I have heard the opposite, methotrexate may not be used as the result is a direct abortion.
Here is one source supporting this. I have seen other sites on which the same morality is upheld.
catholiceducation.org/articles/medical_ethics/me0140.htm
"Of the three commonly performed procedures for addressing ectopic pregnancies, two raise significant moral concerns while the third is morally acceptable.
The first procedure involves a drug called methotrexate, which targets the most rapidly growing cells of the embryo, especially the placenta-like cells which attach the early embryo to the wall of the tube. Some have suggested that methotrexate might preferentially target these placenta-like cells, distinct from the rest of the embryo, so that it could be seen as “indirectly” ending the life of the embryo. Others, however, have noted that these placenta-like cells are in fact a part of the embryo itself (being produced by the embryo, not by the mother), so that the use of methotrexate actually targets a vital organ of the embryo, resulting in his or her death. A significant number of Catholic moralists hold that the use of methotrexate is not morally permissible, because it constitutes a direct attack on the growing child in the tube, and involves a form of direct abortion."
In other words, choose your moralist wisely.
Thank you. And this is why I stated earlier that the USCCB needs to have firm guidelines in place so that everyone involved knows and understands Church teaching. It’s the bishop’s call in the Arizona hospital case; other cases in the U.S. are decided by other bishops, but the USCCB is probably the one who should be developing a protocol to follow.
This is so that if, for example, methotrexate is used, it is clear from the beginning that this is illicit or licit, whatever the USCCB decides or has decided.
The Church teaching that no child should have her life ended by a direct abortion (“killing” the child as a means to an ends) is Truth and is an application of the Universal Law (also called God’s Law) that all human life is sacred. But this doesn’t seem to be enough as it is open to discussion and disagreement when it comes down to exactly what constitutes a direct abortion.
A well-written, comprehensive protocol would provide the information needed to determine if the use of methotrexate or other methods is acceptable to the Church. If the use of methotrexate is illicit, the protocol would state that. It can’t be used. Ever.
The first (and last) time I called the USCCB was to ask how they received their authority to determine Church teaching. I talked to two people, one who transferred me, and a second who had never heard of CAF and blew me off by telling me to go to the website which was right in front of me at the time and was where I found the phone number (I couldn’t find an email addy). I realize that I’m not a Sister, I’m not a deacon, I’m not a priest, I’m not a bishop, and I’m certainly not the Vicar of Christ. But I am Catholic and I think it’s our right to know what the USCCB does, where they get their authority, and how they determine Church teaching.
To be fair, I did ask an apologist on CAF and was blown off again. I never even received a reply. This was one of the apologists who responds to the “Question to an Apologist.” I didn’t ask my question as a question to an apologist but through a PM. The only question I have ever had answered using the method of “asking an apologist” was one I presented that was so easy that any Catholic would know the answer. I actually presented that question as a test, just to see if only the easy questions that were being answered. It’s very frustrating to be forced to rely only on websites and the CCC in order to determine Church teaching and to read answers to questions like “When do Catholics take down their Christmas decorations?” while a question about the proper disposal of an irreparably broken rosary and scapular are ignored.
I just thought of something and I am happy to say there is one apologist on CAF who did not blow me off when I asked a question of him. In fact, he wrote an article on it and put it on his blog. Thank you, Jimmy Akin!!

Also, there is an apologist on CAF who answers many of the “Questions to an Apologist” who has helped me several times in the past. I suppose I should have asked her but I felt that I was asking too many questions of her and to be honest, I didn’t want to be a pest.
I always have questions to ask. I’m new at Catholicism.
Ooops, sorry - I went a bit off-topic there.
Earlier in this thread I posted a link to Jimmy Akin’s articles regarding this case on his blog. At that time he had written six articles. There are probably more know. Jimmy seems to know what he’s talking about. I’m going to read all of his articles and I think it would be a good idea for all of us who are interested and/or confused to read them. Of course he has a comments section where one can ask for clarification of points he has made. I believe he also answers questions during a radio program but I don’t have any info on how to access it.
I know we all want to know if the procedures followed in the case were morally licit. Wanting to know that is good. It’s good to discuss and I apologize for my uncharitable responses. I have a a problem with that and I’m praying for strength and wisdom to help me.