I was taking tetracycline for 1 and a half months...

I was taking tetracycline for 1 and a half months and then decided to go on roaccutane. I started taking roaccutane a day after I took my tetracycline tablet. I discontinued tetracycline the day I started roaccutane. I have read that there are very severe effects of not waiting for at least a week after tetracycline before going on roaccutane. What do I do?
if you have already started using roaccutane for more than 1 week  , then stopping the medication have no benefits , but we suggest the following steps :
1. consult a dermatology doctor 
2. do the following tests :
- blood test 
- ESR , CRP 
- liver function test 
- kindey function test 
3. after the tests , doctor will decide to stop for while or continue your current medication course 
Are the effects guaranteed? Does this increase my risk of any brain diseases?
no , and no , liver disease is the most possible complication 
What are Roaccutane  side effects ?
1. mouth and face dryness
2. high liver function
3. low appetite 
4. insomnia 
5. bone pain
6. mood changes 
What should you after start taking Roaccutane  ?
1. taking the medical tests every 2 months 
- blood test 
- ESR , CRP 
- liver function test 
- kindey function test 
2. drink plenty of water 
3. stick to treatment duration ( 3 - 6 months ) 
4. you may use moisturizer products