diff --git a/deploy/docs_conversion.py b/deploy/docs_conversion.py
index 3059993..00be874 100644
--- a/deploy/docs_conversion.py
+++ b/deploy/docs_conversion.py
@@ -29,6 +29,10 @@ def create_r_doc(func):
             row = re.sub(r'^\.\. ', '', row)
         doc_str += f'{py_to_r_str(row)}\n'
 
+    # Replace LaTeX math code
+    math_pattern = re.compile(r'((:math:)|(math::))\s*`*.+(\\\n)*.+`*')
+    doc_str = re.sub(math_pattern, '(equation could not be rendered, see API doc on website)', doc_str)
+
     if 'params' in doc_dict.keys():
         doc_str += _create_r_params(doc_dict['params'], func)
     if 'returns' in doc_dict.keys():
@@ -102,8 +106,7 @@ def _translate_type_hints(var_type):
         if var_type.__module__.startswith('pharmpy'):
             return var_type.__name__
         elif var_type not in TYPE_DICT:
-            warnings.warn(f'Could not translate type: {var_type}')
-            return var_type
+            raise ValueError(f'Could not translate type: {var_type}')
         return TYPE_DICT[var_type]
     elif var_type == Any:
         return 'any'
diff --git a/deploy/help_functions.py b/deploy/help_functions.py
index 911d872..6aeb965 100644
--- a/deploy/help_functions.py
+++ b/deploy/help_functions.py
@@ -63,17 +63,7 @@ def py_to_r_str(arg, example=False):
              r'\w+\[Model\]': 'vector of Model',  # FIXME: more general pattern
              r'\w+\[ModelfitResults\]': 'vector of ModelfitResults'}  # FIXME: more general pattern
 
-    latex = {r'\\mathsf': '',
-             r'\\cdot': '*',
-             r'\\text': '',
-             r'\\frac': 'frac',
-             r'\\log': 'log',
-             r'\\exp': 'exp',
-             r'\\min': 'min',
-             r'\\max': 'max',
-             r'\\epsilon': 'epsilon'}
-
-    py_to_r_dict = {**args, **types, **latex}
+    py_to_r_dict = {**args, **types}
 
     if not example:
         py_to_r_dict = {**py_to_r_dict, **{r'\[([0-9]+)\]_*': r'(\1)'}}