Viagra
Uses
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Viagra
is used to treat erectile dysfunction (ED).
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General
Information on Viagra
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Viagra causes smooth muscles in the penis to relax, increasing blood
flow to the penis.
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How
viagra is Taken
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Follow the
directions given to you by your doctor. Take Viagra 1
hour before sexual activity. The manufacturer mentions an
acceptable range of one half hour to four hours that the
medicine can be taken before sexual activity.
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Possible
Side Effects of Viagra
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Side effects of Viagra may include:
- headache
- flushing
- upset stomach, diarrhea
- changes in vision
- Talk to your doctor, if you experience prolonged abnormal,
painful erections.
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Warnings/Precautions
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- Do NOT take this medicine with nitrates.
- Do NOT take with isorbide (medicine used to relieve chest
pains)
- If you have questions about which drugs are nitrates, talk
to you pharmacist.
- Do NOT take this medicine more that once per day.
- Before taking any new medicine, either prescription or
over-the-counter, talk to your doctor or pharmacist.
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Drug
Interactions
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NITRATES
SHOULD NEVER BE COMBINED WITH VIAGRA. Drugs that increase
the effects of this medicine include; cimetidine, diltiazem,
erythromycin, itraconazole (Sporanox), ketoconazole (Nizoral),
metronidazole (Flagyl), sertraline (Zoloft). The following drugs
may decrease the effects of sildenafil:
carbamazepine (Tegretol)
phenytoin (Dilantin)
rifabutin and rifamptin For more information about these
interactions
talk to your doctor or pharmacist.
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Missed
Dose
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| There
is no specific missed dose information for this product.
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Storage
of Viagra
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| Keep
this medication in the container it came in, tightly closed, and
out of reach of children. Store it at room temperature and away
from excess heat and moisture (not in the bathroom). Throw away
any medication that is outdated or no longer needed.
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Pregnancy/Nursing
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| No
available information exists for this category.
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