Viramune - elevated liver enzymes
Jun 10, 2007
I live in England and I've been taking Viramune for six weeks. One month ago (two weeks after starting Viramune) I came to India for a work assignment. I went to a local hospital today, for liver tests, and got the following:
SGPT/ALT (P5P,IFCC) = 127 IU/ml ref range: 30 - 65 SGOT/AST (P5P,IFCC) = 212 IU/ml ref range: 15 - 37
I'm surprised in that six weeks ago, my CD4s were only 189, which should put me at less risk of elevated liver enzymes as that's well below 400 for a man level.
One complication is that, despite being really careful, I got a stomach bug and had to take the following for 5 days, ending last Tues:
Ciprofloxacin 500mg twice daily Tinidazole 600mg twice daily
I read the following on Wikipedia re Cypro: "The toxicity of drugs that are metabolised by the cytochrome P450 system is enhanced by concomitant use of some quinolones." Viramune is metabolised by cytochrome P450, right?
Also, I take 50mg/day ritalin for ADD, which I read also effects the P450 thing.
1. Should I discontinue Viramune (I brought spare Sustiva, but dread going back on that s**t because it made me a total zombie. I hated it!)
2. If these numbers are partly due to the quinolone intake (God I hope so), how long before the enzymes go back down, in order to the enzymes re-tested?
I have no other side-effects WHATSOEVER! I feel totally fine, no rash, no jaundice, no appetite probs. Nada.
Also I have not had any alcohol in 4 weeks. I did, however, have one night of heavy drinking one week into starting Viramune (5 weeks ago).
Many thanks for your advice.
Response from Dr. Henry
Mild/modest liver enzyme elevations due to nevirapine can be seen and generally will stabilize or improve. If you are otherwise feeling fine I would generally try to continue to monitor the liver enzymes and if persistently elevated or increase further consider an evaluation for other causes (ie viral hepatitis). KH
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