Hydrocodone Acetaminophen 7.5/325 Causing Bad Headache

I was just switched from hydrocodone/acetaminophen 10/325 (which I would take 1 1/2) to the 7.5/325 and I've noticed that about an hour after taking it I get a really bad headache and stomach ache. This never happened when I would take the 10/325. I even tried taking one and a half so it's closer to 10 mgs and the headache is even worse. Does anyone know what is causing the headaches and stomach ache?

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Headaches can be a normal side effect of opiate medications, as reported by the FDA. You may also experience nausea, dizziness, constipation and dry mouth.

You may be experience some withdrawal effects, since your dosage has been lowered and taking one and a half may throw things off even more.

Have you consulted your doctor for a possible solution?

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