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Composition for ZYDALIS

Tadalafil(20 mg)

food interaction for ZYDALIS

alcohol interaction for ZYDALIS

pregnancy interaction for ZYDALIS

lactation interaction for ZYDALIS

It can be taken with or without food, but it is better to take Zydalis 20 mg tablet md at a fixed time.
Avoid Zydalis 20 mg tablet md with grapefruit juice.
Tadalafil can lower blood pressure, and combining it with alcohol may further increase this effect.
Zydalis 20 mg tablet md is probably safe to use during pregnancy.
Either animal studies have shown no adverse effect on the fetus, but there is no human studies or animal studies have shown an adverse effect that was not confirmed in human studies. Please consult your doctor.
Unknown. Human and animal studies are not available. Please consult your doctor.


Tadalafil(20 mg)


Zydalis 20 mg tablet md is used to treat erectile dysfunction (inability to achieve or maintain penile erection), symptoms of enlarged prostate gland in male (benign prostatic hyperplasia) such as difficulty while urinating, painful urination and urinary urgency; and increased blood pressure in lungs (pulmonary arterial hypertension).

How it works

Zydalis 20 mg tablet md belongs to a group of medicines called phosphodiesterase type 5 inhibitors. It increases blood flow in the penis by relaxing and widening the blood vessels and helps achieve and maintain erection sufficient for sexual activity. By improving the blood flow to the prostate and relaxing the muscles in the prostate gland and the bladder, Zydalis 20 mg tablet md helps to relieve urinary symptoms. Similarly, relaxation of blood vessels in lung leads to lowering of blood pressure.

Common side effects

Memory loss, Back pain, Diarrhoea, Facial redness, Flushing, Headache, Muscle pain, Nasal congestion, Sneezing, Sore throat, Stomach upset


No substitutes found

Expert advice for ZYDALIS

  • Do not take more than once per day.
  • It's best to take this drug about 1 hour before sexual activity, but you can take it anywhere between 4 hours and 30 minutes before you need it.
  • If you have an erection for more than 4 hours, call a doctor.
  • The drug works best when taken on an empty stomach.
  • Do not take the drug if you are also using a nitrate drug for chest pain or heart problems.
  • Tadalafil may cause dizziness. Do not drive or operate machinery after taking sildenafil.
  • Drinking too much  alcohol before taking tadalafil can temporarily impair the ability to get an erection. To get the maximum benefit from the medicine, it is advised not to drink excessive amounts of alcohol before taking this drug.
  • You should avoid drinking grapefruit juice while taking tadalafil as it may increase the side effects.

Frequently asked questions for ZYDALIS


Q. Tadalafil/ Cialis/ megalis/ tazzle is better than sildenafil/ Viagra or same?
Tadalafil/ Cialis/ megalis/ tazzle and sildenafil/ Viagra both treat erectile dysfunction effectively. The effectiveness may vary with individual taking the medicine. Always consult your doctor regarding its use.
Q. Can I take tadalafil with sildenafil?
Avoid taking tadalafil with sildenafil. Concomitant therapy is not recommended and it may also worsen the side effects caused by individual medicine.
Q. Is tadalafil addictive?
No, tadalafil is not an addictive drug. However some people may develop emotional or psychological dependence on the medicine.
Q. Is tadalafil safe?
If used for approved indication in appropriate doses, tadalafil is relatively safe. Please consult your doctor before taking the drug.
Q. Can I take tadalafil forever?
Please consult your doctor for the dose and duration of the treatment required.
Q. Does tadalafil delays ejaculation, affects sperms, affects fertility, and increases testosterone?
No, tadalafil does not delay ejaculation, and have no effect on sperms, fertility and testosterone.
Q. How long does tadalafil last?
Generally effects of tadalfil lasts up to 36 hours, however the effect may vary depending on the individual taking the medicine.
Q. Can I take tadalafil with metoprolol, lisinopril, prednisone, losartan?
Tadalafil when taken with metoprolol, lisinopril, prednisone, losartan may cause low blood pressure. Please consult your doctor for the change of dose regimen or an alternative drug of choice that may strictly be required.
Q. Can I take tadalafil with high blood pressure?
If you are taking any medicines to treat high blood pressure (antihypertensives), taking tadalafil with antihypertensives may cause low blood pressure. Please consult your doctor for the change of dose regimen or an alternative drug of choice that may strictly be required.


Content on this page was last updated on 28 September, 2016, by Dr. Varun Gupta (MD Pharmacology)