Common Cialis Side Effects


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

Therapeutic Response Decreased (368)
Headache (343)
Vision Blurred (257)
Back Pain (243)
Myalgia (121)
Flushing (108)
Dizziness (103)
Pain In Extremity (94)
Visual Impairment (84)
Visual Acuity Reduced (82)
Dyspepsia (71)
Optic Ischaemic Neuropathy (68)
Nasal Congestion (67)
Visual Disturbance (59)
Nausea (56)
Insomnia (55)
Tinnitus (54)
Arthralgia (52)
Muscle Spasms (51)
Hypertension (50)

➢ 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.

Cialis Side Effects Reported to FDA



Cialis Side Effect Report#9986789
Visual Impairment, Eye Swelling, Erythema, Abdominal Pain Upper
This is a report of a male patient (weight: NA) from TR, suffering from the following health symptoms/conditions: erectile dysfunction,benign prostatic hyperplasia, who was treated with Cialis (dosage: NA, start time:
Feb 11, 2014), combined with: NA. and developed a serious reaction and side effect(s): Visual Impairment, Eye Swelling, Erythema, Abdominal Pain Upper after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Cialis treatment in male patients, resulting in Visual Impairment side effect.
Cialis Side Effect Report#9970350
Back Pain, Muscle Fatigue
This report suggests a potential Cialis Back Pain side effect(s) that can have serious consequences. A 39-year-old male patient (weight: NA) from US was diagnosed with the following symptoms/conditions: NA and used Cialis (dosage: 1 Pill) starting NS. After starting Cialis the patient began experiencing various side effects, including: Back Pain, Muscle FatigueAdditional drugs used concurrently: NA. Although Cialis demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Back Pain, may still occur.
Cialis Side Effect Report#9965477
Pharyngeal Oedema, Dyspnoea, Swollen Tongue, Lip Swelling, Dysarthria, Speech Disorder, Feeling Abnormal, Muscle Strain
This Pharyngeal Oedema problem was reported by a consumer or non-health professional from US. A 60-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: erectile dysfunction. On
Nov 22, 2013 this consumer started treatment with Cialis (dosage: 5 Mg, Qd). The following drugs were being taken at the same time:
  • Lantus (36 U, Each Evening)
  • Novolog (10 U, Other)
  • Simvastatin (40 Mg, Qd)
When using Cialis, the patient experienced the following unwanted symptoms/side effects: Pharyngeal Oedema, Dyspnoea, Swollen Tongue, Lip Swelling, Dysarthria, Speech Disorder, Feeling Abnormal, Muscle StrainAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Pharyngeal Oedema, may become evident only after a product is in use by the general population.
Cialis Side Effect Report#9965476
Postoperative Thrombosis, Pulmonary Embolism, Arthralgia
This Postoperative Thrombosis side effect was reported by a consumer or non-health professional from US. A 71-year-old male patient (weight:NA) experienced the following symptoms/conditions: benign prostatic hyperplasia,erectile dysfunction,hypertension.The patient was prescribed Cialis (drug dosage: 2.5 Mg, Qd), which was initiated on 2013. Concurrently used drugs: NA..After starting to take Cialis the consumer reported adverse symptoms, such as: Postoperative Thrombosis, Pulmonary Embolism, ArthralgiaThese side effects may potentially be related to Cialis. The patient was hospitalized.
Cialis Side Effect Report#9929912
Visual Impairment
This is a report of a 78-year-old male patient (weight: NA) from AR, suffering from the following health symptoms/conditions: NA, who was treated with Cialis (dosage: NA, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Visual Impairment after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Cialis treatment in male patients, resulting in Visual Impairment side effect.
Cialis Side Effect Report#9921981
Optic Ischaemic Neuropathy
This report suggests a potential Cialis Optic Ischaemic Neuropathy side effect(s) that can have serious consequences. A 63-year-old male patient (weight: NA) from US was diagnosed with the following symptoms/conditions: erectile dysfunction and used Cialis (dosage: 1 Pill As Needed By Mouth) starting
Jan 20, 2010. After starting Cialis the patient began experiencing various side effects, including: Optic Ischaemic NeuropathyAdditional drugs used concurrently: NA. Although Cialis demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Optic Ischaemic Neuropathy, may still occur.
Cialis Side Effect Report#9921630
Transient Global Amnesia
This Transient Global Amnesia problem was reported by a physician from US. A male patient (weight: NA) was diagnosed with the following symptoms/conditions: erectile dysfunction. On
Jan 18, 2014 this consumer started treatment with Cialis (dosage: NA). The following drugs were being taken at the same time: NA. When using Cialis, the patient experienced the following unwanted symptoms/side effects: Transient Global AmnesiaAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Transient Global Amnesia, may become evident only after a product is in use by the general population.
Cialis Side Effect Report#9915137
Platelet Count Decreased, Blood Bilirubin Increased, Aspartate Aminotransferase Increased, Blood Glucose Increased, Red Cell Distribution Width Increased, Diarrhoea
This Platelet Count Decreased 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: erectile dysfunction.The patient was prescribed Cialis (drug dosage: NA), which was initiated on NS. Concurrently used drugs:
  • Levitra
  • Aciphex (0.5 Df, Each Morning)
  • Pepcid /00706001/ (1 Df, Each Evening)
.After starting to take Cialis the consumer reported adverse symptoms, such as: Platelet Count Decreased, Blood Bilirubin Increased, Aspartate Aminotransferase Increased, Blood Glucose Increased, Red Cell Distribution Width Increased, DiarrhoeaThese side effects may potentially be related to Cialis.
Cialis Side Effect Report#9915120
Flushing, Overdose
This is a report of a 52-year-old male patient (weight: NA) from MX, suffering from the following health symptoms/conditions: erectile dysfunction, who was treated with Cialis (dosage: 5 Mg, Qd, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Flushing, Overdose after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Cialis treatment in male patients, resulting in Flushing side effect.
Cialis Side Effect Report#9912826
Tinnitus, Deafness Unilateral
This report suggests a potential Cialis Tinnitus side effect(s) that can have serious consequences. A 46-year-old male patient (weight: NA) from US was diagnosed with the following symptoms/conditions: erectile dysfunction and used Cialis (dosage: NA) starting
Feb 06, 2014. After starting Cialis the patient began experiencing various side effects, including: Tinnitus, Deafness UnilateralAdditional drugs used concurrently: NA. Although Cialis demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Tinnitus, may still occur.
Cialis Side Effect Report#9911687
Vision Blurred
This Vision Blurred problem was reported by a physician from US. A 68-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: benign prostatic hyperplasia,erectile dysfunction. On
Jan 15, 2014 this consumer started treatment with Cialis (dosage: 5 Mg, Qd). The following drugs were being taken at the same time: NA. When using Cialis, the patient experienced the following unwanted symptoms/side effects: Vision BlurredAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Vision Blurred, may become evident only after a product is in use by the general population.
Cialis Side Effect Report#9911667
Delusion, Delusional Perception, Abnormal Behaviour, Persecutory Delusion
This Delusion side effect was reported by a consumer or non-health professional from FR. A 69-year-old male patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Cialis (drug dosage: 20 Df, Weekly (1/w)), which was initiated on NS. Concurrently used drugs: NA..After starting to take Cialis the consumer reported adverse symptoms, such as: Delusion, Delusional Perception, Abnormal Behaviour, Persecutory DelusionThese side effects may potentially be related to Cialis. The patient was hospitalized.
Cialis Side Effect Report#9911654
Hallucinations, Mixed, Delusion, Jealous Delusion, Persecutory Delusion, Abnormal Behaviour
This is a report of a 71-year-old male patient (weight: NA) from FR, suffering from the following health symptoms/conditions: NA, who was treated with Cialis (dosage: NA, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Hallucinations, Mixed, Delusion, Jealous Delusion, Persecutory Delusion, Abnormal Behaviour after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Cialis treatment in male patients, resulting in Hallucinations, Mixed side effect.
Cialis Side Effect Report#9906750
Vision Blurred, Hepatic Steatosis
This report suggests a potential Cialis Vision Blurred side effect(s) that can have serious consequences. A male patient (weight: NA) from TR was diagnosed with the following symptoms/conditions: erectile dysfunction and used Cialis (dosage: 20 Mg, Prn) starting 201401. After starting Cialis the patient began experiencing various side effects, including: Vision Blurred, Hepatic SteatosisAdditional drugs used concurrently: NA. Although Cialis demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Vision Blurred, may still occur.
Cialis Side Effect Report#9893870
Optic Ischaemic Neuropathy
This Optic Ischaemic Neuropathy problem was reported by a consumer or non-health professional from GB. A 68-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On 2006 this consumer started treatment with Cialis (dosage: 1 Df, Prn). The following drugs were being taken at the same time: NA. When using Cialis, the patient experienced the following unwanted symptoms/side effects: Optic Ischaemic NeuropathyAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Optic Ischaemic Neuropathy, may become evident only after a product is in use by the general population.
Cialis Side Effect Report#9888752
Back Pain, Pain In Extremity, Musculoskeletal Pain, Dysstasia, Panic Attack, Dizziness, Middle Insomnia, Headache
This Back Pain side effect was reported by a consumer or non-health professional from US. A 51-year-old male patient (weight:NA) experienced the following symptoms/conditions: erectile dysfunction.The patient was prescribed Cialis (drug dosage: NA), which was initiated on
Sep 01, 2013. Concurrently used drugs: NA..After starting to take Cialis the consumer reported adverse symptoms, such as: Back Pain, Pain In Extremity, Musculoskeletal Pain, Dysstasia, Panic Attack, Dizziness, Middle Insomnia, HeadacheThese side effects may potentially be related to Cialis.
Cialis Side Effect Report#9886577
Bladder Cancer
This is a report of a male patient (weight: NA) from US, suffering from the following health symptoms/conditions: erectile dysfunction, who was treated with Cialis (dosage: NA, start time: 2004), combined with:
  • Viagra
  • Xanax
  • Citalopram (40 Mg, Qd)
  • Caverject
and developed a serious reaction and side effect(s): Bladder Cancer after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Cialis treatment in male patients, resulting in Bladder Cancer side effect.
Cialis Side Effect Report#9880714
Visual Field Tests Abnormal
This report suggests a potential Cialis Visual Field Tests Abnormal side effect(s) that can have serious consequences. A 64-year-old male patient (weight: NA) from GB was diagnosed with the following symptoms/conditions: NA and used Cialis (dosage: 5 Mg, Qd) starting NS. After starting Cialis the patient began experiencing various side effects, including: Visual Field Tests AbnormalAdditional drugs used concurrently: NA. Although Cialis demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Visual Field Tests Abnormal, may still occur.
Cialis Side Effect Report#9880712
Vision Blurred, Therapeutic Response Unexpected
This Vision Blurred 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 symptoms/conditions: NA. On NS this consumer started treatment with Cialis (dosage: 5 Mg, Qd). The following drugs were being taken at the same time: NA. When using Cialis, the patient experienced the following unwanted symptoms/side effects: Vision Blurred, Therapeutic Response UnexpectedAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Vision Blurred, may become evident only after a product is in use by the general population.
Cialis Side Effect Report#9880710
Cardio-respiratory Arrest, Loss Of Consciousness
This Cardio-respiratory Arrest side effect was reported by a physician from JP. A 31-year-old male patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Cialis (drug dosage: 10 Mg, Qd), which was initiated on
Dec 21, 2013. Concurrently used drugs: NA..After starting to take Cialis the consumer reported adverse symptoms, such as: Cardio-respiratory Arrest, Loss Of ConsciousnessThese side effects may potentially be related to Cialis.
Cialis Side Effect Report#9865544
Vision Blurred, Off Label Use
This is a report of a 61-year-old male patient (weight: NA) from US, suffering from the following health symptoms/conditions: prostatectomy, who was treated with Cialis (dosage: 5 Mg, Qd, start time: 201401), combined with:
  • Neurontin (2000 Mg, Qd)
  • Prevacid (30 Mg, Qd)
  • Tylenol /00020001/ (1 Df, Qd)
  • Cipro /00697201/ (500 Mg, Bid)
  • Valium /00017001/ (1 Df, Prn)
  • Acidophilus
  • Senna /00142201/
and developed a serious reaction and side effect(s): Vision Blurred, Off Label Use after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Cialis treatment in male patients, resulting in Vision Blurred side effect.
Cialis Side Effect Report#9865529
Cognitive Disorder, Fatigue, Somnolence, Dizziness
This report suggests a potential Cialis Cognitive Disorder side effect(s) that can have serious consequences. A 56-year-old male patient (weight: NA) from CR was diagnosed with the following symptoms/conditions: NA and used Cialis (dosage: NA) starting NS. After starting Cialis the patient began experiencing various side effects, including: Cognitive Disorder, Fatigue, Somnolence, DizzinessAdditional drugs used concurrently: NA. Although Cialis demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Cognitive Disorder, may still occur.
Cialis Side Effect Report#9863506
Vision Blurred, Back Pain
This Vision Blurred problem was reported by a consumer or non-health professional from BR. A 54-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On
Jan 20, 2014 this consumer started treatment with Cialis (dosage: 5 Mg, Qd). The following drugs were being taken at the same time: NA. When using Cialis, the patient experienced the following unwanted symptoms/side effects: Vision Blurred, Back PainAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Vision Blurred, may become evident only after a product is in use by the general population.
Cialis Side Effect Report#9847993
Swelling, Lung Disorder
This Swelling side effect was reported by a consumer or non-health professional from US. A 55-year-old male patient (weight:NA) experienced the following symptoms/conditions: erectile dysfunction.The patient was prescribed Cialis (drug dosage: 1 Per Day Max Once Ddaily Taken By Mouth), which was initiated on NS. Concurrently used drugs: NA..After starting to take Cialis the consumer reported adverse symptoms, such as: Swelling, Lung DisorderThese side effects may potentially be related to Cialis.
Cialis Side Effect Report#9846136
Pancreatic Carcinoma, Suspected Counterfeit Product
This is a report of a 60-year-old male patient (weight: NA) from FR, suffering from the following health symptoms/conditions: NA, who was treated with Cialis (dosage: NA, start time: NS), combined with:
  • Metformin
and developed a serious reaction and side effect(s): Pancreatic Carcinoma, Suspected Counterfeit Product after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Cialis treatment in male patients, resulting in Pancreatic Carcinoma side effect.


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The appearance of Cialis 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 Cialis Side Effects for Women?

Women Side Effects Reports
Off Label Use 7
Dizziness 5
Headache 4
Vision Blurred 4
Accidental Overdose 3
Dyspnoea 3
Mania 3
Amyotrophy 2
Arthralgia 2
Cardiac Tamponade 2

What are common Cialis Side Effects for Men?

Men Side Effects Reports
Therapeutic Response Decreased 368
Headache 338
Vision Blurred 252
Back Pain 243
Myalgia 121
Flushing 108
Dizziness 97
Pain In Extremity 93
Visual Acuity Reduced 81
Visual Impairment 80

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.

    Cialis 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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    Cialis Safety Alerts, Active Ingredients, Usage Information

    NDC 0002-4462
    Type HUMAN PRESCRIPTION DRUG
    Proprietary Name Cialis
    Name Tadalafil
    Dosage Form TABLET, FILM COATED
    Route ORAL
    On market since 20031126
    Labeler Eli Lilly and Company
    Active Ingredient(s) TADALAFIL
    Strength(s) 5
    Unit(s) mg/1
    Pharma Class Phosphodiesterase 5 Inhibitor [EPC],Phosphodiesterase 5 Inhibitors [MoA]

    Cialis Dosage, Warnings, Usage.

    Side Effects reported to FDA: 2975

    Cialis safety alerts: 2007 2005

    Reported deaths: 146

    Reported hospitalizations: 496

    Cialis (tadalafil) October 2007

    Audience: Urologists, other healthcare professionals, consumers

    [Posted 10/18/2007] FDA informed healthcare professionals of reports of sudden decreases or loss of hearing following the use of PDE5 inhibitors Viagra, Levitra, Cialis for the treatment of erectile dysfunction, and Revatio for the treatment of pulmonary arterial hypertension. In some cases, the sudden hearing loss was accompanied by tinnitus and dizziness. Medical follow-up on these reports was often limited which makes it difficult to determine if the loss of hearing was related to the use of one of the drugs, an underlying medical condition or other risk factors for hearing loss, a combination of these factors or other factors. The PRECAUTIONS and ADVERSE REACTIONS sections of the approved product labeling for Viagra, Levitra, and Cialis were revised. FDA is working with the manufacturer to revise the labeling for Revatio.

    [October 18, 2007 - Viagra Information page - FDA]
    [October 18, 2007 - Viagra label - Pfizer]
    [October 18, 2007 - Cialis Information page - FDA]
    [October 18, 2007 - Cialis label - FDA]
    [October 18, 2007 - Levitra Information page - FDA]
    [October 18, 2007 - Levitra label - FDA]

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