Suggest Treatment For Petit Mal Seizures
Changing Carbamazepine into Valproic Acid
Detailed Answer:
Hello. I have gone through your question and understand your concern.
Since your friend is affected by Abscence Seizure (Petit Mal) she should be under an antiepileptic drug for sure. Carbamazepine in this case is prescribed within normal dosage range, and it is responsible that your friend is free of seizures.
Pneumonia in a very few cases is an adverse effect in patients using Carbamazepine for a long time. Still, this eventuality is difficult to ascertain. This may just be one of the causes.
Still, in such eventuality, you can't rule out that Carbamazepine is not responsible for the pneumonia. Following this reasoning, I would switch Carbamazepine to another drug, such as Valproic Acid, which is the first choice in Abscence Seizures. It has more adverse effect than Carbamazepine, but pneumonia is not included.
Hope this answers your questions, please feel free for further questions.
Wishing your friend good health.