When Oral Medications May Not Be Safe

 Before taking any 시알리스 medication for erectile dysfunction, first, ask your doctor for approval. Erectile dysfunction medications may not work or be dangerous if:

You take 시알리스 구입 medications, commonly prescribed for chest pain (angina), such as nitroglycerin (Nitro-Dur, Nitrostat, others), isosorbide mononitrate (Monoket), and isosorbide dinitrate

You have very low blood pressure (hypotension) or uncontrolled high blood pressure (hypertension)

You have severe liver disease

You have kidney disease that requires dialysis

Side effects

Most men who take 시알리스 구매 oral erectile dysfunction medications are not affected by side effects. When side effects do occur, they may include the following:

redness

Headache

Indigestion

Visual changes, such as a blue tint to vision, sensitivity to light, or blurred vision

Nasal congestion or with liquid secretions

Back pain

Rarely, more serious side effects may occur, including the following:

Hearing loss or vision loss. Some men have had sudden hearing loss or vision loss after taking one of these drugs. However, it is unclear whether the vision or hearing loss was caused directly by the drug or by a pre-existing condition. If you are taking an oral medication for erectile dysfunction and have sudden hearing or vision loss, seek immediate medical attention.

An erection that does not go away on its own. Called priapism, this rare condition can be painful and requires medical treatment to prevent damage to the penis. If you have an erection that lasts more than four hours, seek immediate medical attention.

Buying Oral Erectile Dysfunction Drugs Online

Erectile dysfunction treatments are big business, and online scams abound. If you buy medicines online:

Verify that an online pharmacy is legitimate. Never order medication from an online pharmacy if there is no way to contact the pharmacy by phone, if the prices seem too good to be true, or if you are told that a prescription is not necessary. Some illegal businesses sell counterfeit versions of legitimate medications, which may be ineffective or dangerous. In the United States, the National Association of Boards of Pharmacy can tell you if an online pharmacy is licensed and in good standing.

Make sure you get the correct prescription and dosage. When you order medications, and when you receive them in the mail, make sure they are the exact dosage and type prescribed by your doctor.

Don't be fooled into buying "herbal viagra" and never take any medication that claims to be "herbal" or an over-the-counter equivalent of an oral erectile dysfunction medication. These are not an effective alternative, and some contain harmful substances.