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Flomax Side Effects

Common Flomax Side Effects


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

Dizziness (259)
Iris Disorder (162)
Nocturia (156)
Procedural Complication (104)
Dysuria (100)
Pollakiuria (99)
Miosis (82)
Fatigue (75)
Vision Blurred (71)
Rhinorrhoea (70)
Dyspnoea (68)
Insomnia (66)
Cataract Operation Complication (62)
Back Pain (61)
Cataract (60)
Hypotension (58)
Ejaculation Failure (57)
Headache (57)
Loss Of Consciousness (57)
Syncope (57)

➢ 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.

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.

Flomax Side Effects Reported to FDA

The following Flomax 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.


The appearance of Flomax 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.
Amnesia
This is a report of a 63-year-old male patient (weight: NA) from GB, suffering from the following symptoms/conditions: NA, who was treated with Flomax Mr (dosage: NA, start time: 2010), combined with:
  • Contiflo
  • Amitriptyline (10 Mg)
and developed a serious reaction and side effect(s). The consumer presented with:
  • Amnesia
which developed after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Flomax Mr treatment in male patients, resulting in amnesia side effect.

Therapeutic Response Unexpected, Arrhythmia Supraventricular, Ventricular Arrhythmia, Blood Pressure Decreased
This report suggests a potential Flomax Capsules Therapeutic Response Unexpected, Arrhythmia Supraventricular, Ventricular Arrhythmia, Blood Pressure Decreased side effect(s) that can have serious consequences. A 82-year-old male patient (weight: NA) from US was diagnosed with the following symptoms/conditions: benign prostatic hyperplasia and used Flomax Capsules (dosage: NA) starting NS. Soon after starting Flomax Capsules the patient began experiencing various side effects, including:
  • Therapeutic Response Unexpected
  • Arrhythmia Supraventricular
  • Ventricular Arrhythmia
  • Blood Pressure Decreased
Drugs used concurrently: NA. Although Flomax Capsules demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as therapeutic response unexpected, may still occur.

Anaphylactic Shock
This Anaphylactic Shock problem was reported by a pharmacist from US. A 53-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On Mar 08, 2013 this consumer started treatment with Flomax (dosage: NA). The following drugs were being taken at the same time:
  • Lortab
  • Niacin
  • Multihance
When commencing Flomax, the patient experienced the following unwanted symptoms/side effects:
  • Anaphylactic Shock
The 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 anaphylactic shock, may become evident only after a product is in use by the general population.

Parosmia
This is a report of a 68-year-old female patient (weight: NA) from US. The patient developed the following symptoms/conditions: urinary retention and was treated with Flomax (dosage: 1 Pill Once Daily Taken By Mouth) starting Jan 08, 2014. Concurrently used drugs: NA.Soon after that, the consumer experienced the following side effects:
  • Parosmia
This opens a possibility that Flomax treatment could cause the above reactions, including parosmia, and some female subjects may be more susceptible.


Syncope, Diabetes Mellitus
A 79-year-old male patient (weight: NA) from US with the following symptoms/conditions: benign prostatic hyperplasia,blood cholesterol increased,ventricular extrasystoles started Flomax Capsules treatment (dosage: 0.8 Mg) on 2010. Soon after starting Flomax Capsules treatment, the subject experienced various side effects, including:
  • Syncope
  • Diabetes Mellitus
Concurrently used drugs:
  • Pravachol (80 Mg)
  • Bystolic (5 Mg)
This finding indicates that some male patients could be more vulnerable to Flomax Capsules.

Chromaturia, Sinus Disorder, Glassy Eyes, Acne, Sensitivity Of Teeth, Hot Flush, Chills, Back Pain
A 61-year-old female patient from US (weight: NA) experienced symptoms, such as: NA and was treated with Flomax Capsules(dosage: NA). The treatment was initiated on Dec 16, 2013. After that a consumer reported the following side effect(s):
  • Chromaturia
  • Sinus Disorder
  • Glassy Eyes
  • Acne
  • Sensitivity Of Teeth
  • Hot Flush
  • Chills
  • Back Pain
Concurrently used drugs, which potentially could have contributed to side effect(s) or affected Flomax Capsules efficacy: NA.

Semen Volume Abnormal
In this report, Flomax Capsules was administered for the following condition: prostatomegaly.A male consumer from US (weight: NA) started Flomax Capsules treatment (dosage: NA) on NS.Sometime after starting the treatment, the patient complained of the following side effect(s):
  • Semen Volume Abnormal
A possible interaction with other drugs could have contributed to this reaction: NA.Establishing a causal relationship between a specific drug and consumer's side effects is complex, but it is possible that in this report Flomax Capsules treatment could be related to the listed above side effect(s).

Off Label Use
This is a report of the following Flomax Capsules side effect(s):
  • Off Label Use
A 13-year-old female patient from US (weight: NA) presented with the following condition: NA and received a treatment with Flomax Capsules (dosage: 0.4 Mg) starting: Dec 04, 2013.The following concurrently used drugs could have generated interactions: NA.This report suggests that a Flomax Capsules treatment could be associated with the listed above side effect(s).

Cataract
This Flomax Capsules report was submitted by a male consumer from US (weight: NA). The patient was diagnosed with: dysuria and Flomax Capsules was administered (dosage: 0.4 Mg) starting: NS. The consumer developed a set of symptoms:
  • Cataract
Other drugs used simultaneously: NA.Those unexpected symptoms could be linked to a Flomax Capsules treatment, however establishing a potential drug-safety problem requires a more detailed clinical analysis.

Nasal Congestion, Insomnia
This is a report of a possible correlation between Flomax use and the following symptoms/side effect(s):
  • Nasal Congestion
  • Insomnia
which could contribute to an assessment of Flomax risk profile.A 79-year-old male consumer from US (weight: NA) was suffering from urine flow decreased and was treated with Flomax (dosage: NA) starting NS.Other concurrent medications:
  • Nifedipine
  • Fludrocort
  • Midodrine


Blood Pressure Systolic Increased
A 84-year-old male patient from US (weight: NA) presented with the following symptoms: benign prostatic hyperplasia and after a treatment with Flomax Capsules (dosage: 0.4 Mg) experienced the following side effect(s):
  • Blood Pressure Systolic Increased
The treatment was started on 201308. Flomax Capsules was used in combination with the following drugs: NA.This report could alert potential Flomax Capsules consumers.

Prostate Cancer, Cataract
In this report, a male patient from US (weight: NA) was affected by a possible Flomax Capsules side effect.The patient was diagnosed with benign prostatic hyperplasia,hypothyroidism. After a treatment with Flomax Capsules (dosage: 0.4 Mg, start date: 2006), the patient experienced the following side effect(s):
  • Prostate Cancer
  • Cataract
The following simultaneously used drugs could have led to this reaction:
  • Levothyroxine (125 Mcg)
  • Cialis (5 Mg)
  • Nexium (40 Mg)
  • Spironolactone (25 Mg)
The findings here stress that side effects should be taken into consideration when evaluating a Flomax Capsules treatment.

Lung Neoplasm Malignant, Foreign Body
This is a report of a 85-year-old male patient from US (weight: NA), who used Flomax Capsules (dosage: 0.4 Mg) for a treatment of benign prostatic hyperplasia. After starting a treatment on NS, the patient experienced the following side effect(s):
  • Lung Neoplasm Malignant
  • Foreign Body
The following drugs could possibly have interacted with the Flomax Capsules treatment NA.The patient was hospitalized.Taken together, these observations suggest that a Flomax Capsules treatment could be related to side effect(s), such as Lung Neoplasm Malignant, Foreign Body.

Tremor
This tremor side effect was reported by a consumer or non-health professional from US. A 72-year-old male patient (weight:NA) experienced the following symptoms/conditions: benign prostatic hyperplasia,anxiety,fluid retention,depression. The patient was prescribed Flomax Capsules (dosage: NA), which was started on Oct 04, 2013. Concurrently used drugs:
  • Klonopin (5 Mg)
  • Triamterene (37.5 Mg)
  • Paxil (10 Mg)
  • Warfarin (2.5 Mg)
  • Lasix (20 Mg)
  • Iron Supplement
  • Protonix (80 Mg)
  • Metoprolol (50 Mg)
When starting to take Flomax Capsules the consumer reported the following symptoms:
  • Tremor
These side effects may potentially be related to Flomax Capsules.

Off Label Use
This is a Flomax Capsules side effect report of a 15-year-old male patient (weight:NA) from US, suffering from the following symptoms/conditions: urinary incontinence,sleep disorder,neuropathy peripheral, who was treated with Flomax Capsules (dosage:0.4 Mg, start time: 201308), combined with:
  • Clonidine (0.3 Mg)
  • Neurontin (1200 Mg)
  • Klonopin (0.75 Mg)
  • Nexium (20 Mg)
  • Atropine Eye Drops Inside Of Cheeks (Eye Drops, Strength: 2 Drops)
, and developed a serious reaction and a off label use side effect. The patient presented with:
  • Off Label Use
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Flomax Capsules treatment in male patients suffering from urinary incontinence,sleep disorder,neuropathy peripheral, resulting in off label use.

Hyperchlorhydria, Dyspepsia, Abdominal Pain Upper
This report suggests a potential Flomax Capsules hyperchlorhydria side effect(s) that can have serious consequences. A 89-year-old male patient from US (weight:NA) was diagnosed with the following health condition(s): benign prostatic hyperplasia,eye disorder,blood cholesterol increased,hypertension and used Flomax Capsules (dosage: 0.8 Mg) starting NS. Soon after starting Flomax Capsules the patient began experiencing various side effects, including:
  • Hyperchlorhydria
  • Dyspepsia
  • Abdominal Pain Upper
Drugs used concurrently:
  • Preservision
  • Lipitor
  • Cardizem
  • Aspirin (81 Mg)
Although Flomax Capsules demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as hyperchlorhydria, may still occur.

Loss Of Consciousness, Hypotension, Fall, Brain Operation
This loss of consciousness problem was reported by a consumer or non-health professional from US. A 78-year-old male patient (weight: NA) was diagnosed with the following medical condition(s): nephrolithiasis.On 201205 a consumer started treatment with Flomax (dosage: NA). The following drugs/medications were being taken at the same time: NA. When commencing Flomax, the patient experienced the following unwanted symptoms /side effects:
  • Loss Of Consciousness
  • Hypotension
  • Fall
  • Brain Operation
The patient was hospitalized. Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as loss of consciousness, may become evident only after a product is in use by the general population.

Stomatitis
This is a Flomax side effect report of a 74-year-old male patient (weight: NA) from US. The patient developed the following symptoms/conditions: pollakiuria and was treated with Flomax (dosage: NA) starting NS. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Stomatitis
This opens a possibility that Flomax could cause stomatitis and that some male patients may be more susceptible.

Device Occlusion
A male patient (weight: NA) from US with the following symptoms: NA started Flomax treatment (dosage: 0.4mg Cap Qday Per Gtube) on 2010. Soon after starting Flomax treatment, the consumer experienced several side effects, including:
  • Device Occlusion
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Flomax side effects, such as device occlusion.

Hepatic Enzyme Abnormal
This hepatic enzyme abnormal side effect was reported by a consumer or non-health professional from US. A 57-year-old male patient (weight:NA) experienced the following symptoms/conditions: benign prostatic hyperplasia.The patient was prescribed Flomax Capsules (dosage: 0.4 Mg), which was started on 201305. Concurrently used drugs: NA..When starting to take Flomax Capsules the consumer reported symptoms, such as:
  • Hepatic Enzyme Abnormal
These side effects may potentially be related to Flomax Capsules.

Pruritus, Paraesthesia, Formication
This is a report of a 77-year-old male patient (weight: NA) from US, suffering from the following symptoms/conditions: NA, who was treated with Flomax Capsules (dosage: 0.4 Mg, start time: 2011), combined with: NA. and developed a serious reaction and side effect(s). The consumer presented with:
  • Pruritus
  • Paraesthesia
  • Formication
which developed after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Flomax Capsules treatment in male patients, resulting in pruritus side effect.

Mesenteritis, Protein-losing Gastroenteropathy, Oedema Peripheral, Asthenia, Tremor, Mood Altered
This report suggests a potential Flomax Mesenteritis, Protein-losing Gastroenteropathy, Oedema Peripheral, Asthenia, Tremor, Mood Altered side effect(s) that can have serious consequences. A 68-year-old male patient (weight: NA) from COUNTRY NOT SPECIFIED was diagnosed with the following symptoms/conditions: prostatism,mesenteritis and used Flomax (dosage: NA) starting NS. Soon after starting Flomax the patient began experiencing various side effects, including:
  • Mesenteritis
  • Protein-losing Gastroenteropathy
  • Oedema Peripheral
  • Asthenia
  • Tremor
  • Mood Altered
Drugs used concurrently:
  • Prednisone (60 Mg)
  • Calcium
  • Vitamin E
Although Flomax demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as mesenteritis, may still occur.

Arthropathy
This Arthropathy problem was reported by a consumer or non-health professional from US. A 88-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: prostatomegaly. On Oct 12, 2010 this consumer started treatment with Flomax (dosage: 1 Pill, 1 At Bedtime By Mouth.). The following drugs were being taken at the same time:
  • Vitamins
  • Garlio Capsules
  • Coenzymeq10
  • Vitamin D
  • Calcium
  • Magnesium
  • Zinc
  • Omega3
When commencing Flomax, the patient experienced the following unwanted symptoms/side effects:
  • Arthropathy
Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as arthropathy, may become evident only after a product is in use by the general population.

Haematochezia
This is a report of a 83-year-old male patient (weight: NA) from US. The patient developed the following symptoms/conditions: benign prostatic hyperplasia,cerebrovascular accident prophylaxis,hypertension,blood cholesterol increased and was treated with Flomax Capsules (dosage: 0.4 Mg) starting 201305. Concurrently used drugs:
  • Aggrenox (Strength: 25 Mg / 200 Mg; Daily Dose: 50mg/ 400mg)
  • Lisinopril
  • Vytorin
  • Vit D
  • Lexapro
  • Losartan
  • Amlodipine
  • Vit C
Soon after that, the consumer experienced the following side effects:
  • Haematochezia
This opens a possibility that Flomax Capsules treatment could cause the above reactions, including haematochezia, and some male subjects may be more susceptible.

Sinusitis, Fatigue, Dyspnoea, Dizziness, Epistaxis
A 64-year-old male patient (weight: NA) from US with the following symptoms/conditions: benign prostatic hyperplasia,anxiety,hypertension,blood cholesterol increased started Flomax treatment (dosage: 0.4 Mg) on 201306. Soon after starting Flomax treatment, the subject experienced various side effects, including:
  • Sinusitis
  • Fatigue
  • Dyspnoea
  • Dizziness
  • Epistaxis
Concurrently used drugs:
  • Imipramine (20 Mg)
  • Bystolic (5 Mg)
  • Atorvastatin (40 Mg)
  • Zetia (10 Mg)
  • Vascepa (2 G)
This finding indicates that some male patients could be more vulnerable to Flomax.

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Top 10 Flomax Side Effects for Women

Women Side EffectsReports
Dizziness 11
Nausea 9
Loss Of Consciousness 7
Fall 6
Fatigue 6
Syncope 6
Urinary Retention 6
Vomiting 6
Back Pain 5
Feeling Abnormal 5

Top 10 Flomax Side Effects for Men

Men Side EffectsReports
Dizziness 246
Iris Disorder 158
Nocturia 152
Procedural Complication 102
Dysuria 95
Pollakiuria 95
Miosis 79
Fatigue 69
Rhinorrhoea 69
Vision Blurred 68

Keep Track of Side Effects

Note Your Observations

It is really important to keep of your 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

    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.


    Discuss Flomax Side Effects

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    Flomax Safety Alerts, Active Ingredients, Usage Information

    NDC0597-0058
    TypeHUMAN PRESCRIPTION DRUG
    Proprietary NameFlomax
    Nametamsulosin hydrochloride
    Dosage FormCAPSULE
    RouteORAL
    On market since19970912
    LabelerBoehringer Ingelheim Pharmaceuticals, Inc.
    Active Ingredient(s)TAMSULOSIN HYDROCHLORIDE
    Strength(s)0.4
    Unit(s)mg/1
    Pharma ClassAdrenergic alpha-Antagonists [MoA],alpha-Adrenergic Blocker [EPC]

    Flomax Dosage, Warnings, Usage.

    Side Effects reported to FDA: 2177

    Flomax safety alerts: 2005

    Reported deaths: 78

    Reported hospitalizations: 467

    Flomax (tamsulosin HCl)

    Audience: Ophthalmologists, Urologists, and other healthcare professionals

    [Posted 11/22/2005] Boehringer Ingelheim and FDA notified healthcare professionals of revisions to PRECAUTIONS and ADVERSE REACTIONS sections of the prescribing information for Flomax, indicated for the treatment of the signs and symptoms of benign prostatic hyperplasia (BPH). A surgical condition termed Intraoperative Floppy Iris Syndrome (IFIS) has been observed during phacoemulsification cataract surgery in some patients treated with alpha-1 blockers including Flomax. Most of these reports were in patients taking the alpha-1 blocker when IFIS occurred, but in some cases alpha-1 blocker had been stopped prior to surgery. It is recommended that male patients being considered for cataract surgery, as part of their medical history, be specifically questioned to ascertain whether they have taken Flomax or other alpha-1 blockers. If so, the patient's ophthalmologist should be prepared for possible modifications to their surgical technique that may be warranted should IFIS be observed during the procedure.

    [November 2005 - Letter - Boehringer Ingelheim]
    [October 2005 - Label - Boehringer Ingelheim]

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