I haven't looked extensively into Aripiprazole (abilify), but as far as I know, these are the side-effects that are fairly unique to Aripiprazole:
1. Akathisia
(theoretically very rare, because of drug-design, but there are many reports of this - an inner restlessness that you can't define - fidgety, squirmy, very difficult to relax)
2. Hyposexuality/Hypersexuality
(because of its high affinity for the D3-receptor, this drug has a huge impact on sexual behaviour - it's very hard to predict the results however - it seems to be almost even
when it comes to less, more, or unchanged sexual behaviour - the drug-design was specifically to lessen impact on sexuality, but the result is mixed)
3. Impulsivity
(see #2 - D3-affinity causes this - but in theory, it could also HELP with such issues, then. This side-effect can be catastrophically strong btw, like gambling away all your money, undergoing a SEX-CHANGE(!) and so forth.)
Those are probably minor though, compared to the big ones which all Antipsychotics can potentially induce:
Like every antipsychotic it also holds the potential for causing Tardive Dyskinesia, but it has reportedly far less such issues, because of its design of being a Partial Agonist - i.e, depending on the dosage or circumstance, Aripiprazole can both block and activate various receptors of both dopamine and serotonin. TD is usually, like most side-effects, temporary, and will go away with stopping the drug and then trying it again - the problem is of course that it actually CAN be permanent...
Neuroleptic Malignant Syndrome - is of course the ULTIMATE serious side-effect of antipsychotics - it can be likened to Serotonin Syndrome in severity. This is rare though, very, very rare - theoretically, Aripiprazole should have less likelihood to cause this, because of it's partial agonism, but there have been reports.
https://en.wikipedia...ignant_syndrome
If you want to be completely safe, then familiarize yourself with the early symptoms, and keep an eye out for them, in a Medication-diary. Checking your blood-pressure throughout the day appears to be a simple way to see if there's any risk.
My personal opinion while reading up on the drug, is that it IS safer than previous Antipsychotics, but it does hold some potentially problematic side-effects. It should be noted that the research on third-gen AP's, which Aripiprazole is the first of its kind, is very, very low... even though it's been around for quite some time, it doesn't appear to be featured in as many reviews and deep independent trials as even other atypical AP's.
Two GOOD things about Aripiprazole is that it seems to cause less weight-gain and no gyno - it actually often causes LOWERING of prolactin! Seems to happen even in the people whom report hyposexuality from the drug.
The other two drugs in this class, are, as far as I know:
BREXpiprazole (causes weight-gain - likely alters metabolism, which Ari does not. Appears to have the greatest effect on depressive symptoms of any ap ever created)
Cariprazine (the highest affinity for the D3-receptor - theoretically even more capable of curbing or enhancing impulsive behaviour)
Since the movement-problems seems to come from affinity for Dopamine-receptors than D3, and are more common in older AP's that ONLY antagonise 5ht and DA -receptors, then Cariprazine could hypothetically be the safest, most benign AP ever created - with the highest efficacy on Impulsive Behaviour - which is what you seem to be experiencing difficulties with.
It's also the newest and least researched of any AP... There's no telling if it will REALLY have any effect whatsoever on Borderline Personality Disorder. No evidence whatsoever...
Buuut... My guess, that it's the D3-affinity which makes Aripiprazole such a good drug for BPD... it suggests that a drug with even higher such affinity may be good. Of course, I also believe Serotonin is actually more implicated in Borderline PD (can't recall the specific receptors though...) so perhaps the third-gen AP with the most affinity for the receptors associated with BPD, and with D3-affinity, will in reality be the most effective.
Read up on which serotonin-receptors have been the most implicated in BPD, and check the affinity-charts for Brexpiprazole, Aripiprazole and Cariprazine, to see which drug appears to have the highest affinity for those specific receptors - that might be your best bet.
In closing:
all third-gen AP's are slightly more safer than previous AP-generations - they can all cause the same side-effects though, just in varying degrees, which we can't quite tell how big of a difference each gen' has.
But they're a bit safer, in pretty much every way.
Read more:
Dose-dependent rapid-onset akathisia with aripiprazole in patients with schizoaffective disorder
https://www.ncbi.nlm...les/PMC2671776/
Antipsychotic-Induced Movement Disorders
https://www.ncbi.nlm...les/PMC3004713/
Second-Generation Antipsychotics and Neuroleptic Malignant Syndrome: Systematic Review and Case Report Analysis
https://link.springe...0268-014-0078-0