Cialis Side Effects

Generic Name: tadalafil

Note: This page contains information about the side effects of tadalafil. Some of the dosage forms included on this document may not apply to the brand name Cialis.

Not all side effects for Cialis may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

For the Consumer

Applies to tadalafil: oral tablet

In addition to its needed effects, some unwanted effects may be caused by tadalafil (the active ingredient contained in Cialis). In the event that any of these side effects do occur, they may require medical attention.

You should check with your doctor immediately if any of these side effects occur when taking tadalafil:

Less common
  • Arm, back, or jaw pain
  • blurred vision
  • chest pain or discomfort
  • chest 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
  • nausea
  • nervousness
  • pain or discomfort in the arms, jaw, back, or neck
  • pounding in the ears
  • shortness of breath
  • slow or fast heartbeat
  • sweating
  • unusual tiredness or weakness
  • vomiting
Rare
  • Painful or prolonged erection of the penis
Incidence not known
  • Abdominal or stomach pain
  • 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
  • inability to move the arms, legs, or facial muscles
  • inability to speak
  • itching
  • joint or muscle pain
  • loss of heat from the body
  • numbness or tingling of the face, hands, or feet
  • red irritated eyes
  • red skin lesions, often with a purple center
  • red, swollen skin
  • redness of the skin
  • redness or soreness of the eyes
  • scaly skin
  • skin rash
  • slow speech
  • sores, ulcers, or white spots in the mouth or on the lips
  • sudden cardiac death
  • swelling of the feet or lower legs

Some of the side effects that can occur with tadalafil may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

More common
  • Acid or sour stomach
  • 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
  • increased erection
  • lack or loss of strength
  • loose stools
  • muscle aching or cramping
  • muscle stiffness
  • nasal congestion
  • neck pain
  • 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 nose
  • sensation of spinning
  • sleepiness or unusual drowsiness
  • sleeplessness
  • spontaneous penile erection
  • 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
  • unable to sleep
  • upper abdominal or stomach pain
  • voice changes
  • watering of the eyes
Rare
  • Changes in color vision

For Healthcare Professionals

Applies to tadalafil: oral tablet

Cardiovascular

Cardiovascular side effects have included angina pectoris, chest pain, hypotension, hypertension, myocardial infarction, postural hypotension, palpitations, syncope, and tachycardia.

Dermatologic

Dermatologic side effects have included pruritus, rash, and sweating.

Gastrointestinal

Gastrointestinal side effects have included dyspepsia, diarrhea, dry mouth, dysphagia, esophagitis, gastroesophageal reflux, gastritis, loose stools, nausea, upper abdominal pain, and vomiting.

General

General side effects have included asthenia, face edema, facial flushing, fatigue, and pain in a limb.

Genitourinary

Genitourinary side effects have included increased erection and spontaneous penile erection.

Hepatic

Hepatic side effects have included abnormal liver function tests such as an increased GGTP.

Musculoskeletal

Musculoskeletal side effects have included back pain or myalgia, arthralgia, and neck pain.

Respiratory

Respiratory side effects have included nasal congestion, dyspnea, epistaxis, pharyngitis, nasopharyngitis, upper respiratory tract infection, and bronchitis.

Nervous system

Nervous system side effects have included headache, dizziness, hypesthesia, insomnia, paresthesia, somnolence, migraine and vertigo. Postmarketing experience has included seizure and seizure recurrence and transient global amnesia.

Ocular

Ocular side effects have included blurred vision, changes in color vision, conjunctivitis (including conjunctival hyperemia), eye pain, increased lacrimation, and swelling of the eyelids.

Non-arteritic anterior ischemic optic neuropathy (NAION), a cause of decreased vision including permanent loss of vision, has been reported rarely postmarketing in temporal association with the use of phosphodiesterase type 5 (PDE5) inhibitors, including tadalafil.

Other

Other side effects have included cases of sudden decrease or loss of hearing reported postmarketing in temporal association with the use of PDE5 inhibitors, including tadalafil (the active ingredient contained in Cialis) In some cases, medical conditions and other factors were reported that may have also played a role in the otologic adverse events. In many cases, medical follow-up information was limited. It is not possible to determine whether these reported events are related directly to the use of tadalafil, to the patient's underlying risk factors for hearing loss, a combination of these factors, or to other factors.

Hypersensitivity

Hypersensitivity side effects have included Stevens-Johnson syndrome and exfoliative dermatitis.

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. Drugs.com does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.

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