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Kidney problems: If you have poor kidney function you may need lower doses of this medication. Kidney disease or reduced kidney function may cause this medication to build up in the body, causing side effects.

If you have kidney problems, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.

Liver function: If you have poor liver function you may need lower doses of this medication. Liver disease or reduced liver function may cause this medication to build up in the body, causing side effects. If you have liver problems, viagra pills for sale walmart discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed. Nitrate-containing medications: Sildenafil should never be taken with any medications that

contain

If use of a nitrate-containing medication is considered medically necessary, you must wait 48 hours after the last dose of sildenafil before taking a nitrate, and only under close medical supervision. Penis deformation: As with other medications for erectile dysfunction, men with an anatomical deformation of the teva viagra cost penis such as angulation, cavernosal fibrosis, or Peyronie's disease should be closely monitored by their doctors if they take this medication. Prolonged erection: If an erection lasts longer than 4 hours (a rare occurrence), seek immediate medical assistance.

If this condition is not treated quickly, tissue damage and permanent loss of the ability to have an erection could result. Prostate problems: Tell your doctor if you are taking medications, such as alpha-blockers (e.g., doxazosin), to treat prostate problems, as the combination of these medications with sildenafil may add to the blood pressure-lowering effect of these medications. Sexually transmitted infections: Sildenafil does not protect against sexually transmitted infections such as HIV. Vision problems/eye conditions: If you experience a sudden loss of vision in one or both eyes or other vision related problems, contact your doctor immediately.

While in some cases the condition may improve over time, it can also be permanent. This rare condition is more likely viagra super active plus to occur if you have heart disease, high blood pressure, high cholesterol, diabetes, or eye problems, are more than 50 years old, or if you smoke.

If you have any eye conditions, such as retinitis pigmentosa or non-arteritic anterior ischemic optic neuropathy (NAION), tell your doctor. Pregnancy and breast-feeding: Sildenafil is not intended for use by women. Children: Sildenafil is not intended for use by children or adolescents under 18 years of age. Seniors: If you are 65 years of age or older, you may need a lower dose of this medication. What other drugs could interact with this medication?

There may be an interaction between sildenafil and any of the following: Grapefruit juice may increase the amounts of sildenafil in the blood. A high-fat meal may reduce the effectiveness of sildenafil. If you are taking any of these medications, speak with your doctor or pharmacist. Depending on your specific circumstances, your doctor may want you to: stop taking one of the medications, change one of the medications to another, change how you are taking one or both of the medications, or leave everything as is.

An interaction between two medications does not always mean that you must stop taking one of them.

Speak to your doctor about how any drug interactions are being managed or should be managed. Medications other than the ones listed above may interact with this medication. Tell your doctor or prescriber about all prescription, over-the-counter (non-prescription), and herbal medications that you are taking. Since caffeine, alcohol, the nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them.

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Clinical particulars 4.1 Therapeutic indications chewable viagra soft tabs 4.2 Posology and method of administration 4.3 Contraindications 4.4 Special warnings and precautions for use 4.5 Interaction with other medicinal products and other forms of interaction 4.6 Fertility, pregnancy and lactation 4.7 Effects on ability to drive and use machines 4.8 Undesirable effects 4.9 Overdose 5.