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Drug Uses
Caverta is used to treat sexual problems, erectile dysfunction (ED), or impotence. By helping the blood flow into penis the medicine helps to have and maintain erection.
It may also be taken to treat pulmonary arterial hypertension (PAH), i.e. high blood pressure in the main artery carrying blood from the heart to the lungs. Caverta increases blood supply to the lungs and reduces the work content of the heart.
How taken
To use the medicine one needs the doctor’s prescription for it.
Caverta comes as tablets taken orally.
Follow your doctor’s instructions on how to use the medicine. The doses depend on your health state and reaction to the medicine. The doctor may increase them if necessary. Generally, it’s taken once a day 30 minutes-4 hrs before sexual intercourse, average and the most effective time is 1 hr.
For ED:
The average dose is 50 mg once a day. The doctor can ask you to start taking more (100 mg) or less (25 mg). Men over 65 should start from a smaller dose (25 mg). For those taking HIV protease inhibitors the average dose is 25 mg as well.
For PAH: about 20 mg 3 times a day with a 4-6 hrs interval.
Caverta starts working in half an hour after it’s taken and last up to 4 hrs.
Sexual stimulation is necessary in order to achieve the necessary effect.
1 The medicine can be used only from the doctor’s approval.
2 The medicine is for MEN only and is not supposed to be taken by either children or women.
3 Caverta doesn’t protect form diseases transmitted via sexual contact (HIV, for example).
4 Try not to drink grapefruit juice and eat grapefruit when taking the medicine.
5 This medicine is not to be taken if you use any nitrates, nitroprusside or nitroglycerin or any medications containing butyl or amyl nitrate.
6 Tell the doctor if you are using any medicines at the moment.
7 If you turn to be allergic to Caverta, do not use it any more.
8 While having sex if any side effects are experienced, stop it and consult with the doctor.
9 The effect of the dose may be less effective if a high fat meal is taken.
10 Do not take more of the medicine than prescribed, do not change doses yourself.
11 Before having any kind of medical treatment, make sure the specialists know about the medicine you are taking.
12 Alcohol drinks or other medicines taken together with Caverta may aggravate side effects.
13 Do not do anything that may be life threatening before you know how your body reacts to the medicine.
14 The doctor should know if you are taking any of the following:
Nitrate-based medicines
Medications for impotence
Azole antifungals
HIV protease inhibitors
Medications for blood pressure
Additional supervision will be needed.
15 Inform the doctor of any specific medical conditions of yours including the following ones:
Any allergies
Sickle cell anemia
Priapism (if ever had)
Problems with bleeding
Eye problems
Kidney/liver/heart/blood pressure/stomach problems
Penis problems
16 Elder people are more subject to having side effects.
17 The medicine is t be taken by the one it’s prescribed to and to treat the condition it’s prescribed for.

Side effects
Giddiness, headache, diarrhea, pain in the chest, muscles, changes in vision, sneezing, runny nose, sleep disturbance- if these symptoms tend to be continuous and troublesome, check with the doctor.
Caverta may sometimes cause some change in heart rhythm which may lead to heartbeat irregularities. Consult with your doctor about this possibility.
The medicine may also cause an allergy (though rarely) the symptoms of which are itching, unusual giddiness, rash, troubled breathing.
Vision loss, confusion, pain in the bladder, itching, urine with blood, eye bleeding, numbness may also be considered a serious side effect demanding prompt medical help.
Cases of priapism (persistent (more than 4 hrs) and painful erection) have been observed. Call the emergency immediately as this condition may lead to permanent impotence.
In case of an overdose, call the emergency immediately. Signs of an overdose: priapism, giddiness, fainting.
  • Keep away from heat, cold, light and damp places
  • Keep away from children
  • Store at room temperature
  • Dispose of an outdated medicine