What painkillers can you use?
NSAID's like Ibuprofen, Diclofenac and Naproxen are the most effective painkiller against cramps. If you cannot obtain one of those, Paracetamol also helps.
Please read the patient instructions of the painkillers you obtained to know the maximum doses you can use.
Do NOT use anti-spasmodics like Buscopan. As the misoprostol makes your uterus contract in order to expell the pregnancy, anti-spasmodics might interfere with the abortion process.