Alaxan FR is reported to contain Acetaminophen and Ibuprofen [1]. Acetaminophen is generally considered safe to take during your entire pregnancy. Ibuprofen should be taken with caution and avoided in the third trimester [2].
Diclofenac is also an NSAID like Ibuprofen and should be avoided in your third trimester as well [3]. Since you are talking about multiple NSAID drugs, you should definitely work with your doctor to ensure that any medications you are taking fall within safe levels during your pregnancy.
Best wishes!
References:
[1] https://www.mims.com/philippines/drug/info/alaxan%20fr?type=full
[2] https://www.aafp.org/afp/2003/0615/p2517.html
[3] https://en.wikipedia.org/wiki/Diclofenac
To the original poster tin19 about Amoxicillin, it appears to be safe to take during pregnancy. [4]
[4] https://en.wikipedia.org/wiki/Amoxicillin