Lasix from the drug class of loop diuretics does not let the human body to absorb too much salt. Excessive amount of salt can cause various health conditions such as prehypertension, hypertension, edema, kidney function impairment and overload on the heart.

With the help of diuretic a person gets rid of excessive salt which is eliminated naturally in the urine.

Lasix is marketed in the form of tablets in dosage strengths of 20, 40 and 80mg of the active component Furosemide which is approved for use in patients as safe and effective loop diuretic.

Furosemide is an anthramilic acid derivative for oral administration.

Lasix indications:

  • fluid retention (edema) in patients with diagnosed congestive heart failure, liver disease, or a kidney disorder;
  • edema in patients with nephrotic syndrome;
  • hypertension

Lasix is prescribed for different medical conditions including heart failure, hepatic cirrhosis, and renal disease as a single therapy or as an adjunct therapy to manage the cerebral edema to reduce the water in the body.

Some forms of severe hypercalcemia are also treated with Lasix used with other medical agents.


Lasix is contraindicated for patients who cannot urinate properly or have urination problems of various types. It is not used in patients who are too sensitive or responsive to Furosemide or in patients with allergic reactions to the main component.

Pregnant or breast-feeding women are not prescribed Lasix as it may affect their conditions badly.

Lasix dose suggested by a doctor can be corrected during the treatment especially in the beginning of it. The dose correction is necessary to find the best way to help a person and improve the treatment results with the considerations of side effects avoidance.

Larger doses than recommended can significantly impair normal function of the body systems and organs. Large doses taken at once can even result in baldness.

The use of Lasix may not be comfortable for you especially in the first days of the treatment. The medicine causes the frequent need to urinate, so you should be ready for this effect.

The medicine can cause fast dehydration, you should drink the amount of liquid recommended by your doctor. Regular visits to your doctor are usually needed to evaluate the progress of the treatment, change the dose or correct it.

Lasix is a prescription medication that should be taken only to treat certain medical conditions. Do not self-treat yourself or use this medicine for other purposes.

The dose of Lasix should be used once or twice a day as long as your doctor suggests. The last dose of the medicine should not be used just before bed, try to use it at day time to prevent frequent need to urinate at night.

Some patients may be recommended to take mineral supplements during the treatment with Lasix or soon afterward.

You can take Lasix with or without food.

Lasix dose for hypertension is 40 mg taken two times a day. The change in the dose is possible with accordance to the patient’s response.

Lasix dose for edema treatment can start from 20 mg per day and end up to 400-600 mg per day. Edema should be carefully controlled and properly treated to prevent serious health conditions.

Viagra ocular side effects

Viagra may cause serious vision side effects such as retinal dysfunction or complete vision loss. Other most common, but less serious ocular side effects are: blurred vision, high light sensitivity.

Viagra clinical trials demonstrated that ocular side effects happen rarely and like other side effects are dose – related. Higher doses produce more serious side effects. In clinical trials about 3 % of men taking doses of 25-50 mg of Viagra experienced blurred vision, about 11 % of men taking 100 mg doses, and about 50 % of men taking 200 mg of Viagra have vision changes. In patients using more than 600 mg vision changes were detected in practically 100% of cases. Vision changes are explained by the property of Viagra to mildly affect the enzyme PDE6. Larger doses increase the blood concentration of the medication and increase the risk of ocular side effects.

Patients with macular degeneration, diabetic retinopathy, retinitis pigmentosa or other retinal disease should consult a doctor before using Viagra. Remember that Viagra may cause complete vision loss in one or both eyes, so if you have any eye conditions, do visit a doctor.

Viagra side effects

The FDA approved Viagra use in men with erectile dysfunction only after several clinical trials. The use of Viagra was estimated in over 3,700 patients (19 to 87 years of age). In these placebo-controlled trials, only 2.5% of males from Viagra group stopped the treatment due side effects occurrence in comparison with 2.3% from placebo group. These numbers show that Viagra is well-tolerated by the majority of patients and the medication causes no or minor side effects in most men. It was detected that the incidence of side effects has been dose-dependent, so a patient should take only the dose prescribed for him and never exceed it to avoid possible side effects.

Viagra should be taken only after a doctor’s consultation. The medication will not cause serious side effects if you take it properly.

Some patients with certain conditions should be especially careful. Some health diseases may increase the possibility of Viagra side effects.

Common Viagra side effects may include:

  • warmth or redness in the face, neck, or chest;
  • stuffy nose;
  • headache;
  • upset stomach;
  • back pain of muscle pain.

Serious side effects happen rarely, still if they occur a patient should immediately seek medical help. These severe side effects include:

  • sudden hearing loss;
  • chest pain;
  • irregular, fast heartbeat, tachycardia;
  • swelling;
  • shortness of breath;
  • fainting;
  • allergic reactions;
  • sudden vision loss.
  • painful prolonged penis erection;

Viagra administration and effect

Viagra effect depends on the physical mechanism of erection – a person should be sexual stimulated for the medication to start working. Sexual stimulation provides the release of certain chemicals in the body which are necessary for Sildenafil action.

Viagra should be used as prescribed by a doctor. Follow the doctor’s recommendations and use the dose adjusted for you. Any dose changes should be made only after the consultation with your doctor. The dose choice depends on the individual response of a patient and other unrelated conditions he may have.

Viagra is taken only when needed, 30 minutes – 1 hour before sexual activity. The medication may work within 15 minutes in some patients. A person should notice how the drug works for him individually.

The medication may be taken up to 4 hours before sex. Viagra max frequency of using is one dose per day.

Viagra effect may be impaired or delayed by food. The medication should be taken on an empty stomach.

Men taking Viagra should not give up if the medication does not work in them for the first time. They may need more attempts.


Before using Viagra (Sildenafil)

Viagra (Sildenafil) is a medication available with a doctor’s prescription. Nowadays anyone can purchase Viagra online. Whether you buy Viagra in a local pharmacy with a prescription or online without prescription it is recommended to use this medication only after a consultation with a doctor. Viagra contradict with certain medical health conditions you may have or with certain drugs you may take. So it is absolutely necessary to visit your doctor to find the right dose for you and if you have other unrelated conditions – undergo special tests.

Viagra is contraindicated with any nitrate-based medications taken for chest pain or heart disease. Viagra is not allowed to be used with other blood pressure lowering medications. Viagra in combination with any blood lowering medication may provoke a serious blood pressure reduction and lead to dangerous health state.

Other unrelated conditions that contradict with Viagra intake include:

  • a recent history of a heart attack, stroke, or congestive heart failure;
  • heart disease or heart rhythm problems;
  • high or low blood pressure;
  • coronary artery disease;
  • liver or kidney impairment;
  • sickle cell anemia, multiple myeloma, leukemia, hemophilia;
  • a stomach ulcer;
  • retinitis pigmentosa;
  • a history of priapism condition (a prolonged and painful penile erection);
  • Peyronie’s disease;
  • traumas to the genital area.

If you have the mentioned above conditions you may need special tests before using Viagra. Your doctor will adjust you the necessary dose which you should not change without talking to your doctor first.

If your doctor recommends you to avoid sexual activity due to your serious cardiovascular status, do not take Viagra.