ATOVAQUONE - Watsons Health





Description: Atovaquone is an antiparasitic drug that is used to treat pneumocystis jiroveci.

Atovaquone is an antiparasitic drug that is used to prevent and treat pnemocystis jiroveci.

How to use Atovaquone

Shake the bottle thoroughly before use, use a measuring spoon or device to yield a dose.

For the treatment of pneumocystis jiroveci, take this medication by mouth with food, usually 2 times daily for 21 days. For the prevention of pneumocystis jiroveci, take this medication once a day with food as directed.  Observe proper intervals and dosages for the best treatment outcome.  Observe a constant 12 hour interval if you are taking this drug twice a day, and take the same drug at the same schedule everyday consistently when you ar taking this medication once a day.

Finish days of medication as prescribed, even if symptoms disappear after a few days. Infection may recur if the medications are stopped abruptly.

Side effects range from mild to serious.  Consult your doctor if you feel the following symptoms: stomach upset/pain, nausea, vomiting, diarrhea, constipation, loss of appetite, headache, dizziness, trouble sleeping, fever, sweating, cough, runny nose, or a strange taste in the mouth, mental/mood changes (e.g., depression, anxiety), unusual weakness, shortness of breath, vision changes, change in the amount of urine, unusual bleeding/bruising, dark urine, yellowing eyes/skin, severe stomach/abdominal pain, persistent nausea/vomiting.

Contact your doctor if you experience allergic reactions (rash, itching, swelling of the face/throat, trouble breathing) or symptoms mentioned.


Inform your doctor of your allergies, including food and drug allergies, the medications you are currently taking and your medical history, especially of: lung problems, liver disease, stomach disorders (e.g., long-term diarrhea, malabsorption syndrome).

Avoid activities that require alertness as this drug can make you dizzy.

Pregnant and breastfeeding women must consult their doctor first before using this medication.



This drug may interact with other prescription, nonprescription/herbal products.  Tell your doctor the products you are taking especially of: rifamycins (e.g., rifampin, rifabutin).


Seek emergency medical help immediately if overdose is suspected.

Missed Dose: Take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

Storage: Store at room temperature, away from light and moisture. Do not store in the bathroom. Keep all medicines away from children and pets. Do not freeze this medication. Do not flush in the toilet or drain the sink, discard drug properly.

Related Articles


Rilmenidine is an antihypertensive agent that is centrally-acting. It works by activating the central receptors of imidazoline and has an [...]


Quinapril and hydrochlorothiazide both decrease blood pressure via different but complementary mechanisms. Quinapril, a prodrug of quinaprilat, is an ACE [...]


Norethisterone has the usual effects of a progestogen and transforms the endometrium from the secretory to the proliferative process. It [...]