Cialis Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Less common
- Arm, back, or jaw pain
- blurred vision
- chest pain, discomfort, tightness, or heaviness
- chills
- cold sweats
- confusion
- dizziness
- fainting
- faintness or lightheadedness when getting up suddenly from a lying or sitting position
- fast or irregular heartbeat
- headache
- hearing loss
- increased erection
- nausea
- nervousness
- pain or discomfort in the arms, jaw, back, or neck
- pounding in the ears
- slow or fast heartbeat
- spontaneous penile erection
- sweating
- unusual tiredness or weakness
- vomiting
Rare
- Painful or prolonged erection of the penis
Incidence not known
- Blindness
- blistering, peeling, or loosening of the skin
- cough
- cracks in the skin
- decrease or change in vision
- diarrhea
- difficulty with speaking
- double vision
- fast, irregular, pounding, or racing heartbeat or pulse
- headache, severe and throbbing
- hives or welts, itching, skin rash
- inability to move the arms, legs, or facial muscles
- inability to speak
- joint or muscle pain
- loss of heat from the body
- numbness or tingling of the face, hands, or feet
- red skin lesions, often with a purple center
- red, irritated eyes
- red, swollen skin
- redness of the skin
- redness or soreness of the eyes
- scaly skin
- slow speech
- sores, ulcers, or white spots in the mouth or on the lips
- stomach pain
- sudden cardiac death
- swelling of the feet or lower legs
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More common
- Belching
- heartburn
- indigestion
- stomach discomfort, upset, or pain
Less common
- Bloody nose
- body aches or pain
- burning, crawling, itching, numbness, prickling, “pins and needles”, or tingling feelings
- burning, dry, or itching eyes
- burning feeling in the chest or stomach
- congestion
- difficulty with moving
- difficulty with swallowing
- dry mouth
- dryness or soreness of the throat
- excessive eye discharge
- eye pain
- feeling of constant movement of self or surroundings
- feeling of warmth, redness of the face, neck, arms and occasionally, upper chest
- fever
- hoarseness
- lack or loss of strength
- loose stools
- muscle aching, cramping, or stiffness
- neck pain
- pain in the arms or legs
- pain or burning in the throat
- redness, pain, swelling of the eye, eyelid, or inner lining of the eyelid
- reduced sensitivity to touch
- runny or stuffy nose
- sensation of spinning
- sleepiness or unusual drowsiness
- stomach upset
- swelling of the eyelids
- swelling or puffiness of the eyes or face
- swollen joints
- tearing
- tender, swollen glands in the neck
- tenderness in the stomach area
- trouble with sleeping
- upper stomach pain
- voice changes
- watering of the eyes
Rare
- Changes in color vision
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
Cialis Drug Interactions
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.
- Amyl Nitrite
- Boceprevir
- Erythrityl Tetranitrate
- Isosorbide Dinitrate
- Isosorbide Mononitrate
- Nitroglycerin
- Pentaerythritol Tetranitrate
- Propatyl Nitrate
- Riociguat
- Telaprevir
Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Alfuzosin
- Atazanavir
- Bunazosin
- Clarithromycin
- Cobicistat
- Darunavir
- Erythromycin
- Fosamprenavir
- Indinavir
- Itraconazole
- Ketoconazole
- Lopinavir
- Moxisylyte
- Nefazodone
- Phenoxybenzamine
- Phentolamine
- Prazosin
- Ritonavir
- Saquinavir
- Simeprevir
- Simvastatin
- Tamsulosin
- Telithromycin
- Terazosin
- Tipranavir
- Trimazosin
- Urapidil
Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Doxazosin
- Rifampin
- Silodosin
Other Interactions
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following is usually not recommended, but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco.
- Grapefruit Juice
Using this medicine with any of the following may cause an increased risk of certain side effects but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco.
- Ethanol
Other Medical Problems
The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:
- Abnormal penis, including curved penis and birth defects of the penis (eg, angulation, cavernosal fibrosis, or Peyronie’s disease) or
- Leukemia (blood related cancer) or
- Multiple myeloma (blood related cancer) or
- Sickle-cell anemia (blood disorder)—Use with caution. May increase risk of unwanted side effects (eg, prolonged erection of the penis).
- Age greater than 50 years or
- Coronary artery disease or
- Diabetes or
- Hyperlipidemia (high lipids or fats in the blood) or
- Hypertension (high blood pressure) or
- Low cup to disc ratio (eye condition also called “crowded disc”) or
- Smoking—Use with caution. May increase risk for non–arteritic anterior ischemic optic neuropathy (NAION).
- Angina (severe chest pain) or
- Arrhythmia (irregular heartbeat), uncontrolled or
- Heart attack (within the last 3 months) or
- Heart failure (within the last 6 months) or
- Hypertension (high blood pressure), uncontrolled or
- Hypotension (low blood pressure) or
- Retinal disorders (eye problem) or
- Retinitis pigmentosa (an inherited eye disorder) or
- Stroke, recent history of—Should not be used in patients with these conditions.
- Bleeding disorders or
- Stomach ulcers—Use must be determined by your doctor. May increase your risk of bleeding.
- Heart or blood vessel disease or
- Pulmonary veno-occlusive disease or PVOD (a type of lung disease)—Use with caution. May make this condition worse.
- Kidney disease, mild or moderate or
- Liver disease, mild or moderate—Use with caution. The effects may be increased because of slower removal of the medicine from the body.
- Non–arteritic anterior ischemic optic neuropathy (NAION, serious eye condition) in one or both eyes, history of—Use with caution. May increase your risk of getting NAION again.