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Hydrochlorothiazide is a custom pharmacy drug, a thiazide diuretic, or simply—a water pill. The major purpose of this drug is to stop the body from absorbing excess salt that can lead to retention of fluid. Hydrochlorothiazide is prescribed for many patients who have borderline to moderate hypertension, or other medical issue that may cause fluid retention.


Hydrochlorothiazide is often given in pill form to many, but can be delivered in other forms if a patient has specific needs; ask your doctor for more information. Follow your doctor's recommendations and directions. Consult with your compounding pharmacist if you have questions during your course of hydrochlorothiazide.


Side effects can differ from patient to patient. If you experience side effects that linger or worsen, contact your doctor. Common side effects seen with hydrochlorothiazide are as follows:

  • Dizziness
  • Muscle Spasm
  • Vomiting
  • Loss of Appetite
  • Constipation
  • Diarrhea
  • Headache

Contact Your Doctor Right Away if You Experience Any of the Following:

  • Jaundice
  • Shortness of Breath
  • Eye Pain
  • Feeling Like You Could Pass Out
  • Intense Thirst
  • Vomiting
  • Nausea
  • Chest Pain
  • Severe Skin Reactions
  • Abnormal Bleeding

Many other side effects are possible. If you feel any side effect that seems concerning, severe, or dangerous, get immediate medical treatment.

Allergic Reaction:

If you have any signs of an allergic reaction, get emergency medical help immediately. A partial list of some possible signs of an allergic reaction is below:
Swelling of the Face, Throat, Tongue, or Lips
Difficulty Breathing

NOTE: Try to drink an adequate amount of fluids while taking hydrochlorothiazide, especially during exercise. Drinking too little, and also drinking too much, either can be a problem. Ask your doctor for more clarification on this.


Consult with your doctor before beginning to use hydrochlorothiazide.

Drinking alcohol while taking hydrochlorothiazide may cause unwanted side effects.

There are many conditions, diseases, and possible drug combinations that could make the use of hydrochlorothiazide inadvisable. Do not take hydrochlorothiazide until you have consulted with your doctor and he or she has decided this drug is necessary for your medical condition and that you are healthy enough to use it.

  • "It is rare to find health professionals who are so willing to educate the patient on what they need to know."

    Clair C. | West Hollywood, CA