ZIAGEN is the brand name for abacavir sulfate, a synthetic carbocyclic nucleoside analogue with inhibitory activity against HIV-1. The chemical name of abacavir sulfate is (1S,cis)-4-[2-amino-6-(cyclopropylamino)-9#-purin-9-yl]-2-cyclopentene-1-methanol sulfate (salt) (2:1). Abacavir sulfate is the enantiomer with 1S, 4R absolute configuration on the cyclopentene ring. It has a molecular formula of (C14H18N6O)2 H2SO4 and a molecular weight of 670.76 daltons.


Abacavir sulfate is a white to off-white solid with a solubility of approximately 77 mg per mL in distilled water at 25°C. It has an octanol per water (pH 7.1 to 7.3) partition coefficient (log P) of approximately 1.20 at 25°C.
ZIAGEN tablets are for oral administration. Each tablet contains abacavir sulfate equivalent to 300 mg of abacavir as active ingredient and the following inactive ingredients: colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose, and sodium starch glycolate. The tablets are coated with a film that is made of hypromellose, polysorbate 80, synthetic yellow iron oxide, titanium dioxide, and triacetin.
ZIAGEN oral solution is for oral administration. Each milliliter (1 mL) of ZIAGEN oral solution contains abacavir sulfate equivalent to 20 mg of abacavir (i.e., 20 mg per mL) as active ingredient and the following inactive ingredients: artificial strawberry and banana flavors, citric acid (anhydrous), methylparaben and propylparaben (added as preservatives), propylene glycol, saccharin sodium, sodium citrate (dihydrate), sorbitol solution, and water.

Usage:


What are the possible side effects of abacavir (Ziagen)
Stop using abacavir and call your doctor at once if you have symptoms of an allergic reaction from two or more of these specific side effect groups:
Group 1 - fever;
Group 2 - rash;
Group 3 - nausea, vomiting, diarrhea, stomach pain;
Group 4 - general ill feeling, extreme tiredness, body aches;
Group 5 - shortness of breath, cough, sore throat.
Once you have had an allergic reaction to abacavir, you must never use it again. If you stop taking abacavir for any reason, talk to your doctor before you start taking the medication...
What are the precautions when taking abacavir sulfate (Ziagen)
See also Warning and How to Use sections.
Before taking abacavir, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver problems (such as hepatitis B or C, or cirrhosis), kidney problems, alcohol use.
Abacavir may increase your risk of a heart attack. Discuss the risks and benefits of treatment with your doctor and ways to lower your risk of heart disease. Tell your doctor if you have heart problems, if you smoke, or if you have other conditions that increase your risk of heart...