
Testosterone and Viagra when taken together do not produce any known reactions or serious complications. Taking testosterone can help treat men with low testosterone to improve sexual drive, but it cannot treat erectile dysfunction. Taking Viagra can help treat erectile dysfunction but does not improve sexual desire. Both testosterone and Viagra can be taken, but they both treat different problems. Either one can’t be used to treat both lack of sexual drive and erectile dysfunction. If a person has only erectile dysfunction with normal sexual drive, combining Viagra and testosterone has no added benefits, just Viagra would suffice. Some studies have shown that Viagra may increase testosterone levels marginally but may not be significant enough to treat low testosterone levels.
What is Viagra?
Sildenafil (Viagra) is a medication used to treat erectile dysfunction in men. Sildenafil increases the blood flow to the penis, causing an erection. Viagra as such doesn’t cure erectile dysfunction permanently and it doesn’t increase sexual desire/drive. The effects usually wear away in a few hours. Sildenafil may also be used to improve exercise tolerance in adults with pulmonary arterial hypertension (increased pressure in the blood vessels carrying blood to the lungs). Sildenafil is usually taken orally in the form of pills or suspensions.
What is testosterone?
Testosterone is a primary male sex hormone. It is responsible for the development of male reproductive organs, secondary sexual characteristics, increased bone/muscle mass, and sexual drive (libido). Testosterone replacement therapy is used to treat men with low testosterone levels as the functions of testosterone do not occur properly. Testosterone may be administered in the form of pills, injections, or patches. This would help improve the symptoms that occur due to low testosterone in the body.
What is erectile dysfunction?
Erectile dysfunction (ED) is the inability to attain or maintain an erection firm enough to be able to engage in sexual intercourse. This condition is also, sometimes, referred to as impotence. ED usually occurs due to decreased blood flow to the penis, which can occur due to psychological or medical conditions or as a side effect of certain medications.
Common causes of erectile dysfunction include:
- Psychological stress, depression, and anxiety
- Medications, like beta-blockers (Propranolol) and antidepressants
- Heart disease
- Hypertension (high blood pressure)
- Neurological disorders like Parkinson’s disease and multiple sclerosis
- Alcoholism
- Drug abuse
- Smoking
- Sleep disorders
- Damage to the pelvic region
- Scar tissue formation in the penis

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Low Testosterone (Low-T)
Low testosterone (low-T) can be caused by conditions such as type 2 diabetes, obesity, liver or kidney disease, hormonal disorders, certain infections, and hypogonadism. Signs and symptoms that a person may have low-T include insomnia, increased body fat, weight gain, reduced muscle, infertility, decreased sex drive, depression, and worsening of congestive heart failure or sleep apnea. Low-T can be treated with testosterone therapy in the form of gels, injections, pellets, or skin patches. Side effects of testosterone treatment include acne, anxiety, hair loss, headache, and change in sex drive (libido).Low Testosterone
What causes low testosterone (low T)? Learn about low testosterone symptoms in men. Discover low testosterone treatment and the signs of low testosterone.Low Testosterone Quiz
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Find out from WebMD what you can do to raise your testosterone levels naturally, including changes to your diet and lifestyle.Viagra (sildenafil)
Sildenafil (Viagra) is a medication prescribed for the treatment of impotence (erectile dysfunction, ED) caused by medical or psychological conditions. Side effects, drug interactions, warnings and precautions, and patient safety information should be reviewed prior to taking any medication.
Testim 1% (testosterone gel)
Testim 1% (testosterone gel) is a prescription medicine that contains testosterone. Testim is used to treat adult males who have low or no testosterone due to certain medical conditions. Testim is a controlled substance (CIII) because it contains testosterone that can be a target for people who abuse prescription medicines. Virilization has been reported in children who were secondarily exposed to testosterone gel. Children should avoid contact with unwashed or unclothed application sites in men using testosterone gel. Serious side effects include worsened symptoms of an enlarged prostate.