Apcalis SX 20mg Tablets

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Apcalis SX 20mg Tablets

Generic: Tadalafil or Apcalis SX Tablets

Manufacturer: Ajanta Pharma

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Generic Apcalis SX 20mg tablets or Tadalafil is used for the treatment of erectile dysfunction in man. Beside this, the medicine is also known to treat Benign Prostatic Hyperplasia (BHP). This medicine does not provide any protection against sexually transmitted disease such as HIV, syphilis, etc. It blocks the enzyme, phosphodiesterase type 5 (PDE5) that is present in the body. Tadalafil works by providing blood flow to the penis so that it can achieve erection.

For treating BPH, it blocks the enzyme PDE5. Due to this, smooth muscle in the prostate and bladder gets relaxed. This provides relief from the disease. Some of the common symptoms of BPH are problem in urine flow, weak stream and also the need for frequent urination. 

Additional Information

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Generic Apcalis SX 20mg tablet or Tadalafil belong to the class of drug phosphodiesterase type 5 inhibitor. It is used to treat erectile dysfunction. 

Generic Apcalis SX tablet is manufactured by various pharmaceutical companies, located at various geographical locations. It is available in the market under various brand names such as Cialis, Adcirca (for pulmonary arterial hypertension) and Tadacip (Cipla).  The medicine got approval for the treatment of benign prostatic hyperplasia (BPH) in October 2011. 

Generic Apcalis SX 20mg tablet should be stored at a room temperature that varies from 15 degree centigrade to 30 degree. It should be kept away from light, heat and moisture. The medicine should be kept out the reach of child and pets.

 Mechanism of action: 

Generic Apcalis SX 20mg is used to treat erectile dysfunction. Penile erection takes place due to the filling of the blood. The blood vessels bring blood to the penis and therefore its size increases and more blood enters into the penis.  In addition, the blood vessels are only responsible for taking away the blood present in the penis and hence the size decreases and blood get removed from the penis. 

Sexual stimulation that causes the erection of penis results in the production and release of nitric oxide in it. Now, nitric oxide, with the help of enzyme guanylate cyclase, is responsible for producing cyclic guanosine monophosphate (cGMP). cGMP is known to increase and decrease the size of the blood vessels. The level of cGMP is lowered and destroyed by another enzyme, phosphodiesterase -5. Hence, the blood vessels returns to its normal size, blood leaves the penis and thus erection ends. 

Generic Apcalis SX tablet is also used to treat Benign prostatic hyperplasia (BPH). The enzyme phosphodiesterase-5 is also present in the muscle of the bladder and prostate. This relaxes the muscle and hence it become easy for the urine to pass. It works by reduction in the pressure of the muscle that is present at the opening of the urethra. This opening is responsible for controlling the flow of urine from the bladder.



Generic Apcalis SX tablet is used to treat erectile dysfunction. It is also known to treat Benign Prostatic Hyperplasia. 


Side Effects:

The patient might experience side effects after the intake of drug Generic Apcalis SX tablet such as: 

  • Headache
  • Facial flushing
  • Diarrhoea
  • Flu-like symptoms
  • Nausea
  • Stomach upset
  • Low blood pressure
  • Painful erection
  • Prolonged erection
  • Blurred vision
  • Nasal stiffness
  • Pain in arm 


Drug Interactions: 

Some of the medicine that might interact with generic Apcalis SX tablet are: 

  • Erythromycin
  • Ketoconazole (Nizoral),
  • Itraconazole (Sporanox),
  • Indinavir (Crixivan)
  • Ritonavir (Norvir)
  • Rifampin
  • Carbamazepine
  • Nitroglycerin
  • Isosorbide dinitrate
  • Sordil
  • Isosorbide mononitrate
  • Imdur
  • Ismo Monoket
  • Terazosin (Hytrin)
  • Doxazosin
  • Prazosin
  • Cimetidine
  • St. John’s wort
  • Fosamprenavir
  • Amprenavir
  • Nelfinavir



Initially, the patient should take 10 mg Generic Apcalis SX tablet per day before physical intercourse. This dose can be then increased or decreased slowly on the basis of response that the patient shows after intake of the medicine. If required, the dose can be increased to 20 mg or decreased to 5 mg in a day.

For the treatment of Benign prostatic hyperplasia (BPH), the patient should take 5 mg Generic Apcalis SX tablet. This medicine can be taken with or without food by the patient.


Missed dose:

In case the patient misses the dose, they should consult to the doctor.



If the patient feels that they have taken more medicine, then they should consult to their health care provider. Overdose of medicine might lead to serious side effects to the patient.



  • Before taking Generic Apcalis SX tablet, the patient should tell to the doctor if they are hypersensitive to this medication or have hypersensity with any other medicine.
  • Before taking this medication, inform your doctor if you have any history of fibrosis, angulation, scarring, Peyronie’s disease, prolonged and painful erection, anaemia, pigmentosa, retinitis, leukaemia or myeloma etc.  
  • Generic Apcalis SX tablet might make the patient feel dizzy and also changes vision. Therefore they should avoid the work that requires alertness such as driving, operation of machine, etc.
  • Intake of alcohol or alcoholic beverages should be limited by the patient during the treatment with this medicine.
  • For minimizing the effect of light-headedness and dizziness, the patient should get up slowly if in sitting or lying position from long time.