Medication Schedule for Severe Anxiety and Panic Attacks
For a patient with severe anxiety and panic attacks on Prozac 20 mg daily, Klonopin 0.25 mg, gabapentin 100 mg, and propranolol 10 mg, the optimal approach is: Prozac 20 mg every morning as baseline treatment, propranolol 10 mg as-needed 30-60 minutes before anticipated panic triggers or at panic onset, Klonopin 0.25 mg as-needed for breakthrough panic (maximum 2-3 times daily), and gabapentin 100 mg as-needed for situational anxiety like studying or social situations.
Daily Baseline Medication
Prozac (Fluoxetine) 20 mg:
- Take every morning 1
- This is your foundation medication that works continuously to prevent anxiety and panic attacks over time 1
- Takes 4-5 weeks to reach full effectiveness for panic disorder 1
- Do NOT skip doses - this medication needs consistent daily use 1
- If you miss a dose, take it as soon as you remember unless it's close to bedtime 1
As-Needed Medications (PRN)
For Acute Panic Attacks
Propranolol 10 mg - FIRST LINE for panic:
- Take 30-60 minutes BEFORE a situation that typically triggers panic (public speaking, crowded places, etc.) 2
- Can also take at the FIRST SIGN of panic symptoms (racing heart, chest tightness, sweating) 2
- Works by blocking physical symptoms of panic - slows heart rate, reduces tremor, decreases sweating 2
- Maximum: 3-4 doses per day, spaced at least 4-6 hours apart
- This should be your go-to medication for panic because it has no addiction risk 2
Klonopin (Clonazepam) 0.25 mg - SECOND LINE for panic:
- Use ONLY when propranolol is insufficient or panic is severe 3, 4
- Take at onset of panic attack if propranolol doesn't control symptoms 4
- Works within 30-60 minutes, peaks at 1-4 hours 4
- Maximum: 2-3 doses per day to avoid tolerance and dependence 4
- CAUTION: Benzodiazepines like Klonopin carry risk of dependence - use sparingly and track your usage 3
- Do not use daily unless specifically instructed by your physician 4
For Anticipatory/Situational Anxiety
Gabapentin 100 mg:
- Take 1-2 hours BEFORE anxiety-provoking situations like studying, exams, social events, or work presentations 3
- Works for generalized situational anxiety rather than acute panic 3
- Can cause drowsiness and dizziness - start with lower activities to assess tolerance 3
- Maximum: 3 doses per day, spaced at least 6-8 hours apart 3
- Best for "background anxiety" rather than sudden panic 3
Medication Selection Algorithm
When experiencing symptoms, follow this decision tree:
Anticipating a stressful situation in 30-60 minutes?
- YES → Take propranolol 10 mg now 2
- NO → Go to step 2
Currently having physical panic symptoms (racing heart, chest pain, sweating)?
Feeling general anxiety about upcoming task (studying, social event) in 1-2 hours?
- YES → Take gabapentin 100 mg 3
- NO → Use non-medication strategies (breathing exercises, grounding techniques)
Already took propranolol but panic persists after 30-45 minutes?
Critical Safety Warnings
Benzodiazepine (Klonopin) Precautions:
- Track every dose you take - if using more than 3 times per week, contact your physician 4
- Never stop abruptly if you've been using regularly - requires gradual taper 4
- Avoid alcohol completely when using Klonopin 4
- Can cause drowsiness - do not drive for 4-6 hours after taking 4
Prozac Considerations:
- May initially increase anxiety in first 1-2 weeks - this is temporary 3, 1
- Black box warning for suicidal thoughts in young adults - report any worsening depression or suicidal ideation immediately 3, 1
- Takes 4-5 weeks for full anti-panic effect 1, 5
- Very long half-life (4-6 days) means it stays in your system even if you miss a dose 6
Propranolol Warnings:
- Do not use if you have asthma, severe heart block, or very low blood pressure 2
- May mask symptoms of low blood sugar if diabetic 2
- Can cause fatigue or dizziness - assess tolerance before driving 2
When to Contact Your Physician
Urgent contact needed if:
- Using Klonopin more than 3 times per week consistently 4
- Panic attacks not controlled despite using all medications as directed 5
- New or worsening suicidal thoughts 1
- Severe dizziness, fainting, or very slow heart rate with propranolol 2
- Need to use propranolol more than 3-4 times daily 2
Routine follow-up needed for:
- Dose adjustments if current regimen insufficient - Prozac can be increased to 40-60 mg for panic disorder 1, 5, 7
- Periodic reassessment of need for as-needed medications 1
- Consideration of adding structured CBT therapy, which combined with Prozac shows superior outcomes to medication alone 3
Common Pitfalls to Avoid
- Do not use Klonopin as first-line - it should be reserved for breakthrough panic when propranolol is insufficient 3
- Do not expect immediate results from Prozac - full anti-panic effect takes 4-5 weeks 1, 5
- Do not take gabapentin for acute panic - it works for anticipatory anxiety, not sudden panic attacks 3
- Do not combine multiple as-needed medications simultaneously without trying propranolol alone first 2
- Do not discontinue Prozac abruptly - requires gradual taper to avoid withdrawal symptoms 1