Crixivan

Check with your doctor before using any drug for erectile dysfunction (male impotence), such as Cialis, Levitra, or Viagra while on Crixivan. Combining an erectile dysfunction drug with Crixivan increases the risk of side effects, such as low blood pressure, vision problems, and a dangerously prolonged erection. If an erection lasts more than 4 hours, seek medical help immediately to avoid permanent damage to the penis.

Avoid drinking grapefruit juice while taking Crixivan. This kind of juice can reduce the drug's effectiveness.

Be sure to tell your doctor and pharmacist about all medications you are taking, both prescription and over-the-counter. Alert them, too, when you stop taking a medication.

Special information if you are pregnant or breastfeeding

The effects of Crixivan during pregnancy have not been adequately studied. If you are pregnant or plan to become pregnant, tell your doctor immediately. Do not breastfeed your baby. HIV appears in breast milk and can infect a nursing infant.

Recommended dosage

ADULTS

The recommended dose of Crixivan is 800 milligrams (usually two 400-milligram capsules) every 8 hours. Your doctor may lower the dose to 600 milligrams every 8 hours if you have mild-to-moderate liver problems due to cirrhosis. The dose will also need adjustment if you are taking Rescriptor, Mycobutin, Nizoral, Sporanox, or Videx.

CHILDREN

Crixivan is more likely to cause kidney stones in children than in adults. If the doctor finds it necessary to prescribe Crixivan anyway, dosage is calculated according to the size of the child.

Overdosage

Any medication taken in excess can have serious consequences. If you suspect an overdose, seek emergency medical treatment immediately.

• Symptoms of Crixivan overdose may include:
  Back pain, blood in urine, diarrhea, kidney stones, nausea, vomiting