine Side Effects Report #5410882-2
Consumer or non-health professional from UNITED STATES reported LEVOTHYROXINE problem on Aug 09, 2007. Male patient, 27 years of age, weighting 220.0 lb, was diagnosed with thyroid disorder and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: anxiety, claustrophobia, cold sweat, dyspnoea, hyperhidrosis, insomnia, mental disorder, panic disorder, tremor. LEVOTHYROXINE dosage: unknown. Patient recovered.
Levothyroxine Side Effects Report #5419597-8
LEVOTHYROXINE problem was reported by a Pharmacist from UNITED STATES on Aug 16, 2007. Female patient was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: anxiety, fatigue, headache, insomnia, therapeutic response unexpected. LEVOTHYROXINE dosage: 0.112 MG DAILY PO. During the same period patient was treated with EFFEXOR, CYCLOBENZAPRINE, ACETAMINOPHEN AND HYDROCODONE BITARTRATE, IBUPROFEN, FOSINOPRIL, VERAPAMIL, HYDROCHLOROTHIAZIDE, PRAVASTATIN. Patient recovered.
Levothyroxine Side Effects Report #5419599-1
Pharmacist from UNITED STATES reported LEVOTHYROXINE problem on Aug 16, 2007. Female patient, weighting 199.0 lb, was diagnosed with post procedural hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: anxiety, fatigue, feeling abnormal, insomnia. LEVOTHYROXINE dosage: 0.137 MG DAILY PO. Patient recovered.
Levothyroxine Side Effects Report #5419601-7
LEVOTHYROXINE problem was reported by a Pharmacist from UNITED STATES on Aug 16, 2007. Female patient, 51 years of age, weighting 145.0 lb, was diagnosed with post procedural hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: anxiety, feeling jittery, hypothyroidism, insomnia, therapeutic response unexpected, weight increased. LEVOTHYROXINE dosage: 0.1 MG DAILY PO. Patient recovered.

Levothyroxine Side Effects Report #5419602-9
Pharmacist from UNITED STATES reported LEVOTHYROXINE problem on Aug 16, 2007. Female patient, weighting 171.0 lb, was diagnosed with post procedural hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: anxiety, feeling abnormal, headache, insomnia, nervousness. LEVOTHYROXINE dosage: 0.150 MG DAILY PO. Patient recovered.
Levothyroxine Side Effects Report #5419604-2
LEVOTHYROXINE problem was reported by a Pharmacist from UNITED STATES on Aug 16, 2007. Female patient, weighting 223.0 lb, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: basedow's disease, blood thyroid stimulating hormone increased, fatigue, therapeutic response unexpected, weight decreased. LEVOTHYROXINE dosage: 0.150 MG DAILY PO. During the same period patient was treated with METFORMIN, LIPITOR, ASPIRIN, ENALAPRIL MALEATE AND HYDROCHLOROTHIAZIDE, NAPROXEN, CALCIUM, CYMBALTA. Patient recovered.
Levothyroxine Side Effects Report #5419607-8
Pharmacist from UNITED STATES reported LEVOTHYROXINE problem on Aug 16, 2007. Female patient, weighting 131.0 lb, was diagnosed with post procedural hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: blood thyroid stimulating hormone increased, diarrhoea, fatigue, feeling jittery, frequent bowel movements, gastroenteritis radiation, malabsorption, nervousness. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with TOPROL, VICODIN. Patient recovered.
Levothyroxine Side Effects Report #5419609-1
LEVOTHYROXINE problem was reported by a Pharmacist from UNITED STATES on Aug 16, 2007. Female patient was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: agitation, anger, anxiety, disease recurrence, hair disorder, hyperthyroidism, insomnia, irritability, therapeutic response unexpected. LEVOTHYROXINE dosage: 0.137 MG DAILY PO. Patient recovered.
Levothyroxine Side Effects Report #5427412-1
Physician from SWEDEN reported LEVOTHYROXINE problem on Aug 16, 2007. Female patient, 59 years of age, was diagnosed with hypothyroidism, anxiety, osteoporosis and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: malignant melanoma. LEVOTHYROXINE dosage: 0.15 MG, DAILY (1/D). During the same period patient was treated with CITALOPRAM, KALCIPOS, FORTEO. Patient recovered.

Levothyroxine Side Effects Report #5441927-1
LEVOTHYROXINE problem was reported by a Consumer or non-health professional from UNITED STATES on Aug 30, 2007. Female patient, 69 years of age, weighting 100.0 lb, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: arrhythmia, asthenia, cardiac arrest, cardiac failure, coordination abnormal, diarrhoea, ill-defined disorder, lung disorder, no therapeutic response. LEVOTHYROXINE dosage: unknown. Patient died on 08/08/2007.
Levothyroxine Side Effects Report #5442882-0
Pharmacist from UNITED STATES reported LEVOTHYROXINE problem on Aug 31, 2007. Female patient, weighting 192.0 lb, was diagnosed with post procedural hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: feeling jittery, hot flush, insomnia. LEVOTHYROXINE dosage: 0.1 MG DAILY PO. Patient recovered.
Levothyroxine Side Effects Report #5442900-X
LEVOTHYROXINE problem was reported by a Physician from UNITED STATES on Aug 31, 2007. Female patient, 35 years of age, weighting 143.0 lb, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: gastric disorder, nausea. LEVOTHYROXINE dosage: unknown. Patient recovered.
Levothyroxine Side Effects Report #5379400-1
Consumer or non-health professional from UNITED STATES reported LEVOTHYROXINE problem on June 21, 2007. Male patient, 82 years of age, weighting 160.0 lb, was diagnosed with thyroid disorder, neuropathy and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: asthenia, balance disorder, myalgia, neuropathy, pain in extremity, spinal column stenosis, therapeutic product contamination, transient ischaemic attack. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with GABAPENTIN. Patient was hospitalized. Patient recovered.
Levothyroxine Side Effects Report #5397602-5
LEVOTHYROXINE problem was reported by a Consumer or non-health professional from UNITED STATES on July 23, 2007. Male patient, weighting 195.0 lb, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: activities of daily living impaired, arthralgia, musculoskeletal stiffness, myalgia. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with LEVOXYL. Patient recovered.
Levothyroxine Side Effects Report #5403754-0
Health Professional from UNITED STATES reported LEVOTHYROXINE problem on July 31, 2007. Female patient, weighting 311.0 lb, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: anxiety. LEVOTHYROXINE dosage: unknown. Patient recovered.
Levothyroxine Side Effects Report #5379400-1
LEVOTHYROXINE problem was reported by a Consumer or non-health professional from UNITED STATES on June 21, 2007. Male patient, 82 years of age, weighting 160.0 lb, was diagnosed with thyroid disorder, neuropathy and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: asthenia, balance disorder, myalgia, neuropathy, pain in extremity, spinal column stenosis, therapeutic product contamination, transient ischaemic attack. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with GABAPENTIN. Patient was hospitalized. Patient recovered.
Levothyroxine Side Effects Report #5397602-5
Consumer or non-health professional from UNITED STATES reported LEVOTHYROXINE problem on July 23, 2007. Male patient, weighting 195.0 lb, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: activities of daily living impaired, arthralgia, musculoskeletal stiffness, myalgia. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with LEVOXYL. Patient recovered.
Levothyroxine Side Effects Report #5403754-0
LEVOTHYROXINE problem was reported by a Health Professional from UNITED STATES on July 31, 2007. Female patient, weighting 311.0 lb, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: anxiety. LEVOTHYROXINE dosage: unknown. Patient recovered.
Levothyroxine Side Effects Report #5765219-6
Health Professional from UNITED STATES reported LEVOTHYROXINE problem on June 10, 2008. Female patient, 47 years of age, weighting 166.0 lb, was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: hypothyroidism. LEVOTHYROXINE dosage: unknown. Patient recovered.
Levothyroxine Side Effects Report #5782810-1
LEVOTHYROXINE problem was reported by a Consumer or non-health professional from UNITED STATES on June 19, 2008. Female patient, weighting 165.0 lb, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: dizziness, paraesthesia, paraesthesia oral, sensation of heaviness, thinking abnormal. LEVOTHYROXINE dosage: unknown. Patient recovered.
Levothyroxine Side Effects Report #5786827-2
Consumer or non-health professional from FRANCE reported LEVOTHYROXINE problem on May 26, 2008. Male patient, 59 years of age, was diagnosed with hypothyroidism, coronary artery insufficiency, sarcoma and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: condition aggravated, renal failure. LEVOTHYROXINE dosage: 150 MG (150 MC-2), ORAL. During the same period patient was treated with BISOPROLOL FUMARATE, METHYPREDNISOLONE, ESOMEPRAZOLE MAGNESIUM, GEMZAR, TAXOTERE, KYTRIL. Patient recovered.
Levothyroxine Side Effects Report #5787069-7
LEVOTHYROXINE problem was reported by a Consumer or non-health professional from UNITED STATES on June 23, 2008. Male patient, 57 years of age, weighting 190.0 lb, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: lethargy, presyncope. LEVOTHYROXINE dosage: .2MG DAILY PO. Patient recovered.
Levothyroxine Side Effects Report #5789469-8
Health Professional from UNITED KINGDOM reported LEVOTHYROXINE problem on June 20, 2008. Female patient, 55 years of age, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: migraine, photopsia. LEVOTHYROXINE dosage: unknown. Patient recovered.
Levothyroxine Side Effects Report #5791992-7
LEVOTHYROXINE problem was reported by a Physician from GERMANY on June 17, 2008. Female patient, 80 years of age, weighting 183.0 lb, was diagnosed with post procedural hypothyroidism, transient ischaemic attack, migraine, reflux oesophagitis and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: pulmonary fibrosis. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with NATIL, OMEPRAZOLE, ISCOVER. Patient recovered.
Levothyroxine Side Effects Report #5792960-1
Consumer or non-health professional from UNITED STATES reported LEVOTHYROXINE problem on June 26, 2008. Female patient, 69 years of age, weighting 136.0 lb, was diagnosed with autoimmune thyroiditis and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: autoimmune thyroiditis. LEVOTHYROXINE dosage: unknown. Patient recovered.
Levothyroxine Side Effects Report #5793219-9
LEVOTHYROXINE problem was reported by a Consumer or non-health professional from UNITED KINGDOM on June 17, 2008. Female patient, 63 years of age, was diagnosed with thyroid cancer and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: atrial fibrillation, cerebrovascular accident. LEVOTHYROXINE dosage: unknown. Patient died.
Levothyroxine Side Effects Report #5794287-0
Health Professional from JAPAN reported LEVOTHYROXINE problem on June 17, 2008. Female patient, 34 years of age, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: depressed level of consciousness, overdose. LEVOTHYROXINE dosage: unknown. During the same period patient was treated with LANSOPRAZOLE, CITALOPRAM HYDROBROMIDE, COMBIVENT, THEOPHYLLINE, CLOZAPINE. Patient died on 04/14/2006.
Levothyroxine Side Effects Report #5794669-7
LEVOTHYROXINE problem was reported by a Health Professional from UNITED STATES on June 27, 2008. Female patient, 43 years of age, weighting 166.0 lb, was diagnosed with hypothyroidism and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: blood thyroid stimulating hormone decreased, blood thyroid stimulating hormone increased, treatment failure. LEVOTHYROXINE dosage: unknown. Patient recovered.
Levothyroxine Side Effects Report #5794743-5
Consumer or non-health professional from UNITED KINGDOM reported LEVOTHYROXINE problem on June 11, 2008. Female patient, 63 years of age, was diagnosed with thyroid cancer and was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: atrial fibrillation, cerebrovascular accident. LEVOTHYROXINE dosage: unknown. Patient died.
Levothyroxine Side Effects Report #5794977-X
LEVOTHYROXINE problem was reported by a Consumer or non-health professional from UNITED STATES on June 27, 2008. Female patient, 47 years of age, weighting 134.0 lb, was treated with LEVOTHYROXINE. After drug was administered, patient experienced the following problems/side effects: alopecia, attention deficit/hyperactivity disorder, nail growth abnormal, onychoclasis, post procedural complication, skin disorder, trichorrhexis. LEVOTHYROXINE dosage: unknown. Patient recovered.
Showing 1-40 of 148 Next >
Levothyroxine Side Effects


